A new image from the Very Large Telescope captures a cosmic cloud referred to as the Running Chicken Nebula, given its bright 'beak' and characteristic shape.
A new image from the Very Large Telescope captures a cosmic cloud referred to as the Running Chicken Nebula, given its bright 'beak' and characteristic shape.
SpaceX launched more than 130 missions this year and made significant progress with its new Starship vehicle, the biggest and most powerful rocket ever built.
SpaceX launched more than 130 missions this year and made significant progress with its new Starship vehicle, the biggest and most powerful rocket ever built.
A magnificent totality across North America, raging northern lights and a naked-eye comet were just three skywatching highlights in 2024. Here's how they all unfolded.
A magnificent totality across North America, raging northern lights and a naked-eye comet were just three skywatching highlights in 2024. Here's how they all unfolded.
Surrounded by candy canes and a makeshift snowman made out of stowage bags, the astronauts on the International Space Station gathered together to wish a Merry Christmas to everyone back on Earth.
Surrounded by candy canes and a makeshift snowman made out of stowage bags, the astronauts on the International Space Station gathered together to wish a Merry Christmas to everyone back on Earth.
For better or for worse, a small part of the Apollo 11 spacecraft will now be Jon Mesick's to have and to hold for all the days of his life. The tape is the centerpiece of Mesick's wedding band.
For better or for worse, a small part of the Apollo 11 spacecraft will now be Jon Mesick's to have and to hold for all the days of his life. The tape is the centerpiece of Mesick's wedding band.
A pair of massive thunderstorms have been spotted swirling in Jupiter's "South Equatorial Belt" and are likely unleashing massive bolts of green lightning. Some experts think the pale clouds could end up altering the rusty band's color — and potentially even making it "disappear."
A pair of massive thunderstorms have been spotted swirling in Jupiter's "South Equatorial Belt" and are likely unleashing massive bolts of green lightning. Some experts think the pale clouds could end up altering the rusty band's color — and potentially even making it "disappear."
United Launch Alliance (ULA) says its new, powerful Vulcan Centaur upper stage rocket could play a key role in defending satellites from potential threats in space.
United Launch Alliance (ULA) says its new, powerful Vulcan Centaur upper stage rocket could play a key role in defending satellites from potential threats in space.
What did you get fot X-mas? Scientists may have been gifted with a solution to the mystery of juMBOs, strange celestial bodies that seem to be neither planets nor stars.
What did you get fot X-mas? Scientists may have been gifted with a solution to the mystery of juMBOs, strange celestial bodies that seem to be neither planets nor stars.
On Christmas Eve (Dec. 24) NASA's parker Solar Probe made its closest approach to the sun yet, passing through the blisteringly hot outer atmosphere of our star.
On Christmas Eve (Dec. 24) NASA's parker Solar Probe made its closest approach to the sun yet, passing through the blisteringly hot outer atmosphere of our star.
Aurora chasers are on high alert for minor geomagnetic storm conditions on Dec. 25. Northern lights could be visible over some northern and upper Midwest states.
Aurora chasers are on high alert for minor geomagnetic storm conditions on Dec. 25. Northern lights could be visible over some northern and upper Midwest states.
Although these frosty fields look like a picturesque winter wonderland blanketed in snow, this ice is actually composed of frozen carbon dioxide over the southern Australe Scopuli region of Mars. The European Space Agency’s (ESA) Mars Express spotted this scene using its High Resolution Stereo Camera (HRSC) during its 23,324th orbit of the Red Planet.Continue reading "Mars Express captures the beauty of a martian frostscape"
The post Mars Express captures the beauty of a martian frostscape appea
Although these frosty fields look like a picturesque winter wonderland blanketed in snow, this ice is actually composed of frozen carbon dioxide over the southern Australe Scopuli region of Mars. The European Space Agency’s (ESA) Mars Express spotted this scene using its High Resolution Stereo Camera (HRSC) during its 23,324th orbit of the Red Planet.Continue reading "Mars Express captures the beauty of a martian frostscape"
Scientists theorize there could be subatomic particles we have yet to discover. Here are five of the weirdest, rarest hypothetical particles in the universe.
Scientists theorize there could be subatomic particles we have yet to discover. Here are five of the weirdest, rarest hypothetical particles in the universe.
The Doctor checks in to a very unusual hotel – here's how to watch "Doctor Who" Christmas special "Joy to the World" online on BBC iPlayer in the UK and on Disney Plus in the US.
The Doctor checks in to a very unusual hotel – here's how to watch "Doctor Who" Christmas special "Joy to the World" online on BBC iPlayer in the UK and on Disney Plus in the US.
How do spacecraft avoid collisions when passing through the asteroid belt? Val-David SmithsonPleasant Grove, Utah Let’s begin by reviewing some astronomical “history”: Han Solo and his rebel cohorts Leia Organa, Chewbacca, and C-3PO are nestled uncomfortably together in the Millennium Falcon’s cockpit while their ship is pursued by a battalion of Imperial fighters. Unable toContinue reading "How do spacecraft avoid collisions in the asteroid belt?"
The post How do spacecraft avoid collisions in
How do spacecraft avoid collisions when passing through the asteroid belt? Val-David SmithsonPleasant Grove, Utah Let’s begin by reviewing some astronomical “history”: Han Solo and his rebel cohorts Leia Organa, Chewbacca, and C-3PO are nestled uncomfortably together in the Millennium Falcon’s cockpit while their ship is pursued by a battalion of Imperial fighters. Unable toContinue reading "How do spacecraft avoid collisions in the asteroid belt?"
Author(s): Rainer KlagesA new theory related to the second law of thermodynamics describes the motion of active biological systems ranging from migrating cells to traveling birds.[Physics 17, 182] Published Mon Dec 23, 2024
A new theory related to the second law of thermodynamics describes the motion of active biological systems ranging from migrating cells to traveling birds.
Author(s): Rachel BerkowitzA proposed method could detect vortex states of high-energy particles through a scattering phenomenon called a superkick.[Physics 17, s157] Published Mon Dec 23, 2024
A bright streak of light in the pre-dawn skies above the U.K. could easily be mistaken for Santa Claus getting an early start to his Christmas deliveries.
A bright streak of light in the pre-dawn skies above the U.K. could easily be mistaken for Santa Claus getting an early start to his Christmas deliveries.
Over the past 200 years, astronomers have cataloged over a million asteroids in the solar system’s main belt, down to the size of around a kilometer in diameter. But smaller asteroids were elusive — until recently, when a team of scientists utilized data from the James Webb Space Telescope (JWST) to spot some tiny asteroidsContinue reading "Smallest main-belt asteroids ever detected found hiding in JWST data"
The post Smallest main-belt asteroids ever detected found hiding in JWST data appeared
Over the past 200 years, astronomers have cataloged over a million asteroids in the solar system’s main belt, down to the size of around a kilometer in diameter. But smaller asteroids were elusive — until recently, when a team of scientists utilized data from the James Webb Space Telescope (JWST) to spot some tiny asteroidsContinue reading "Smallest main-belt asteroids ever detected found hiding in JWST data"
Astronomers have accidently spotted a new type of cosmic explosion called a "millinova" triggered by white dwarfs feeding on stars. If that sounds familiar get ready for a suprise!
Astronomers have accidently spotted a new type of cosmic explosion called a "millinova" triggered by white dwarfs feeding on stars. If that sounds familiar get ready for a suprise!
Find meteorites, scale models, flown-in-space artifacts, and more at The Space Store.
The post Own a piece of the cosmos with Cosmic Collectibles appeared first on Astronomy Magazine.
SpaceX has the FAA’s green light to launch more test missions of its colossal Starship spacecraft, the largest and most powerful rocket to ever fly. The aviation regulator last week issued SpaceX a modified Part 450 launch license, allowing the firm to conduct multiple missions of Starship and the Super Heavy booster under the configurationContinue reading "FAA approves SpaceX for more Starship test missions"
The post FAA approves SpaceX for more Starship test missions appeared first on Astronom
SpaceX has the FAA’s green light to launch more test missions of its colossal Starship spacecraft, the largest and most powerful rocket to ever fly. The aviation regulator last week issued SpaceX a modified Part 450 launch license, allowing the firm to conduct multiple missions of Starship and the Super Heavy booster under the configurationContinue reading "FAA approves SpaceX for more Starship test missions"
John Quach 2024 was a banner year for aurora chasers, as the Sun reached solar maximum. This shot of the aurorae dancing above Mount Stuart in the Central Cascades of Washington was taken on Oct. 10 at 7:30 p.m. local time. The photographer used a Canon DSLR and 11mm f/2.8 lens to take a singleContinue reading "All lit up"
The post All lit up appeared first on Astronomy Magazine.
John Quach 2024 was a banner year for aurora chasers, as the Sun reached solar maximum. This shot of the aurorae dancing above Mount Stuart in the Central Cascades of Washington was taken on Oct. 10 at 7:30 p.m. local time. The photographer used a Canon DSLR and 11mm f/2.8 lens to take a singleContinue reading "All lit up"
SpaceX launched 21 Starlink internet satellites from Florida's Space Coast early Monday morning (Dec. 23) and landed the returning rocket on a ship at sea.
SpaceX launched 21 Starlink internet satellites from Florida's Space Coast early Monday morning (Dec. 23) and landed the returning rocket on a ship at sea.
NASA's Apollo spacecraft had briefcase-size computers that for their day would normally have filled two rooms. Apollo Instruments has been able to shrink the Apollo Guidance Computer even more.
NASA's Apollo spacecraft had briefcase-size computers that for their day would normally have filled two rooms. Apollo Instruments has been able to shrink the Apollo Guidance Computer even more.
Recent sightings of unidentified aircraft in New Jersey and other states have triggered another round of unanswered questions — and fueled conspiracy theories.
Recent sightings of unidentified aircraft in New Jersey and other states have triggered another round of unanswered questions — and fueled conspiracy theories.
After years of only new Star Wars shows, the franchise is ready to return to the big screen. But which upcoming Star Wars movies should you watch out for?
After years of only new Star Wars shows, the franchise is ready to return to the big screen. But which upcoming Star Wars movies should you watch out for?
While black holes are perplexing at any size, some of the most mysterious are hypothetical primordial black holes, those that sprung into existence in the first second after the Big Bang and some of which are featherweights on the black hole scale. Because black holes collapse matter down to nothing, a black hole with theContinue reading "Want to find a black hole? Pick up a rock"
The post Want to find a black hole? Pick up a rock appeared first on Astronomy Magazine.
While black holes are perplexing at any size, some of the most mysterious are hypothetical primordial black holes, those that sprung into existence in the first second after the Big Bang and some of which are featherweights on the black hole scale. Because black holes collapse matter down to nothing, a black hole with theContinue reading "Want to find a black hole? Pick up a rock"
The winter solstice marks the official start of the astronomical winter, as the sun reaches its most southerly point in the sky as seen from Earth. This seasonal change occurs on Dec. 21, 2024.
The winter solstice marks the official start of the astronomical winter, as the sun reaches its most southerly point in the sky as seen from Earth. This seasonal change occurs on Dec. 21, 2024.
دوگانگی کهکشانی۱، وجود دو گروه متمایز از کهکشانها است که بر اساس ویژگیهایی مانند رنگ، ریختشناسی۲ و نرخ ستارهزایی۳ کهکشانها از یکدیگر متمایز میشوند. این مفهوم اشاره به تفاوت بین کهکشانهای نوع پیشین۴ که معمولاً قرمز، بیضوی و از نظر ستارهزایی غیرفعال هستند، و کهکشانهای نوع پسین۵ که آبی، مارپیچی و ستارهزا میباشند، دارد. در نمودار رنگ-قدر مطلق (شکل ۱)، این دوگانگی به صورت دو توزیع مجزا دیده میشود: یک رشتهی قرمز که شامل کهکشانهای بیضوی است و یک ابر آبی که کهکشانهای مارپیچی را در بر می
دوگانگی کهکشانی۱، وجود دو گروه متمایز از کهکشانها است که بر اساس ویژگیهایی مانند رنگ، ریختشناسی۲ و نرخ ستارهزایی۳ کهکشانها از یکدیگر متمایز میشوند. این مفهوم اشاره به تفاوت بین کهکشانهای نوع پیشین۴ که معمولاً قرمز، بیضوی و از نظر ستارهزایی غیرفعال هستند، و کهکشانهای نوع پسین۵ که آبی، مارپیچی و ستارهزا میباشند، دارد. در نمودار رنگ-قدر مطلق (شکل ۱)، این دوگانگی به صورت دو توزیع مجزا دیده میشود: یک رشتهی قرمز که شامل کهکشانهای بیضوی است و یک ابر آبی که کهکشانهای مارپیچی را در بر میگیرد. کهکشانهای دارای هستهی فعال۶ که معمولا در مرحلهی گذار هستند مابین این دو گروه، در ناحیهای به نام درهی سبز۷ قرار میگیرند؛ این دسته از کهکشانها یا در حال گذار به سمت خاموش شدن۸ هستند و یا در حال جوان سازی۹ و تشکیل مجدد ستاره میباشند.
شکل ۱. نمودار قدر-رنگ: طرح شماتیک از نمودار قدر-رنگ کهکشانها با سه جمعیت: رشتهی قرمز، ابر آبی و درهی سبز. منبع: ویکیپدیا
مقالهی پیش رو به بررسی دوگانگی کهکشانها بر اساس ریختشناسی جنبشی آنها و رابطهی این دوگانگی به مسیرهای متفاوت خاموش شدن ستارهزایی در کهکشانها میپردازد. نویسندگان با تحلیل دادههای طیفنگاری پروژهی MaNGA و بررسی بیش از ۳۰۰۰ کهکشان، به این نتیجه رسیدهاند که توزیع پارامتر چرخش ذاتی۱۰ ستارهای (λ_Re) در کهکشانهایی با جرم ستارهای یکسان در تمامی حالات ستارهزایی و محیطها به طور جهانشمولی دوگانه است.
پارامتر چرخش ذاتی ستارهای (λ_Re) یکی از معیارهای کلیدی در توصیف ریختشناسی جنبشی کهکشانها است و میزان چرخش منظم ستارهها را نسبت به حرکت تصادفی آنها در یک سیستم کهکشانی نشان میدهد. این پارامتر به طور مستقیم به تکانهی زاویهای ویژهی بههنجارشده۱۱ی ستارهها مرتبط است و اطلاعات مهمی دربارهی تاریخچهی شکلگیری و تحول کهکشانها ارائه میدهد. بر اساس نظریهی تشکیل ساختار سلسلهمراتبی۱۲، رویدادهای شدید و آشوبناکی مانند ادغام کهکشانها، میتوانند چرخش کهکشانها را کاهش دهند و یا از بین ببرند و آنها را تبدیل به سیستمهای ستارهای با چرخش کند و ساختارهای کروی کنند. برعکس، کهکشانهایی که تاریخچهی ستارهزایی آرام و منظمی داشتهاند، معمولاً ساختارهای دیسکی با چرخش سریع دارند.
در این مقاله ابتدا توزیع پارامتر چرخش ذاتی ستارهای در یک جرم ستارهای و نرخ ستارهزایی مطالعه شده است. نمودار سمت چپ در شکل ۲ نرخ ستارهزایی را در مقابل جرم ستارهای کهکشانهای MaNGA نشان میدهد. این نمودار توسط سه خط زردرنگ به سه ناحیه تقسیم شدهاست: گروه کهکشانهای فعال یا ستارهزا، گروه کهکشانهای در حال گذار یا درهی سبز، و گروه کهکشانهای غیرستارهزا یا منفعل۱۳. در دو نمودار سمت راست، کهکشانهای MaNGA به دو دستهی کمجرم و پرجرم تقسیم شدهاند و رابطهی بین پارامتر چرخش ذاتی ستارهای آنها با نرخ ستارهزاییشان نشان داده شدهاست. در این دو نمودار از بالا به پایین نرخ ستارهزایی کاهش مییابد. همانطور که دیده میشود، چرخش ذاتی ستارهای کهکشانهای پرجرم با کاهش نرخ ستارهزایی، کندتر میشود. طبق نمودارهای شکل ۲، در هر بازهی جرمی و هر میزان ستارهزایی، دوگانگی آشکاری در رفتار جنبشی کهکشانها وجود دارد. با افزایش جرم و کاهش نرخ ستارهزایی، کهکشانهایی با چرخش ستارهای کند (منحنی قرمز) غالب میشوند. درحالی که کهکشانهای در حالت گذار (کهکشانهای درهی سبز)، ترکیب متعادلتری از هر دو جمعیت را دارند. این خود میتواند شاهدی بر مسیرهای متفاوت خاموششدن در کهکشانها باشد. برای مثال کهکشانهای دیسکی (با چرخش سریع) میتوانند تاریخچهی آرامتری داشته باشند و کهکشانهای کروی (با چرخش کند) میتوانند تاریخچهی پرآشوبتری (مانند ادغام کهکشانی) داشته باشند.
شکل ۲. نموارد سمت چپ کهکشانهای مورد مطالعه در این مقاله را نشان میدهد؛ کهکشانهای مورد مطالعه به صورت نقاط مشکی بر اساس میزان ستارهزایی و جرم ستارهای نشان داده شدهاند. ازسمت بالا به پایین ناحیهی بین دو خط زرد نشان دهندهی محدودهی کهکشانهای ستارهزا و ناحیهی بین خط زرد دوم و سوم، محدودهی درهی سبز و ناحیهی زیر خط سوم، محدودهی کهکشانهای خاموش شده را نشان میدهند. دو گروه قرمز و آبی، به ترتیب نشان دهندهی کهکشانهای کم جرم و پر جرم هستند. بررسی توزیع پارامتر چرخش ذاتی ستارهها در این کهکشانهای کم جرم و پرجرم درنمودار سمت راست، به ترتیب در ستون اول و دوم نشان داده شده است.
نویسندگان برای بررسی تاریخچهی ستارهزایی این کهکشانها به سراغ اندازهگیری نرخ ستارهزایی در دو بازهی زمانی رفتهاند: یک بازهی زمانی کوتاه و یک بازهی زمانی بلند. آنها از این واقعیت استفاده کردهاند که درخشندگی خط نشری هیدروژن-آلفا در طیف کهکشانها میتواند فوتونهای یونیزه شده توسط ستارههای پرجرم با طول عمر کوتاه را ردیابی کند و در نتیجه، نرخ ستارهزایی را در بازهی زمانی حدود ۱۰ میلیون سال اخیر نشان دهد. در حالی که نرخ ستارهزایی که بر اساس توزیع انرژی طیفی در بازهی طول موجی فرابنفش و مادون قرمز میانه اندازهگیری میشود، میانگین نرخ ستارهزایی را در بازه زمانی ۱۰۰ میلیون ساله نشان میدهد. این بازهی زمانی مربوط به طول عمر ستارههای جوان است که در ناحیهی فرابنقش تابش میکنند. در کهکشانهایی با تاریخچهی ستارهزایی یکنواخت (مثل کاهش تدریجی نرخ ستارهزایی)، این دو روش نتایح یکسانی را برای نرخ ستارهزایی کهکشان میدهند. اما در کهکشانهایی که دچار تغییرات سریع در نرخ ستارهزایی شدهاند (مانند فوران یا توقف ناگهانی ستارهزایی)، ناسازگاری بین نتایج این دو روش دیده میشود. این ناسازگاری ناشی از این است که ستارگان پرجرم و کوتاهعمر به پایان عمر خود رسیدهاند، اما ستارگان جوانتر (ستارگانی که در مراحل اولیهی عمر خود هستند) و کمجرمتر همچنان در بازهی ۱۰۰ میلیون ساله تابش دارند.
در شکل ۳ رابطهی بین تاریخچهی ستارهزایی حاصل از این دو روش و پارامتر چرخش ستارهای برای دو گروه کهکشانهای ستارهزا و درهی سبز نشان داده شدهاست. در این شکل کهکشانهای غیرستارهزا (منفعل) نشان دادهنشدهاند زیرا طبق تعریف این کهکشانها دارای تابش هیدروژن-آلفا که نشان دهندهی فعالیت اخیر ستارهزایی است، نیستند. طبق این شکل، کهکشانهایی که میزان تابش هیدروژن-آلفای آنها با نرخ ستارهزایی حاصل از روش توزیع انرژی طیفی رابطهی یکبهیک دارد، معمولاً چرخش سریعتری دارند (آبیتر هستند، در این شکل متمایل به رنگ سبز). این نشاندهندهی تاریخچهی ستارهزایی پایدارتر آنها است. کهکشانهایی که از روند کلی منحرف شدهاند (یعنی هیدروژن-آلفا کمتر از انتظار در مقابل نرخ ستارهزایی صد ساله دارند)، معمولاً چرخش آهستهتری دارند (رنگ متمایل به صورتی) که این نشاندهندهی توقف سریع ستارهزایی در این کهکشانها است، زیرا ستارگان پرجرم در این کهکشانها سریعتر به پایان عمر خود رسیدهاند. همچنین در این شکل مشاهده میشود که در میان کهکشانهای ستارهزا، ردیف اول، اکثر کهکشانها دارای پارارمتر چرخش ستارهای سریع هستند در حالی که در میان کهکشانهای درهی سبز شاهد دو گروه مجزا از کهکشانهای سریع و کند هستیم که نشاندهندهی تحول کهکشانها به سمت خاموش شدن و طی مسیرهای متفاوت میباشد.
شکل ۳. محور افقی نرخ ستاره زایی صد میلیون ساله را نشان میدهد که براساس مدل سازی بر اساس توزیع انرژی طیفی در بازهی طول موجی فرابنفش و مادون قرمز میانه اندازهگیری میشود. محور عمودی، نرخ ستارهزایی در بازه زمانی کوتاهتر، حدود ۱۰ میلیون سال اخیر است که براساس درخشندگی خط تابشی هیدروژن-آلفا اندازهگیری شده است. رنگ دادهها: هر کهکشان با رنگهایی کدگذاری شده که بیانگر تفاوت میان پارارمتر چرخش ستارهای برای یک کهکشان و میانگین پارامتر چرخش ستارهای برای کهکشانهای با جرم و نرخ تشکیل ستاره مشابه است ؛سبز: کهکشانهایی با حرکت زاویهای بیشتر از میانگین و صورتی: کهکشانهایی با حرکت زاویهای کمتر از میانگین.
به منظور بررسی مسیرهای متفاوت تکامل کهکشانها، نویسندگان میزان فلزیت این کهکشانها را نیز بررسی کردهاند. زیرا فلزیت میتواند سرنخهای کلیدی درباره فرآیندهای فیزیکی که منجر به خاموشی کهکشانها شدهاند را بدهد. از دست دادن سریع گاز میتواند منجر به تشکیل کهکشانی منفعل با فلزیتی مشابه کهکشان اولیهی ستارهزا شود. در صورتیکه اگر کهکشانها به طور تدریجی منابع گازی خود را از دست بدهند، ستارهزایی رفتهرفته کاهش مییابد و فلزیت، به دلیل غنی شدن محیط بین ستارهای افزایش مییابد. کهکشانهایی با چرخش سریع، تمایل دارند دیسکیشکل و پایدارتر باشند. این پایداری به آنها اجازه میدهد که فرآیند از دست دادن گاز را به آرامی تجربه کنند، بدون اینکه به طور ناگهانی دچار اختلال شوند. این درحالی است که اگر کهکشانها به صورت ناگهانی خاموش شوند، گاز خود را توسط فرآیندهای شدید و آشوبناک از دست میدهند و فلزیت کمتری پیدا میکنند. کهکشانهایی با چرخش آهسته، معمولاً کروی یا بیضوی هستند و اغلب از طریق ادغامهای بزرگ و شدید شکل گرفتهاند. این ادغامها میتوانند گاز را به سرعت از کهکشان خارج کنند. ستارگان پرجرم و فعال و یا سیاهچالههای ابرپرجرم۱۴ میتوانند گاز میانستارهای را با فورانهای قوی به خارج پرتاب کنند. کهکشانهایی که در خوشههای کهکشانی قرار دارند، ممکن است گاز خود را به دلیل حرکت سریع در میان محیط چگال میانخوشهای۱۵ از دست بدهند. با حذف گاز، کهکشان به طور ناگهانی و سریع خاموش میشود. حذف ناگهانی گاز فرصت زیادی برای غنیسازی عناصر سنگین باقی نمیگذارد. در نتیجه، فلزیت کهکشانهای با چرخش آهسته نسبت به کهکشانهای با چرخش سریع کمتر است.
شکل ۴ نشان میدهد که فلزیت کهکشانهایی با چرخش سریع با کاهش نرخ ستارهزایی (از ستارهزا (آبی) تا عیر ستارهزا (قرمز)) افزایش مییابد. این رفتار نشاندهندهی فرایند خاموشی تدریجی در کهکشانهایی است که به تدریج منابع گازی خود را از دست میدهند و در نتیجه فلزیت ستارهای آنها افزایش مییابد. فلزیت کهکشانهایی با چرخش آهسته به نرخ ستارهزایی بستگی ندارد زیرا هر سه گروه کهکشانی فلزیت مشابهی را برای کهکشانها با جرمهای مختلف نشان میدهند. این نشاندهندهی فرآیند خاموشی سریع است که در آن کهکشانها گاز خود را از طریق فورانهای قوی یا ادغامهای بزرگ به سرعت از دست میدهند، بدون اینکه فرصت کافی برای افزایش فلزیت داشته باشند.
شکل۴. رابطهی میان فلزیت و جرم ستارهای را برای دو جمعیت مختلف کهکشانها. جمعیت با چرخش سریع (چپ): این دسته معمولاً کهکشانهای قرصی و دیسکیشکل هستند که پارامتر چرخش ستارهای بالاتری دارند. جمعیت با چرخش آهسته (راست): این دسته معمولاً کهکشانهای کرویشکل و دارای حرکت آهسته هستند. رنگ قرمز، سبز و آبی به ترتیب نشان دهندهی کهکشانهای منفعل، کهکشانهای درهی سبز و کهکشانهای فعال یا ستارهزا هستند.
به طور خلاصه این مقاله نشان میدهد که دوگانگی در پارامتر چرخش ستارهای کهکشانهایی که در یک گروه جرمی و با یک میزان از نرخ ستارهزایی هستند، وجود دارد و این دوگانگی نشاندهندهی مسیرهای تحولی متفاوت آنها میباشد.
۱. Galaxy Bimodality
۲. Morphology
۳. Star Formation Rate
۴. Early-Type Galaxies
۵. Late-Type Galaxies
۶.Active Galactic Nuclei
۷. Green Valley
۸. Quenching
۹. Rejuvenation
۱۰. Intrinsic Spin Parametr
۱۱. Normalised
۱۲. Hierarchichal Structure Formation
۱۳. Passive
۱۴. Super Massive Blackhole
۱۵. Intracluster Medium
شکل بالای صفحه مربوط به مقالهای از Schawinski و همکاران در سال ۲۰۱۴ هست که به بررسی کهکشانهای شناسایی شده در پروژهی Galaxy Zoo در درهی سبز میپردازند. لینک مقاله: https://arxiv.org/abs/1402.4814
عنوان اصلی مقاله: Universal bimodality in kinematic morphology and the divergent pathways to galaxy quenching
نویسندگان: Bitao Wang, Yingjie Peng, Michele Cappellari
لینک اصلی مقاله: https://arxiv.org/abs/2409.17257
A SpaceX Falcon 9 rocket carrying 30 payloads as part of the Bandwagon-2 mission launches from Vandenberg Space Force Base in California on Saturday, Dec. 21, 2024.
A SpaceX Falcon 9 rocket carrying 30 payloads as part of the Bandwagon-2 mission launches from Vandenberg Space Force Base in California on Saturday, Dec. 21, 2024.
The recent furor over drones, planes, helicopters, aliens, or whatever centered on aerial sightings in New Jersey is causing a flap. Given the huge number of sightings and the tenor of alarm from many, the Federal Aviation Administration has issued 22 temporary flight restrictions along the approach paths to Newark International Airport and a fewContinue reading "You’re almost certainly not being visited by aliens"
The post You’re almost certainly not being visited by aliens appeared first on As
The recent furor over drones, planes, helicopters, aliens, or whatever centered on aerial sightings in New Jersey is causing a flap. Given the huge number of sightings and the tenor of alarm from many, the Federal Aviation Administration has issued 22 temporary flight restrictions along the approach paths to Newark International Airport and a fewContinue reading "You’re almost certainly not being visited by aliens"
A SpaceX Falcon 9 rocket ignites each its engines just as an abort is called at the Cape Canaveral Space Force Station in Florida on Saturday, Dec. 20, 2024.
A SpaceX Falcon 9 rocket ignites each its engines just as an abort is called at the Cape Canaveral Space Force Station in Florida on Saturday, Dec. 20, 2024.
NASA's Orion spacecraft recently completed an 11-month test campaign, during which it was subjected to extreme conditions of a launch abort scenario and electromagnetic effects of lightning strikes.
NASA's Orion spacecraft recently completed an 11-month test campaign, during which it was subjected to extreme conditions of a launch abort scenario and electromagnetic effects of lightning strikes.
Author(s): Michael SchirberA method for imaging spin waves in magnetic materials uses flash-like intensity variations in a laser beam to capture the wave motion at specific moments in time.[Physics 17, 186] Published Fri Dec 20, 2024
A method for imaging spin waves in magnetic materials uses flash-like intensity variations in a laser beam to capture the wave motion at specific moments in time.
Photos of the dormant InSight lander captured from Mars orbit are providing researchers new data on how dust accumulates and evolves over time on the Red Planet.
Photos of the dormant InSight lander captured from Mars orbit are providing researchers new data on how dust accumulates and evolves over time on the Red Planet.
Using the NASA space telescopes Hubble and Chandra astronomers have discovered a strange black hole that has been knocked on its side in a cosmic crime scene.
Using the NASA space telescopes Hubble and Chandra astronomers have discovered a strange black hole that has been knocked on its side in a cosmic crime scene.
Plenty of worlds in our solar system have oceans — and not all of them are made of water. Io, Jupiter’s innermost moon, was purported to have one made of basalt and bits of sulfur just under its surface, powering its volcanic eruptions. But according to a study published in Nature last week, a globalContinue reading "Io’s magma ocean may not exist after all"
The post Io’s magma ocean may not exist after all appeared first on Astronomy Magazine.
Plenty of worlds in our solar system have oceans — and not all of them are made of water. Io, Jupiter’s innermost moon, was purported to have one made of basalt and bits of sulfur just under its surface, powering its volcanic eruptions. But according to a study published in Nature last week, a globalContinue reading "Io’s magma ocean may not exist after all"
As the U.S. Space Force celebrates its fifth anniversary, the service's leadership looked back on its accomplishments so far while looking ahead to the future.
As the U.S. Space Force celebrates its fifth anniversary, the service's leadership looked back on its accomplishments so far while looking ahead to the future.
Anushtup Roychoudhury from Kolkata, India The crowded core of the Milky Way (at top) and the colorful Rho Ophiuchi cloud complex (at right) hang over the Drang-Drung Glacier in India’s Ladakh region. The imager captured the sky with a Sony mirrorless camera and a 50mm lens, taking 2-minute subframes at f/3.5 and ISO 2500 forContinue reading "Cosmic confluence"
The post Cosmic confluence appeared first on Astronomy Magazine.
Anushtup Roychoudhury from Kolkata, India The crowded core of the Milky Way (at top) and the colorful Rho Ophiuchi cloud complex (at right) hang over the Drang-Drung Glacier in India’s Ladakh region. The imager captured the sky with a Sony mirrorless camera and a 50mm lens, taking 2-minute subframes at f/3.5 and ISO 2500 forContinue reading "Cosmic confluence"
Friday, December 20Now that the evening sky is Moon-free, it’s time to aim for fainter targets, including 12th-magnitude Comet 333P/LINEAR. Located in far northern Cygnus, close to where that constellation’s border meets those of Cepheus and Draco, LINEAR sits some 8.4° northeast of magnitude 3.8 Kappa (κ) Cygni tonight. The comet is roughly halfway alongContinue reading "The Sky This Week from December 20 to 27: Welcome the winter solstice"
The post The Sky This Week from December 20 to 27: Wel
Friday, December 20Now that the evening sky is Moon-free, it’s time to aim for fainter targets, including 12th-magnitude Comet 333P/LINEAR. Located in far northern Cygnus, close to where that constellation’s border meets those of Cepheus and Draco, LINEAR sits some 8.4° northeast of magnitude 3.8 Kappa (κ) Cygni tonight. The comet is roughly halfway alongContinue reading "The Sky This Week from December 20 to 27: Welcome the winter solstice"
Russian cosmonauts Alexey Ovchinin and Ivan Vagner installed an X-ray detector and jettisoned trash during a spacewalk outside the International Space Station on Thursday, Dec. 19, 2024.
Russian cosmonauts Alexey Ovchinin and Ivan Vagner installed an X-ray detector and jettisoned trash during a spacewalk outside the International Space Station on Thursday, Dec. 19, 2024.
The James Webb Space Telescope used a galaxy as a cosmic magnifying glass to find transient objects in the "Christmas Tree" cluster, a Winter Wonderland of even more galaxies.
The James Webb Space Telescope used a galaxy as a cosmic magnifying glass to find transient objects in the "Christmas Tree" cluster, a Winter Wonderland of even more galaxies.
A "missing link" black hole in Omega Centauri is still missing. What appeared to be an intermediate-mass black hole was a cluster of stellar-mass black holes.
A "missing link" black hole in Omega Centauri is still missing. What appeared to be an intermediate-mass black hole was a cluster of stellar-mass black holes.
Author(s): Matteo RiniAn independent analysis of data on the hotly debated superconductivity of certain hydrogen-rich compounds, or hydrides, concludes that the phenomenon is likely genuine.[Physics 17, 184] Published Thu Dec 19, 2024
An independent analysis of data on the hotly debated superconductivity of certain hydrogen-rich compounds, or hydrides, concludes that the phenomenon is likely genuine.
Author(s): Michael SchirberNew experiments with cuprate materials explore a connection between so-called charge-density waves and a light-induced state that resembles superconductivity.[Physics 17, s154] Published Thu Dec 19, 2024
New experiments with cuprate materials explore a connection between so-called charge-density waves and a light-induced state that resembles superconductivity.
Author(s): Rachel BerkowitzA theory outlines an immunization protocol that fosters powerful antibodies while avoiding immune-cell death.[Physics 17, s159] Published Thu Dec 19, 2024
Russian cosmonauts Alexey Ovchinin and Ivan Vagner will perform a six-and-a-half-hour spacewalk on Dec. 19 to install new equipment outside the ISS. Watch it live here, courtesy of NASA.
Russian cosmonauts Alexey Ovchinin and Ivan Vagner will perform a six-and-a-half-hour spacewalk on Dec. 19 to install new equipment outside the ISS. Watch it live here, courtesy of NASA.
Investigating a young exoplanet called PDS 70b in its cocoon of natal gas and dust has shown that planets don't always resemble the environments they form in.
Investigating a young exoplanet called PDS 70b in its cocoon of natal gas and dust has shown that planets don't always resemble the environments they form in.
Meet HD 65907, an imposter. It’s a star that appears far too young for its age. Astronomers have finally cracked the case of this mysterious object, which has not led a normal life. Instead, the star appears to be the result of the merger of two much older stars. Astronomers have a name for starsContinue reading "‘Blue straggler’ likely born from a collision of stars"
The post ‘Blue straggler’ likely born from a collision of stars appeared first on Astronomy Magazine.
Meet HD 65907, an imposter. It’s a star that appears far too young for its age. Astronomers have finally cracked the case of this mysterious object, which has not led a normal life. Instead, the star appears to be the result of the merger of two much older stars. Astronomers have a name for starsContinue reading "‘Blue straggler’ likely born from a collision of stars"
Firefly Aerospace and Japanese company ispace are putting their moon landers on the same SpaceX Falcon 9 rocket, which is scheduled to lift off in January.
Firefly Aerospace and Japanese company ispace are putting their moon landers on the same SpaceX Falcon 9 rocket, which is scheduled to lift off in January.
Author(s): Julie Gould and Matteo RiniResearchers from the Berkeley Lab Laser Accelerator Center talk about their latest results on a laser-based particle-acceleration technique that could lead to cheaper and more compact x-ray sources and particle accelerators.[Physics 17, 185] Published Wed Dec 18, 2024
Researchers from the Berkeley Lab Laser Accelerator Center talk about their latest results on a laser-based particle-acceleration technique that could lead to cheaper and more compact x-ray sources and particle accelerators.
Tune into a live webinar on Dec. 19 as several cultural and scientific icons will answer questions about mysteries of the universe and space travel from an Antarctica-bound luxury expedition vessel.
Tune into a live webinar on Dec. 19 as several cultural and scientific icons will answer questions about mysteries of the universe and space travel from an Antarctica-bound luxury expedition vessel.
The James Webb Space Telescope has caught a napping monster black hole in the early universe. The cosmic giant is slumbering after a massive meal like a reveller on Christmas Day.
The James Webb Space Telescope has caught a napping monster black hole in the early universe. The cosmic giant is slumbering after a massive meal like a reveller on Christmas Day.
The innermost Earth-like planet in the famous TRAPPIST-1 system might be capable of supporting a thick atmosphere after all, according to new research.
The innermost Earth-like planet in the famous TRAPPIST-1 system might be capable of supporting a thick atmosphere after all, according to new research.
Chris Schur from Payson, Arizona A magnificent arcade of coronal loops appeared on the Sun’s limb Sept. 1, 2024, captured here with a 3.2-inch refractor, CMOS camera, and a Calcium-K filter. These arcing features are caused by glowing plasma trapped in the Sun’s magnetic field. While often seen in Hα, they are less frequently visibleContinue reading "Calcium arcade"
The post Calcium arcade appeared first on Astronomy Magazine.
Chris Schur from Payson, Arizona A magnificent arcade of coronal loops appeared on the Sun’s limb Sept. 1, 2024, captured here with a 3.2-inch refractor, CMOS camera, and a Calcium-K filter. These arcing features are caused by glowing plasma trapped in the Sun’s magnetic field. While often seen in Hα, they are less frequently visibleContinue reading "Calcium arcade"
Earth and the Moon are forever locked in a gravitational embrace that has played a critical role in determining the fate of both worlds. Although they have grown more distant since their formative years, new research published today in Nature shows just how powerful their attraction was in their youth: According to the study, Earth’sContinue reading "Earth’s gravity gave the Moon an early facelift"
The post Earth’s gravity gave the Moon an early facelift appeared first on Astronomy Magazine.
Earth and the Moon are forever locked in a gravitational embrace that has played a critical role in determining the fate of both worlds. Although they have grown more distant since their formative years, new research published today in Nature shows just how powerful their attraction was in their youth: According to the study, Earth’sContinue reading "Earth’s gravity gave the Moon an early facelift"
The moon may have received a volcanic facelift, making it more than 100 million years older than rocks collected from its surface might suggest, a new study finds.
The moon may have received a volcanic facelift, making it more than 100 million years older than rocks collected from its surface might suggest, a new study finds.
Author(s): Marlene TurnerA laser-driven electron accelerator delivers beams of ∼10-GeV electrons—an approach that could lead to cheaper, more compact alternatives to large-scale x-ray sources and particle accelerators.[Physics 17, 183] Published Wed Dec 18, 2024
A laser-driven electron accelerator delivers beams of 10-GeV electrons—an approach that could lead to cheaper, more compact alternatives to large-scale x-ray sources and particle accelerators.
Author(s): Marric StephensBy measuring the melting temperature of iron under high transient pressure, researchers set a limit on the temperature at the boundary between the inner and outer cores.[Physics 17, s139] Published Wed Dec 18, 2024
By measuring the melting temperature of iron under high transient pressure, researchers set a limit on the temperature at the boundary between the inner and outer cores.
The disagreement in the rate of expansion of the universe, the Hubble tension, could arise from the fact Earth sits in an under-dense supervoid region of space.
The disagreement in the rate of expansion of the universe, the Hubble tension, could arise from the fact Earth sits in an under-dense supervoid region of space.
Still from Star Wars: Skeleton Crew TV series. A disheveled girl with long hair is wearing a long-sleeved shirt and some shoulder armor. She is holding a T-shaped piece of metal.
Still from Star Wars: Skeleton Crew TV series. A disheveled girl with long hair is wearing a long-sleeved shirt and some shoulder armor. She is holding a T-shaped piece of metal.
A Long March 5B rocket launched 10 big broadband satellites to orbit on Dec. 16, beginning the assembly of China's Guowang ("national network") megaconstellation.
A Long March 5B rocket launched 10 big broadband satellites to orbit on Dec. 16, beginning the assembly of China's Guowang ("national network") megaconstellation.
Two Chinese astronauts spent more than nine hours outside the nation's Tiangong space station on Dec. 16 and Dec. 17, beating the old EVA duration record by 10 minutes.
Two Chinese astronauts spent more than nine hours outside the nation's Tiangong space station on Dec. 16 and Dec. 17, beating the old EVA duration record by 10 minutes.
Just as Homo sapiens once exploded out of Africa to colonize the Earth our influence is spreading in the solar system. New research says we must track the cosmic migration to Mars.
Just as Homo sapiens once exploded out of Africa to colonize the Earth our influence is spreading in the solar system. New research says we must track the cosmic migration to Mars.
NASA astronauts Butch Wilmore and Suni Williams will stay in space an extra month, until March 2025, giving SpaceX more time to complete a new Crew Dragon capsule.
NASA astronauts Butch Wilmore and Suni Williams will stay in space an extra month, until March 2025, giving SpaceX more time to complete a new Crew Dragon capsule.
The FAA issued a launch license for SpaceX's upcoming Starship Flight 7, clearing the way for the company's next launch of the world's largest rocket from South Texas.
The FAA issued a launch license for SpaceX's upcoming Starship Flight 7, clearing the way for the company's next launch of the world's largest rocket from South Texas.
Winter does not officially arrive until the solstice. The 2024 winter solstice — the precise moment when the Sun appears farthest south in the sky — is at 4:21 a.m. Eastern Standard Time (EST) on Saturday, Dec. 21, in the Northern Hemisphere, according to the U.S. Naval Observatory. Throughout the Northern Hemisphere, the day ofContinue reading "Why the winter solstice is the longest night every year, and when it happens in 2024"
The post Why the winter solstice is the longest night every year,
Winter does not officially arrive until the solstice. The 2024 winter solstice — the precise moment when the Sun appears farthest south in the sky — is at 4:21 a.m. Eastern Standard Time (EST) on Saturday, Dec. 21, in the Northern Hemisphere, according to the U.S. Naval Observatory. Throughout the Northern Hemisphere, the day ofContinue reading "Why the winter solstice is the longest night every year, and when it happens in 2024"
Author(s): Elizabeth FernandezA black hole accreting mass above the so-called Eddington limit may explain how supermassive black holes reach billions of times the mass of our Sun.[Physics 17, 180] Published Tue Dec 17, 2024
The universe of U.S. postage stamps featuring James Webb Space Telescope imagery is set to expand again in 2025. The U.S. Postal Service revealed its Priority Mail and Express flat rate stamps.
The universe of U.S. postage stamps featuring James Webb Space Telescope imagery is set to expand again in 2025. The U.S. Postal Service revealed its Priority Mail and Express flat rate stamps.
A new trailer for "Edge of Space," a short film about a daring X-15 pilot flying the rocket-powered experimental plane higher than any other piloted winged vehicle other than the space shuttle.
A new trailer for "Edge of Space," a short film about a daring X-15 pilot flying the rocket-powered experimental plane higher than any other piloted winged vehicle other than the space shuttle.
Veiled in gas and clouds, the Milky Way’s center does not easily give up secrets. The initial detection of its supermassive black hole (SMBH) decades ago posed as many riddles as it solved, including the puzzling absence of binary stars around it. The hot, massive stars that populate the region are almost always found asContinue reading "Binary star system finally discovered near Milky Way center"
The post Binary star system finally discovered near Milky Way center appeared first on Astronomy Ma
Veiled in gas and clouds, the Milky Way’s center does not easily give up secrets. The initial detection of its supermassive black hole (SMBH) decades ago posed as many riddles as it solved, including the puzzling absence of binary stars around it. The hot, massive stars that populate the region are almost always found asContinue reading "Binary star system finally discovered near Milky Way center"
Author(s): Rachel BerkowitzMinerals exposed during an ancient Mediterranean Sea desiccation should reveal damage caused by muons, providing evidence of enhanced cosmic-ray fluxes.[Physics 17, s136] Published Tue Dec 17, 2024
Minerals exposed during an ancient Mediterranean Sea desiccation should reveal damage caused by muons, providing evidence of enhanced cosmic-ray fluxes.
Author(s): Ryan WilkinsonAtomic simulations deepen the mystery of how engineered materials known as refractory high-entropy alloys can suffer so little damage by radiation.[Physics 17, s156] Published Tue Dec 17, 2024
In this episode, Dave Eicher invites you to observe the nearly full Moon as it passes Mars on the evening of December 17. Both objects closely follow the Sun’s apparent path through the stars, called the ecliptic. This time, however, they’ll be quite close, only about 1 degree apart. That distance is twice the diameterContinue reading "The Moon passes Mars: This Week in Astronomy with Dave Eicher"
The post The Moon passes Mars: This Week in Astronomy with Dave Eicher appeared first on Astronomy
In this episode, Dave Eicher invites you to observe the nearly full Moon as it passes Mars on the evening of December 17. Both objects closely follow the Sun’s apparent path through the stars, called the ecliptic. This time, however, they’ll be quite close, only about 1 degree apart. That distance is twice the diameterContinue reading "The Moon passes Mars: This Week in Astronomy with Dave Eicher"
Thirteen years before any other woman joined the National Advisory Committee for Aeronautics – or the NACA, NASA’s predecessor – in a technical role, a young lab assistant named Pearl Young was making waves in the agency. Her legacy as an outspoken and persistent advocate for herself and her team would pave the way for women inContinue reading "Pearl Young, the first woman to work in a technical role at NASA, overcame barriers and ‘raised hell’"
The post Pearl Young, the first woman to work in a
NASA has begun blueprinting the Endurance rover to traverse the gigantic South Pole–Aitken (SPA) basin, a wonderland of promising geological surprises.
NASA has begun blueprinting the Endurance rover to traverse the gigantic South Pole–Aitken (SPA) basin, a wonderland of promising geological surprises.
Massimo Tamajo from Syracuse, Sicily, Italy A Last Quarter Moon lies above an erupting Mount Etna in this shot taken in the early morning of July 28, 2024. The imager used a Nikon Z 6II camera and 150mm lens at f/8 to take a 2-second exposure at ISO 2000.
The post Erupting at the Moon appeared first on Astronomy Magazine.
Massimo Tamajo from Syracuse, Sicily, Italy A Last Quarter Moon lies above an erupting Mount Etna in this shot taken in the early morning of July 28, 2024. The imager used a Nikon Z 6II camera and 150mm lens at f/8 to take a 2-second exposure at ISO 2000.
What became of the discarded lunar modules from the Apollo missions? James JarvisSan Francisco, California All but one of the Apollo program’s used lunar modules either crashed into the Moon’s surface or burned up in Earth’s atmosphere. Apollo 10’s lunar module, Snoopy, is still out there, drifting aimlessly around the solar system, waiting for someContinue reading "What happened to the jettisoned Apollo lunar modules? "
The post What happened to the jettisoned Apollo lunar modules? appeared fi
What became of the discarded lunar modules from the Apollo missions? James JarvisSan Francisco, California All but one of the Apollo program’s used lunar modules either crashed into the Moon’s surface or burned up in Earth’s atmosphere. Apollo 10’s lunar module, Snoopy, is still out there, drifting aimlessly around the solar system, waiting for someContinue reading "What happened to the jettisoned Apollo lunar modules? "
Citing environmental concerns, 120 astronomers and researchers implored the Federal Communications Commission (FCC) in an Oct. 24 letter to halt launches of internet satellites like SpaceX’s Starlink. The letter, which was organized by the Public Interest Research Group, also urged FCC Space Bureau Chief Julie Kearney to investigate the potential negative environmental and health impactsContinue reading "Astronomers urge FCC to research impacts of space junk"
The post Astronomers urge FCC to res
Citing environmental concerns, 120 astronomers and researchers implored the Federal Communications Commission (FCC) in an Oct. 24 letter to halt launches of internet satellites like SpaceX’s Starlink. The letter, which was organized by the Public Interest Research Group, also urged FCC Space Bureau Chief Julie Kearney to investigate the potential negative environmental and health impactsContinue reading "Astronomers urge FCC to research impacts of space junk"
In this episode, Dave Eicher invites you to observe the nearly full Moon as it passes Mars on the evening of December 17. Both objects closely follow the Sun’s apparent path through the stars, called the ecliptic. This time, however, they’ll be quite close, only about 1 degree apart. That distance is twice the diameterContinue reading "The Moon passes Mars: This Week in Astronomy with Dave Eicher"
The post The Moon passes Mars: This Week in Astronomy with Dave Eicher appeared first on Astronomy
In this episode, Dave Eicher invites you to observe the nearly full Moon as it passes Mars on the evening of December 17. Both objects closely follow the Sun’s apparent path through the stars, called the ecliptic. This time, however, they’ll be quite close, only about 1 degree apart. That distance is twice the diameterContinue reading "The Moon passes Mars: This Week in Astronomy with Dave Eicher"
SpaceX's 31st robotic Dragon cargo capsule splashed down off the Florida coast today (Dec. 17), a day after undocking from the International Space Station.
SpaceX's 31st robotic Dragon cargo capsule splashed down off the Florida coast today (Dec. 17), a day after undocking from the International Space Station.
The Event Horizon Telescope, which captured the first image of a black hole, has done it again. The Earth-sized telescope spotted an unexpected explosion from the same supermassive black hole.
The Event Horizon Telescope, which captured the first image of a black hole, has done it again. The Earth-sized telescope spotted an unexpected explosion from the same supermassive black hole.
Saturn's rings might not be younger than the dinosaurs as recently suggested, but nearly as old as the giant planet itself at billions of years in age, a new study says.
Saturn's rings might not be younger than the dinosaurs as recently suggested, but nearly as old as the giant planet itself at billions of years in age, a new study says.
Although it’s visible all year round from mid- and high-northern latitudes, now is a great time of the year for newcomers to stargazing to look for and find the famous star pattern known as the Big Dipper or the Plough. Many people grow up believing the Big Dipper is a constellation, but it’s not. It’sContinue reading "Explore the Big Dipper this winter"
The post Explore the Big Dipper this winter appeared first on Astronomy Magazine.
Although it’s visible all year round from mid- and high-northern latitudes, now is a great time of the year for newcomers to stargazing to look for and find the famous star pattern known as the Big Dipper or the Plough. Many people grow up believing the Big Dipper is a constellation, but it’s not. It’sContinue reading "Explore the Big Dipper this winter"
Author(s): Fabian GrusdtBy controlling the motion and interaction of individual atoms in a cold-atom ensemble, researchers have produced a correlated topological state of matter, called a fractional quantum Hall state.[Physics 17, 178] Published Mon Dec 16, 2024
By controlling the motion and interaction of individual atoms in a cold-atom ensemble, researchers have produced a correlated topological state of matter, called a fractional quantum Hall state.
Beginning in late November during the waning phases of the Moon, and then again in late December, you can investigate the possibility of a curious optical phenomenon. It involves a bright planet passing by a large and diffuse star cluster visible with the naked eye. On the evening of June 13, 2023, I went outContinue reading "The Red Planet lights up a famous star cluster this month"
The post The Red Planet lights up a famous star cluster this month appeared first on Astronomy Magazine.
Beginning in late November during the waning phases of the Moon, and then again in late December, you can investigate the possibility of a curious optical phenomenon. It involves a bright planet passing by a large and diffuse star cluster visible with the naked eye. On the evening of June 13, 2023, I went outContinue reading "The Red Planet lights up a famous star cluster this month"
Donald Trump has nominated billionaire private astronaut Jared Isaacman to lead NASA. What do we know about the potential next administrator of America’s space agency?
Donald Trump has nominated billionaire private astronaut Jared Isaacman to lead NASA. What do we know about the potential next administrator of America’s space agency?
"'War of the Worlds' has become a huge part of local folklore in that part of the state, so anything touching on the subject of UFOs is going to remind people of the broadcast."
"'War of the Worlds' has become a huge part of local folklore in that part of the state, so anything touching on the subject of UFOs is going to remind people of the broadcast."
Abhijit Patil, taken from Alabama Hills, California The jewels of the northern Milky Way stand out above this rock formation — from the Pleiades (M45) and the California Nebula (NGC 1499) on the right up to the Heart and Soul Nebulae (IC 1805 and IC 1848). At top center lies the Andromeda Galaxy (M31), ourContinue reading "The winter Milky Way"
The post The winter Milky Way appeared first on Astronomy Magazine.
Abhijit Patil, taken from Alabama Hills, California The jewels of the northern Milky Way stand out above this rock formation — from the Pleiades (M45) and the California Nebula (NGC 1499) on the right up to the Heart and Soul Nebulae (IC 1805 and IC 1848). At top center lies the Andromeda Galaxy (M31), ourContinue reading "The winter Milky Way"
NASA astronaut Don Pettit's latest photography from the International Space Station showcases not only his visual prowess, but also his engineering skills.
NASA astronaut Don Pettit's latest photography from the International Space Station showcases not only his visual prowess, but also his engineering skills.
Off the coast of Baja California in December 2022, sun sparkled over the rippling sea as waves sloshed around the USS Portland dock ship. Navy officials on the deck scrutinized the sky in search of a sign. The glow appeared suddenly. A tiny spot at first, it gradually grew to a round circle falling atContinue reading "OPINION: An aerospace expert on NASA’s Orion crew capsule heat shield issues during Artemis I"
The post OPINION: An aerospace expert on NASA’s Orion crew capsule heat shield issues
SpaceX launched an advanced GPS satellite to orbit Monday night (Dec. 16), on a mission that the U.S. Space Force said showcased a new level of responsiveness and readiness.
SpaceX launched an advanced GPS satellite to orbit Monday night (Dec. 16), on a mission that the U.S. Space Force said showcased a new level of responsiveness and readiness.
Author(s): Mark BuchananMeasuring gravitational analogues of quantum phenomena could lead to high-precision measurement of gravitational forces, according to a theoretical proposal.[Physics 17, 179] Published Fri Dec 13, 2024
Measuring gravitational analogues of quantum phenomena could lead to high-precision measurement of gravitational forces, according to a theoretical proposal.
To find advanced civilizations, you don’t need to go hunting for megastructures or hypothetical space probes. You could find civilizations just a few centuries ahead of us by looking for a key element: hydrogen. While hydrogen is everywhere, not all of it is of the same type. Several hydrogen isotopes exist, and deuterium is oneContinue reading "Could deuterium be the key to finding aliens? "
The post Could deuterium be the key to finding aliens? appeared first on Astronomy Magazine.
To find advanced civilizations, you don’t need to go hunting for megastructures or hypothetical space probes. You could find civilizations just a few centuries ahead of us by looking for a key element: hydrogen. While hydrogen is everywhere, not all of it is of the same type. Several hydrogen isotopes exist, and deuterium is oneContinue reading "Could deuterium be the key to finding aliens? "
At its current solar maximum, our Sun has been pretty busy of late, flinging parts of itself at Earth and raising concerns about effects on satellites and power grids while also gracing us with incredible aurorae. Solar and space-weather scientists have been busy too. They’ve just released a mammoth, nearly 800-page report to set prioritiesContinue reading "What’s in the National Academies’ Decadal Survey for Solar and Space Physics?"
The post What’s in the National Academies’ Decadal Survey for
At its current solar maximum, our Sun has been pretty busy of late, flinging parts of itself at Earth and raising concerns about effects on satellites and power grids while also gracing us with incredible aurorae. Solar and space-weather scientists have been busy too. They’ve just released a mammoth, nearly 800-page report to set prioritiesContinue reading "What’s in the National Academies’ Decadal Survey for Solar and Space Physics?"
Friday, December 13The bright gibbous Moon passes 4° north of Uranus at 5 A.M. EST. At that time, the Moon sits in Aries the Ram, while Uranus is just over the border in far western Taurus the Bull. The two set together around 5 A.M. local time. You might have better luck spotting the iceContinue reading "The Sky This Week from December 13 to 20: 2024’s last Full Moon"
The post The Sky This Week from December 13 to 20: 2024’s last Full Moon appeared first on Astronomy Magazine.
Friday, December 13The bright gibbous Moon passes 4° north of Uranus at 5 A.M. EST. At that time, the Moon sits in Aries the Ram, while Uranus is just over the border in far western Taurus the Bull. The two set together around 5 A.M. local time. You might have better luck spotting the iceContinue reading "The Sky This Week from December 13 to 20: 2024’s last Full Moon"
By doubling the number of known "dark comets," astronomers have been able to split them into two camps depending on their location in the solar system.
By doubling the number of known "dark comets," astronomers have been able to split them into two camps depending on their location in the solar system.
The National Transportation Safety Board (NTSB) and FAA oversee investigations of aircraft accidents in U.S. airspace. But what happens when a crash occurs hundreds of millions of miles away in outer space? Engineers with NASA’s Jet Propulsion Laboratory (JPL) in California and uncrewed aircraft systems (UAS) manufacturer Aerovironment, a prominent aerospace and defense contractor, areContinue reading "NASA conducts first otherworldly aircraft accident investigation"
The post NASA conducts first
The National Transportation Safety Board (NTSB) and FAA oversee investigations of aircraft accidents in U.S. airspace. But what happens when a crash occurs hundreds of millions of miles away in outer space? Engineers with NASA’s Jet Propulsion Laboratory (JPL) in California and uncrewed aircraft systems (UAS) manufacturer Aerovironment, a prominent aerospace and defense contractor, areContinue reading "NASA conducts first otherworldly aircraft accident investigation"
Violent superflares erupt from sun-like stars about once a century, far more frequently than previously expected. As a civilization around such a star, what does this mean for us?
Violent superflares erupt from sun-like stars about once a century, far more frequently than previously expected. As a civilization around such a star, what does this mean for us?
Solar flares are bright flashes of light from the Sun that release large amounts of electromagnetic radiation. And while normal flares can release as much as 1025 joules of energy, so-called superflares, observed on other stars, are up to 10,000 times more powerful. Even normal solar flares and the charged particles that often accompany themContinue reading "Sun-like stars experience superflares roughly once per century"
The post Sun-like stars experience superflares roughly once per century app
Solar flares are bright flashes of light from the Sun that release large amounts of electromagnetic radiation. And while normal flares can release as much as 1025 joules of energy, so-called superflares, observed on other stars, are up to 10,000 times more powerful. Even normal solar flares and the charged particles that often accompany themContinue reading "Sun-like stars experience superflares roughly once per century"
Author(s): Matteo RiniAstrophysicist and science communicator Neil deGrasse Tyson shares some thoughts on why and how scientists should communicate to the public.[Physics 17, 175] Published Thu Dec 12, 2024
Author(s): Ryan WilkinsonResearchers have devised a way to use atoms in optical lattices to model high-temperature superconductors, whose behavior is not yet fully understood.[Physics 17, s144] Published Thu Dec 12, 2024
Author(s): Elizabeth FernandezA simplified model of how yarns interact shows that a piece of knitted fabric can have many stable resting states depending on its history of deformation.[Physics 17, s153] Published Thu Dec 12, 2024
A simplified model of how yarns interact shows that a piece of knitted fabric can have many stable resting states depending on its history of deformation.
A documentary about the life and love of America's first woman in space will premiere at the Sundance Film Festival. "SALLY," from National Geographic, reveals the legacy of astronaut Sally Ride.
A documentary about the life and love of America's first woman in space will premiere at the Sundance Film Festival. "SALLY," from National Geographic, reveals the legacy of astronaut Sally Ride.
The fate of multiple realities is in the hands of two Boimlers and a lot of Harry Kims in 'Star Trek: Lower Decks' season 5, episode 9 "Fissure Quest".
The fate of multiple realities is in the hands of two Boimlers and a lot of Harry Kims in 'Star Trek: Lower Decks' season 5, episode 9 "Fissure Quest".
The constellation Taurus the Bull is an easy one to find in the Northern Hemisphere’s fall and winter skies. It stands opposite the Sun at the beginning of December. The head of the figure is a large V of stars, and standing out among them is the ruddy 1st-magnitude star Aldebaran (Alpha [α] Tauri) markingContinue reading "The best deep-sky targets in Taurus"
The post The best deep-sky targets in Taurus appeared first on Astronomy Magazine.
The constellation Taurus the Bull is an easy one to find in the Northern Hemisphere’s fall and winter skies. It stands opposite the Sun at the beginning of December. The head of the figure is a large V of stars, and standing out among them is the ruddy 1st-magnitude star Aldebaran (Alpha [α] Tauri) markingContinue reading "The best deep-sky targets in Taurus"
Astronomers have discovered a new vast Odd Radio Circle, or "ORC," that could help determine the origin of this strange galaxy-encompassing phenomenon.
Astronomers have discovered a new vast Odd Radio Circle, or "ORC," that could help determine the origin of this strange galaxy-encompassing phenomenon.
"The Moonwalkers" is landing in Houston. More than a year after the immersive film debuted in London, "The Moonwalkers: A Journey with Tom Hanks" is set to make its US premiere at Space Center Houston.
"The Moonwalkers" is landing in Houston. More than a year after the immersive film debuted in London, "The Moonwalkers: A Journey with Tom Hanks" is set to make its US premiere at Space Center Houston.
Ingenuity may never fly above the surface of Mars again, but the downed helicopter is otherwise healthy and could serve as a weather station for decades, JPL says.
Ingenuity may never fly above the surface of Mars again, but the downed helicopter is otherwise healthy and could serve as a weather station for decades, JPL says.
Two giant asteroids that struck Earth about 36 million years ago did not cause any long-lasting shifts to our planet's climate, according to new research.
Two giant asteroids that struck Earth about 36 million years ago did not cause any long-lasting shifts to our planet's climate, according to new research.
Author(s): Rachel BerkowitzStudies of influenza A’s unusual propulsion strategy suggest that drugs could target a critical protein.[Physics 17, 177] Published Wed Dec 11, 2024
Author(s): Charles DayCalculations have uncovered two previously unknown forces that act on nonspherical particles in a sound field.[Physics 17, s155] Published Wed Dec 11, 2024
NASA has developed special probes that will fly aboard F-15B jets trailing closely behind its X-59 "quiet" supersonic jet in order to measure the shock waves it produces.
NASA has developed special probes that will fly aboard F-15B jets trailing closely behind its X-59 "quiet" supersonic jet in order to measure the shock waves it produces.
Emanuele La Barbera, taken from Piano Battaglia, Sicily, Italy The Pleiades (M45) star cluster is one of the most famous naked-eye objects in the sky, but only deep photographic exposures reveal the complexity of the fine strands of dust surrounding the stars. This imager took 28 hours of exposure with a 3.4-inch scope with aContinue reading "Hair of the Pleiades"
The post Hair of the Pleiades appeared first on Astronomy Magazine.
Emanuele La Barbera, taken from Piano Battaglia, Sicily, Italy The Pleiades (M45) star cluster is one of the most famous naked-eye objects in the sky, but only deep photographic exposures reveal the complexity of the fine strands of dust surrounding the stars. This imager took 28 hours of exposure with a 3.4-inch scope with aContinue reading "Hair of the Pleiades"
Using the Large Hadron Collider and the ALICE detector scientists have found the heavist antimatter particle yet, generated in Big Bang like conditions.
Using the Large Hadron Collider and the ALICE detector scientists have found the heavist antimatter particle yet, generated in Big Bang like conditions.
We have only one example of biology forming in the universe – life on Earth. But what if life can form in other ways? How do you look for alien life when you don’t know what alien life might look like? These questions are preoccupying astrobiologists, who are scientists who look for life beyond Earth. Astrobiologists haveContinue reading "How we might look for life in the universe — even if we can’t recognize it"
The post How we might look for life in the universe — even if we can’t recognize it
We have only one example of biology forming in the universe – life on Earth. But what if life can form in other ways? How do you look for alien life when you don’t know what alien life might look like? These questions are preoccupying astrobiologists, who are scientists who look for life beyond Earth. Astrobiologists haveContinue reading "How we might look for life in the universe — even if we can’t recognize it"
A SpaceX Falcon 9 rocket illuminated the Christmas tree during the holiday lighting ceremony that coincided with a Starlink satellite launch at Vandenberg Space Force Base on Dec. 4.
A SpaceX Falcon 9 rocket illuminated the Christmas tree during the holiday lighting ceremony that coincided with a Starlink satellite launch at Vandenberg Space Force Base on Dec. 4.
One possible reason why we haven't found any intelligent life in the cosmos the Great Filter argument, which says that very few civilizations make it to the advanced spacefaring stage.
One possible reason why we haven't found any intelligent life in the cosmos the Great Filter argument, which says that very few civilizations make it to the advanced spacefaring stage.
PRESS RELEASEFor immediate release Contact:Erik Spangenberg(203)-550-3196erik@firecrown.com CHATTANOOGA, TN — The Space Store, an e-commerce retailer specializing in space-themed merchandise, has opened its first physical retail space in downtown Chattanooga. The Space Store got its start in 1996, as one of the first e-commerce businesses on the internet. For the past 28 years, The Space StoreContinue reading "The largest space merch retailer in the world opens its first brick-and-mortar retail
NASA is developing autonomous software to recognize faults and hazards on worlds like Europa, and prevent or fix them without having to await commands from Earth.
NASA is developing autonomous software to recognize faults and hazards on worlds like Europa, and prevent or fix them without having to await commands from Earth.
Author(s): Charles DayExperiments with colloidal particles have uncovered conditions where an intermediate layer that separates a crystallizing liquid from its solid forms.[Physics 17, s149] Published Tue Dec 10, 2024
A longtime amateur astronomer shares his favorite apps for enjoying time under the starry skies.
The post Best astronomy apps for stargazing in 2024 appeared first on Astronomy Magazine.
A "bizarre" E-shaped aurora was recently photographed dancing in the sky above Alaska. The unusual light show was caused by rare black auroras, a.k.a. anti-auroras, which catapult charged particles from the sun back out of Earth's atmosphere and into space.
A "bizarre" E-shaped aurora was recently photographed dancing in the sky above Alaska. The unusual light show was caused by rare black auroras, a.k.a. anti-auroras, which catapult charged particles from the sun back out of Earth's atmosphere and into space.
It’s back: Astronomy magazine’s free downloadable Sky Guide, your preview of everything happening in the sky next year. Mars opens 2025 by reaching opposition the night of Jan. 15/16, when it shines brighter and appears larger through a telescope than at any time since December 2022. You’ll find it in Gemini, near the heads ofContinue reading "A look ahead to the sky next year: Sky Guide 2025"
The post A look ahead to the sky next year: Sky Guide 2025 appeared first on Astronomy Magazine.
It’s back: Astronomy magazine’s free downloadable Sky Guide, your preview of everything happening in the sky next year. Mars opens 2025 by reaching opposition the night of Jan. 15/16, when it shines brighter and appears larger through a telescope than at any time since December 2022. You’ll find it in Gemini, near the heads ofContinue reading "A look ahead to the sky next year: Sky Guide 2025"
Author(s): Matteo Rini and Michael SchirberResearchers at Google Quantum AI have demonstrated “below-threshold” error correction, a necessary condition for building noise-resistant quantum computers that are sufficiently large to perform useful computations.[Physics 17, 176] Published Mon Dec 09, 2024
Researchers at Google Quantum AI have demonstrated “below-threshold” error correction, a necessary condition for building noise-resistant quantum computers that are sufficiently large to perform useful computations.
The Hubble Space Telescope has peered deeper than ever before into the heart of the supermassive black hole-powered quasar 3C, 273 spotting "weird" structures.
The Hubble Space Telescope has peered deeper than ever before into the heart of the supermassive black hole-powered quasar 3C, 273 spotting "weird" structures.
Scientists have found that the moon's oldest crater is rounder than we thought, which may mean future moon astronauts in the region could find and study rocks from deep within the moon's mantle or crust.
Scientists have found that the moon's oldest crater is rounder than we thought, which may mean future moon astronauts in the region could find and study rocks from deep within the moon's mantle or crust.
Is it possible to view Pluto from a backyard telescope? Ethan SpykerWadsworth, Ohio If I’m being honest, Pluto is difficult for an amateur astronomer to see. A standard 8-inch telescope just won’t do the trick. That’s because Pluto hasn’t been brighter than 14th magnitude since the fall of 2004. It reached perihelion (its closest approach toContinue reading "Can you view Pluto in a backyard telescope?"
The post Can you view Pluto in a backyard telescope? appeared first on Astronomy Magazine.
Is it possible to view Pluto from a backyard telescope? Ethan SpykerWadsworth, Ohio If I’m being honest, Pluto is difficult for an amateur astronomer to see. A standard 8-inch telescope just won’t do the trick. That’s because Pluto hasn’t been brighter than 14th magnitude since the fall of 2004. It reached perihelion (its closest approach toContinue reading "Can you view Pluto in a backyard telescope?"
NASA's TESS satellite has discovered a Neptune-sized exoplanet closely orbiting its host star. It's just the fourth object of its kind ever identified.
NASA's TESS satellite has discovered a Neptune-sized exoplanet closely orbiting its host star. It's just the fourth object of its kind ever identified.
Author(s): Rachel BerkowitzThrough its interactions with a crystal, light becomes an opaque object—an effect that could be harnessed in applications.[Physics 17, 174] Published Mon Dec 09, 2024
In this episode, Dave Eicher invites you to observe the Geminid meteor shower, which will peak during the early morning hours of December 14. The best time to view them is after midnight, but you may see some in the evening hours as well. Get comfortable and look straight overhead for fast moving (and quicklyContinue reading "This Week in Astronomy with Dave Eicher: the Geminid meteor shower"
The post This Week in Astronomy with Dave Eicher: the Geminid meteor shower appeared first on Astronomy
In this episode, Dave Eicher invites you to observe the Geminid meteor shower, which will peak during the early morning hours of December 14. The best time to view them is after midnight, but you may see some in the evening hours as well. Get comfortable and look straight overhead for fast moving (and quicklyContinue reading "This Week in Astronomy with Dave Eicher: the Geminid meteor shower"
'Hubble was right!' The largest cosmic survey from the James Webb Space Telescope indicates scientists may need another ingredient in their cosmic recipe.
'Hubble was right!' The largest cosmic survey from the James Webb Space Telescope indicates scientists may need another ingredient in their cosmic recipe.
In 1874, James Nasmyth and James Carpenter published a remarkable book: The Moon: Considered as a Planet, a World, and a Satellite. Lavishly illustrated with spectacular images of lunar features based on their own observations and exquisite plaster models, it served as a platform for the authors to advance their views on the nature andContinue reading "The Moon as it never was"
The post The Moon as it never was appeared first on Astronomy Magazine.
In 1874, James Nasmyth and James Carpenter published a remarkable book: The Moon: Considered as a Planet, a World, and a Satellite. Lavishly illustrated with spectacular images of lunar features based on their own observations and exquisite plaster models, it served as a platform for the authors to advance their views on the nature andContinue reading "The Moon as it never was"
Studying how much the Uranian moons sway in orbit may reveal whether or not they have oceans inside of them. NASA is in the early stages of planning a mission to do just that.
Studying how much the Uranian moons sway in orbit may reveal whether or not they have oceans inside of them. NASA is in the early stages of planning a mission to do just that.
Astronomers have discovered that large flows of cold gas created by collisions between galaxies in the early universe may have forged some of the most monstrous star systems.
Astronomers have discovered that large flows of cold gas created by collisions between galaxies in the early universe may have forged some of the most monstrous star systems.
A countdown is underway at NASA's Florida spaceport, ticking down until the public can experience a rocket engine test. Kennedy Space Center Visitor Complex has announced The Gantry at LC-39.
A countdown is underway at NASA's Florida spaceport, ticking down until the public can experience a rocket engine test. Kennedy Space Center Visitor Complex has announced The Gantry at LC-39.
On Sunday (Dec. 8), the moon will pass near Saturn, sharing the same right ascension in an event known as a conjunction. Viewers can expect to see the moon near Saturn shortly after sunset.
On Sunday (Dec. 8), the moon will pass near Saturn, sharing the same right ascension in an event known as a conjunction. Viewers can expect to see the moon near Saturn shortly after sunset.
A proposed mission known as Uranus Orbiter and Probe would conduct a multiyear orbital tour to yield knowledge of ice giants in general and the Uranus system in particular.
A proposed mission known as Uranus Orbiter and Probe would conduct a multiyear orbital tour to yield knowledge of ice giants in general and the Uranus system in particular.
On Episode 139 of This Week In Space, Rod and Tariq talk with Leonard David to cover a broad swath, from the choice for the NASA Administrator to new delays for the Artemis program to UFOs/UAPs!
On Episode 139 of This Week In Space, Rod and Tariq talk with Leonard David to cover a broad swath, from the choice for the NASA Administrator to new delays for the Artemis program to UFOs/UAPs!
Space weather experts warn that solar activity will persist or even increase after solar maximum has ended and we enter a phase of the solar cycle dubbed the "battle zone."
Space weather experts warn that solar activity will persist or even increase after solar maximum has ended and we enter a phase of the solar cycle dubbed the "battle zone."
The Arctic's ice cover could dip below a crucial threshold as soon as 2027, and will do so inevitably in the next 20 years if greenhouse gas emissions continue, scientists warn.
The Arctic's ice cover could dip below a crucial threshold as soon as 2027, and will do so inevitably in the next 20 years if greenhouse gas emissions continue, scientists warn.
Scientists may have discovered a limit to how massive black holes can grow. If they're right, we may have already discovered the largest possible ultramassive black hole!
Scientists may have discovered a limit to how massive black holes can grow. If they're right, we may have already discovered the largest possible ultramassive black hole!
Santiago Ramos Avila, taken from Moratalla, Spain The dust clouds in this field near the border of Libra and Ophiuchus take on the appearance of an eagle, with a bright star (HD 142269) as its eye. The brighter emission in this field is associated with LBN 10, and the darker clouds — especially around theContinue reading "A dusty eagle"
The post A dusty eagle appeared first on Astronomy Magazine.
Santiago Ramos Avila, taken from Moratalla, Spain The dust clouds in this field near the border of Libra and Ophiuchus take on the appearance of an eagle, with a bright star (HD 142269) as its eye. The brighter emission in this field is associated with LBN 10, and the darker clouds — especially around theContinue reading "A dusty eagle"
Jupiter will reach opposition on Dec. 7, rising opposite of the sun as seen from Earth. It will also make its closest approach to us, appearing brighter in our sky.
Jupiter will reach opposition on Dec. 7, rising opposite of the sun as seen from Earth. It will also make its closest approach to us, appearing brighter in our sky.
A map of the universe in gravitational waves could reveal "hidden" black holes, supermassive black hole collisions, and the large-scale structure of the cosmos.
A map of the universe in gravitational waves could reveal "hidden" black holes, supermassive black hole collisions, and the large-scale structure of the cosmos.
Author(s): Mark BuchananA proposed remote-sensing scheme could potentially probe targets hundreds of kilometers away and uses one of the strangest quantum properties of light.[Physics 17, 173] Published Fri Dec 06, 2024
A proposed remote-sensing scheme could potentially probe targets hundreds of kilometers away and uses one of the strangest quantum properties of light.
The NASA project NEOWISE, which has given astronomers a detailed view of near-Earth objects – some of which could strike the Earth – ended its mission and burned on re-entering the atmosphere after over a decade. On a clear night, the sky is full of bright objects – from stars, large planets and galaxies toContinue reading "A look back at NEOWISE, the NASA mission that cataloged objects around Earth for over a decade"
The post A look back at NEOWISE, the NASA mission that cataloged objects aroun
Iranian state media claimed one of the country's Simorgh rockets launched its largest payload yet, sending three spacecraft into low-Earth orbit on Dec. 6.
Iranian state media claimed one of the country's Simorgh rockets launched its largest payload yet, sending three spacecraft into low-Earth orbit on Dec. 6.
Although it completed its mission in July, NASA’s Near-Earth Object Wide-Field Infrared Survey Explorer (NEOWISE) still has interesting archival data covering the solar system thanks to the team at the Infrared Processing & Analysis Center (IPAC) at Caltech. After the spacecraft burned up in the atmosphere in November, IPAC completed a final data release ofContinue reading "NASA releases new infrared images from retired NEOWISE mission"
The post NASA releases new infrared images from retired
Although it completed its mission in July, NASA’s Near-Earth Object Wide-Field Infrared Survey Explorer (NEOWISE) still has interesting archival data covering the solar system thanks to the team at the Infrared Processing & Analysis Center (IPAC) at Caltech. After the spacecraft burned up in the atmosphere in November, IPAC completed a final data release ofContinue reading "NASA releases new infrared images from retired NEOWISE mission"
For the second time this year, NASA has pushed back its timeline to land the first Americans on the Moon since the Apollo era. NASA Administrator Bill Nelson on Thursday revealed that due to an issue with the heat shield on NASA’s Orion capsule discovered during the 2022 Artemis 1 test mission, the Artemis 3Continue reading "NASA pushes first Moon landing since Apollo era to 2027"
The post NASA pushes first Moon landing since Apollo era to 2027 appeared first on Astronomy Magazine.
For the second time this year, NASA has pushed back its timeline to land the first Americans on the Moon since the Apollo era. NASA Administrator Bill Nelson on Thursday revealed that due to an issue with the heat shield on NASA’s Orion capsule discovered during the 2022 Artemis 1 test mission, the Artemis 3Continue reading "NASA pushes first Moon landing since Apollo era to 2027"
The December Geminids — one of the best meteor showers of the year — will be adversely affected by bright moonlight, appearing the on the night before the full moon.
The December Geminids — one of the best meteor showers of the year — will be adversely affected by bright moonlight, appearing the on the night before the full moon.
Data from a now defunct NASA spacecraft has revealed a massive internal reservior of organic material within the second wettest solar system body, Ceres.
Data from a now defunct NASA spacecraft has revealed a massive internal reservior of organic material within the second wettest solar system body, Ceres.
The Zwicky Transient Facility has reached an incredible milestone, classifying over 10,000 supernovas, cosmic explosions that mark the death of massive stars.
The Zwicky Transient Facility has reached an incredible milestone, classifying over 10,000 supernovas, cosmic explosions that mark the death of massive stars.
Friday, December 6Asteroid 15 Eunomia is making its way through central Auriga this month, passing numerous deep-sky objects along the way. By 9 P.M. local time this evening, the asteroid is nearly 50° high in the eastern sky. It’s skimming close to 5th-magnitude Phi (φ) Aurigae, just 1° east of the star tonight. Now magnitudeContinue reading "The Sky This Week from December 6 to 13: Jupiter reaches opposition"
The post The Sky This Week from December 6 to 13: Jupiter reaches opposition appeare
Friday, December 6Asteroid 15 Eunomia is making its way through central Auriga this month, passing numerous deep-sky objects along the way. By 9 P.M. local time this evening, the asteroid is nearly 50° high in the eastern sky. It’s skimming close to 5th-magnitude Phi (φ) Aurigae, just 1° east of the star tonight. Now magnitudeContinue reading "The Sky This Week from December 6 to 13: Jupiter reaches opposition"
President-elect Donald Trump has picked private astronaut and billionaire tech entrepreneur Jared Isaacman as the administrator of NASA. Trump confirmed the nomination on Wednesday in a post on X. “Jared will drive NASA’s mission of discovery and inspiration, paving the way for groundbreaking achievements in Space science, technology, and exploration,” Trump wrote in the post. “OverContinue reading "Trump chooses first private spacewalker Jared Isaacman as NASA head"
The post Trump chooses first
President-elect Donald Trump has picked private astronaut and billionaire tech entrepreneur Jared Isaacman as the administrator of NASA. Trump confirmed the nomination on Wednesday in a post on X. “Jared will drive NASA’s mission of discovery and inspiration, paving the way for groundbreaking achievements in Space science, technology, and exploration,” Trump wrote in the post. “OverContinue reading "Trump chooses first private spacewalker Jared Isaacman as NASA head"
A small asteroid lit up the skies over northern Siberia Wednesday (Dec. 4) after burning up in Earth's atmosphere in a "spectacular" (yet harmless) fireball.
A small asteroid lit up the skies over northern Siberia Wednesday (Dec. 4) after burning up in Earth's atmosphere in a "spectacular" (yet harmless) fireball.
In a study published today in Science, researchers say they have solved a climate enigma — the inexplicable surge in global temperature in 2023, rising faster than climate models predicted. By analyzing satellite data and weather records, a team of climatologists in Germany have found that the culprit is likely fewer clouds at low altitudesContinue reading "Low-level clouds play surprise role in global warming"
The post Low-level clouds play surprise role in global warming appeared first on Astr
In a study published today in Science, researchers say they have solved a climate enigma — the inexplicable surge in global temperature in 2023, rising faster than climate models predicted. By analyzing satellite data and weather records, a team of climatologists in Germany have found that the culprit is likely fewer clouds at low altitudesContinue reading "Low-level clouds play surprise role in global warming"
Curiosity has just finished the latest leg of its 12-year Mars mission and will now set out to explore miles of web-like surface features left behind by ancient water on the Red Planet. The zig-zagging rocks could also provide clues about whether Mars once harbored extraterrestrial life.
Curiosity has just finished the latest leg of its 12-year Mars mission and will now set out to explore miles of web-like surface features left behind by ancient water on the Red Planet. The zig-zagging rocks could also provide clues about whether Mars once harbored extraterrestrial life.
China debuted its new launch vehicle Long March-12, delivering two experimental satellites into orbit and marking the inaugural flight from the country's first commercial spaceport.
China debuted its new launch vehicle Long March-12, delivering two experimental satellites into orbit and marking the inaugural flight from the country's first commercial spaceport.
After years of effort, astronomers at the European Southern Observatory (ESO) announced they managed to capture the first closeup image of a star beyond our galaxy. This remarkable achievement offers more than just stunning visuals — it provides a rare glimpse into the final moments of a star that will inevitably explode as a spectacularContinue reading "This distant star is about to die — and astronomers caught it in close-up"
The post This distant star is about to die — and astronomers caught
After years of effort, astronomers at the European Southern Observatory (ESO) announced they managed to capture the first closeup image of a star beyond our galaxy. This remarkable achievement offers more than just stunning visuals — it provides a rare glimpse into the final moments of a star that will inevitably explode as a spectacularContinue reading "This distant star is about to die — and astronomers caught it in close-up"
The staggering deaths of over 300 African elephants in early 2020 was most likely due to toxins in water proliferated to exceptional levels by climate extremes, according to a fresh analysis of decade's worth of satellite data.
The staggering deaths of over 300 African elephants in early 2020 was most likely due to toxins in water proliferated to exceptional levels by climate extremes, according to a fresh analysis of decade's worth of satellite data.
Author(s): Ryan WilkinsonScientists have devised a way to use current gravitational-wave detectors to observe permanent deformations of spacetime caused by certain supernovae.[Physics 17, s152] Published Thu Dec 05, 2024
Since Donald Trump’s recent electoral victory, rumors and speculation have circulated that NASA's giant moon rocket, the Space Launch System (SLS), could be under threat.
Since Donald Trump’s recent electoral victory, rumors and speculation have circulated that NASA's giant moon rocket, the Space Launch System (SLS), could be under threat.
I’m in love. I don’t often begin a review by saying that a product has wooed me, but the Celestron Origin Home Observatory has done just that.Not that I’m surprised. Since it first introduced the venerable C8 Schmidt-Cassegrain in 1970, Celestron has established itself as a leading manufacturer of cutting-edge telescopes and accessories for amateurContinue reading "REVIEW: The Celestron Origin is the smartscope powerhouse we’ve been waiting for"
The post REVIEW: The Celestron Origin is the smart
I’m in love. I don’t often begin a review by saying that a product has wooed me, but the Celestron Origin Home Observatory has done just that.Not that I’m surprised. Since it first introduced the venerable C8 Schmidt-Cassegrain in 1970, Celestron has established itself as a leading manufacturer of cutting-edge telescopes and accessories for amateurContinue reading "REVIEW: The Celestron Origin is the smartscope powerhouse we’ve been waiting for"
A tiny asteroid measuring some 27 inches (70 cm) wide was detected on a collision course with Earth above Siberia. It is expected to burn up harmlessly on the morning of Dec. 3, 2024.
A tiny asteroid measuring some 27 inches (70 cm) wide was detected on a collision course with Earth above Siberia. It is expected to burn up harmlessly on the morning of Dec. 3, 2024.
Using the JWST astronomers have dived deeper into a cosmic spiderweb called the Spiderweb protocluster located 10 billion light-years away than ever before.
Using the JWST astronomers have dived deeper into a cosmic spiderweb called the Spiderweb protocluster located 10 billion light-years away than ever before.
Author(s): Susan CurtisThe demonstration of the first fully functioning mechanical qubit offers a new platform for quantum information processing and could lead to ultraprecise gravity sensors.[Physics 17, 172] Published Wed Dec 04, 2024
The demonstration of the first fully functioning mechanical qubit offers a new platform for quantum information processing and could lead to ultraprecise gravity sensors.
UPDATE: Proba-3 launched successfully Thursday morning at 5:34 A.M. EST (10:34 GMT). You can watch a replay of the launch here. In a fabulous feat of formation flying, the European Space Agency’s (ESA) Proba-3 mission, now set to launch Thursday morning, will fly two spacecraft 490 feet (150 meters, or one and a half footballContinue reading "Proba-3 launches, ready to eclipse the Sun"
The post Proba-3 launches, ready to eclipse the Sun appeared first on Astronomy Magazine.
UPDATE: Proba-3 launched successfully Thursday morning at 5:34 A.M. EST (10:34 GMT). You can watch a replay of the launch here. In a fabulous feat of formation flying, the European Space Agency’s (ESA) Proba-3 mission, now set to launch Thursday morning, will fly two spacecraft 490 feet (150 meters, or one and a half footballContinue reading "Proba-3 launches, ready to eclipse the Sun"
NEOWISE team members have unveiled six images from the spacecraft's archives to celebrate the late space telescope's long and productive scientific life.
NEOWISE team members have unveiled six images from the spacecraft's archives to celebrate the late space telescope's long and productive scientific life.
Author(s): Charles DayNuclear scattering data suggest the possible observation of a predicted but never-observed nuclear vibration.[Physics 17, s146] Published Wed Dec 04, 2024
In its first launch since a catastrophic failure in 2022, the European Space Agency's Vega-C rocket is set to lift off on its next mission Thursday (Dec. 5).
In its first launch since a catastrophic failure in 2022, the European Space Agency's Vega-C rocket is set to lift off on its next mission Thursday (Dec. 5).
The International Space Station will be steered to a controlled destruction in Earth's atmosphere in 2031, if all goes to plan. Should we be worried about the pollution this death dive will cause?
The International Space Station will be steered to a controlled destruction in Earth's atmosphere in 2031, if all goes to plan. Should we be worried about the pollution this death dive will cause?
A SpaceX Falcon 9 rocket launched 24 Starlink broadband satellites early Dec. 4. It was the 24th flight for the rocket's first stage, setting a new record.
A SpaceX Falcon 9 rocket launched 24 Starlink broadband satellites early Dec. 4. It was the 24th flight for the rocket's first stage, setting a new record.
An Indian PSLV rocket will launch Europe's Proba-3 precision formation-flying mission to orbit early Thursday (Dec. 5), and you can watch the action live.
An Indian PSLV rocket will launch Europe's Proba-3 precision formation-flying mission to orbit early Thursday (Dec. 5), and you can watch the action live.
You don’t want to miss Jupiter this month. The giant planet reaches opposition and peak visibility December 7 against the stunning backdrop of Taurus the Bull. Shining at magnitude –2.8, Jupiter dominates the northeastern sky once darkness falls. Although the gas giant lies well north of the celestial equator — less than optimal for usContinue reading "December 2024: What’s in the Southern Hemisphere sky this month?"
The post December 2024: What’s in the Southern Hemisphere sky this month? appea
You don’t want to miss Jupiter this month. The giant planet reaches opposition and peak visibility December 7 against the stunning backdrop of Taurus the Bull. Shining at magnitude –2.8, Jupiter dominates the northeastern sky once darkness falls. Although the gas giant lies well north of the celestial equator — less than optimal for usContinue reading "December 2024: What’s in the Southern Hemisphere sky this month?"
Author(s): David EhrensteinPrize-winning videos cover the range from microscopic droplets to global climate.[Physics 17, 171] Published Tue Dec 03, 2024
New research suggests that tiny primordial black holes could be hollowing out planets and passing through everyday objects, maybe even you and your cat!
New research suggests that tiny primordial black holes could be hollowing out planets and passing through everyday objects, maybe even you and your cat!
A tiny asteroid measuring some 27 inches (70 cm) wide was detected on a collision course with Earth above Siberia. It is expected to burn up harmlessly on the morning of Dec. 3, 2024.
A tiny asteroid measuring some 27 inches (70 cm) wide was detected on a collision course with Earth above Siberia. It is expected to burn up harmlessly on the morning of Dec. 3, 2024.
Author(s): Rachel BerkowitzCell–cell alignment and a background of stationary cells together shape the emergence of cellular clusters in a primary tumor.[Physics 17, s141] Published Tue Dec 03, 2024
A company that crafts knife handles from leftover rocket metal and the wood from trees surrounding the launch pad has created a limited piece celebrating the anniversary of Europe's venerable Ariane.
A company that crafts knife handles from leftover rocket metal and the wood from trees surrounding the launch pad has created a limited piece celebrating the anniversary of Europe's venerable Ariane.
Asteroids colliding with neutron stars could account for mysterious blasts of energy called fast radio bursts by releasing enough energy to supply humanity's power needs for one hundred million years.
Asteroids colliding with neutron stars could account for mysterious blasts of energy called fast radio bursts by releasing enough energy to supply humanity's power needs for one hundred million years.
Most people associate the discovery that faraway galaxies are receding from us — and thus, that the universe is expanding — with Edwin Hubble, thanks to his landmark 1929 paper. It was one of the most fundamental discoveries in the history of science. But Hubble did not discover the expansion. In the 1910s, a LowellContinue reading "Is it time to rename the Hubble constant?"
The post Is it time to rename the Hubble constant? appeared first on Astronomy Magazine.
Most people associate the discovery that faraway galaxies are receding from us — and thus, that the universe is expanding — with Edwin Hubble, thanks to his landmark 1929 paper. It was one of the most fundamental discoveries in the history of science. But Hubble did not discover the expansion. In the 1910s, a LowellContinue reading "Is it time to rename the Hubble constant?"
The Big Bang may not have been the origin of the universe's most mysterious matter. Instead, dark matter could have been created in a second creation event, a "Dark Big Bang."
The Big Bang may not have been the origin of the universe's most mysterious matter. Instead, dark matter could have been created in a second creation event, a "Dark Big Bang."
Vega, located in the constellation Lyra, is the fifth-brightest star in the night sky. It is known to be surrounded a disk of particle debris that’s almost 100 billion miles (160 billion kilometers) in diameter. The star and its orbiting disk have been photographed countless times by several observatories and satellites, although it was onlyContinue reading "What is Vega’s smooth-surface secret?"
The post What is Vega’s smooth-surface secret? appeared first on Astronomy Magazine.
Vega, located in the constellation Lyra, is the fifth-brightest star in the night sky. It is known to be surrounded a disk of particle debris that’s almost 100 billion miles (160 billion kilometers) in diameter. The star and its orbiting disk have been photographed countless times by several observatories and satellites, although it was onlyContinue reading "What is Vega’s smooth-surface secret?"
Hao Liu, taken in Nanjing, China The name Tsuchinshan was on world’s lips this year when Comet C/2023 A3 — otherwise known as Comet Tsuchinshan-ATLAS — burst into naked-eye view. The name refers to Tuschinshan Observatory (or Purple Mountain Observatory), whose facility in Xuyi was the first to discover the comet. In this image, theContinue reading "Tsuchinshan, take a bow"
The post Tsuchinshan, take a bow appeared first on Astronomy Magazine.
Hao Liu, taken in Nanjing, China The name Tsuchinshan was on world’s lips this year when Comet C/2023 A3 — otherwise known as Comet Tsuchinshan-ATLAS — burst into naked-eye view. The name refers to Tuschinshan Observatory (or Purple Mountain Observatory), whose facility in Xuyi was the first to discover the comet. In this image, theContinue reading "Tsuchinshan, take a bow"
Data processing for NASA's Solar Dynamics Observatory and IRIS probe are down for a while, thanks to a burst water pipe in a server room used by the missions.
Data processing for NASA's Solar Dynamics Observatory and IRIS probe are down for a while, thanks to a burst water pipe in a server room used by the missions.
Years after the collapse of the Arecebo telescope data from the radio observatory has helped SETI scientists probe the characteristics of pulsars, cosmic lighthouses powered by dead stars.
Years after the collapse of the Arecebo telescope data from the radio observatory has helped SETI scientists probe the characteristics of pulsars, cosmic lighthouses powered by dead stars.
Why do we not see effects of dark matter in our solar system and other nearby star systems? Curran RodeAmmannsville, Texas Dark matter refers to material that does not absorb, reflect, or emit any electromagnetic radiation. Astronomers have ascertained the existence of dark matter through the gravitational influence it exerts over visible matter. In fact,Continue reading "Does dark matter affect our solar system?"
The post Does dark matter affect our solar system? appeared first on Astronomy Mag
Why do we not see effects of dark matter in our solar system and other nearby star systems? Curran RodeAmmannsville, Texas Dark matter refers to material that does not absorb, reflect, or emit any electromagnetic radiation. Astronomers have ascertained the existence of dark matter through the gravitational influence it exerts over visible matter. In fact,Continue reading "Does dark matter affect our solar system?"
A panel of experts has picked seven finalists for the name of asteroid (164207) 2004 GU9, a "quasi-moon" of Earth. You can vote for your favorite through Jan. 1, 2025.
A panel of experts has picked seven finalists for the name of asteroid (164207) 2004 GU9, a "quasi-moon" of Earth. You can vote for your favorite through Jan. 1, 2025.
The story of the inner early Solar System goes something like this: Billions of years ago, there were three rocky worlds with oceans of liquid water. Perhaps all three could have been primed for life. But as Mars lost its atmosphere and Venus’ atmosphere experienced a runaway greenhouse effect, only Earth could support life byContinue reading "Venus may never have had oceans"
The post Venus may never have had oceans appeared first on Astronomy Magazine.
The story of the inner early Solar System goes something like this: Billions of years ago, there were three rocky worlds with oceans of liquid water. Perhaps all three could have been primed for life. But as Mars lost its atmosphere and Venus’ atmosphere experienced a runaway greenhouse effect, only Earth could support life byContinue reading "Venus may never have had oceans"
In this episode, Dave Eicher invites you to observe the Moon passing by Saturn on the evening of December 7. Both objects at the time will be in the constellation Aquarius the Water-bearer. The Moon will be 43 percent illuminated, or nearly at its First Quarter phase. The Ringed Planet will lie 4 degrees toContinue reading "The Moon passes Saturn: This Week in Astronomy with Dave Eicher"
The post The Moon passes Saturn: This Week in Astronomy with Dave Eicher appeared first on Astronomy Magazine
In this episode, Dave Eicher invites you to observe the Moon passing by Saturn on the evening of December 7. Both objects at the time will be in the constellation Aquarius the Water-bearer. The Moon will be 43 percent illuminated, or nearly at its First Quarter phase. The Ringed Planet will lie 4 degrees toContinue reading "The Moon passes Saturn: This Week in Astronomy with Dave Eicher"
Looking for the perfect Christmas present for a young stargazer? Rush to snap up one of the best telescopes for kids, the Celestron AstroMaster, 15% off for Cyber Monday.
Looking for the perfect Christmas present for a young stargazer? Rush to snap up one of the best telescopes for kids, the Celestron AstroMaster, 15% off for Cyber Monday.
This Potensic Atom has everything a new drone pilot could want — we dub it 'the best drone you can fly for less than $400' (it's currently almost $300 on sale).
This Potensic Atom has everything a new drone pilot could want — we dub it 'the best drone you can fly for less than $400' (it's currently almost $300 on sale).
China's Shenzhou 19 astronauts have some winged companions to oversee aboard the country's Tiangong space station — fruit flies, which arrived on a cargo ship on Nov. 15.
China's Shenzhou 19 astronauts have some winged companions to oversee aboard the country's Tiangong space station — fruit flies, which arrived on a cargo ship on Nov. 15.
Author(s): Philip BallA new method for controlling the interactions between ultracold atoms and light could advance efforts to simulate complex quantum systems using atom clouds.[Physics 17, 170] Published Mon Dec 02, 2024
A new method for controlling the interactions between ultracold atoms and light could advance efforts to simulate complex quantum systems using atom clouds.
Author(s): Ryan WilkinsonA new analysis challenges the claim that a gamma-ray signal observed from a direction near the Milky Way’s center is produced by a dwarf galaxy.[Physics 17, s147] Published Mon Dec 02, 2024
This Unistellar Odyssey telescope is loaded with features that take the work out of observing the cosmos and it's $460 off for Cyber Monday, but you'll have to be fast!
This Unistellar Odyssey telescope is loaded with features that take the work out of observing the cosmos and it's $460 off for Cyber Monday, but you'll have to be fast!
Cyber Monday is your last day to save serious money on telescopes, but you'll have to be fast, we've already seen some deals disappear into a black hole but here are 9 you won't want to miss!
Cyber Monday is your last day to save serious money on telescopes, but you'll have to be fast, we've already seen some deals disappear into a black hole but here are 9 you won't want to miss!
It may be cold this month, but now is a great time to get outside and explore Jupiter’s beauty and might. The fifth planet will not only reach opposition on Dec. 7, it will also be at perigee (closest to Earth) on Dec. 6, putting on its biggest and brightest show of the year. KnownContinue reading "Watch Jupiter’s moons in action this month"
The post Watch Jupiter’s moons in action this month appeared first on Astronomy Magazine.
It may be cold this month, but now is a great time to get outside and explore Jupiter’s beauty and might. The fifth planet will not only reach opposition on Dec. 7, it will also be at perigee (closest to Earth) on Dec. 6, putting on its biggest and brightest show of the year. KnownContinue reading "Watch Jupiter’s moons in action this month"
A new frontier has been reached in simulations of the universe, with the powerful exascale supercomputer called "Frontier" performing the most detailed simulation yet of the cosmos.
A new frontier has been reached in simulations of the universe, with the powerful exascale supercomputer called "Frontier" performing the most detailed simulation yet of the cosmos.
Still live! We gave this star projector five stars in our glowing review and it's currently on offer for Cyber Monday, except it's not a genuine deal, but I'd buy it anyway.
Still live! We gave this star projector five stars in our glowing review and it's currently on offer for Cyber Monday, except it's not a genuine deal, but I'd buy it anyway.
This Black Friday weekend, the Sky-Watcher EvoStar 120 APO Doublet Refractor is 20% off and is a must-buy if you are a seasoned skywatcher or looking for an upgrade on your current instrument.
This Black Friday weekend, the Sky-Watcher EvoStar 120 APO Doublet Refractor is 20% off and is a must-buy if you are a seasoned skywatcher or looking for an upgrade on your current instrument.
Universal manual Penguin Random HouseNew York, NY The beauty and science of space combine in the book Smithsonian Atlas of Space. This 400-page hardback, created by NASA’s Chief Historian Roger D. Launius, features illustrations, maps, and images detailing humanity’s understanding of the universe from ancient times to modern day. It also includes profiles of someContinue reading "Festive astronomy products for everyone on your list"
The post Festive astronomy products for everyone on your list a
Universal manual Penguin Random HouseNew York, NY The beauty and science of space combine in the book Smithsonian Atlas of Space. This 400-page hardback, created by NASA’s Chief Historian Roger D. Launius, features illustrations, maps, and images detailing humanity’s understanding of the universe from ancient times to modern day. It also includes profiles of someContinue reading "Festive astronomy products for everyone on your list"
Jupiter reaches its best apparition in a decade for northern observers and offers a wealth of detail. Joining in late evening is brilliant Mars, now a month from opposition. Saturn is visible in the early evening, along with Venus soon after sunset. Uranus and Neptune remain visible with binoculars, and Mercury makes a fine morningContinue reading "December 2024: What’s in the sky this month? Jupiter reaches its best Northern Hemisphere opposition in a decade"
The post December 2024: What’s in t
I've tried and tested many telescopes over the years to ensure you're choosing the right kit for you. These top five Black Friday weekend steals offer superb views of planets, galaxies, nebulas and stars.
I've tried and tested many telescopes over the years to ensure you're choosing the right kit for you. These top five Black Friday weekend steals offer superb views of planets, galaxies, nebulas and stars.
The "Resilience" Mission 2 lander, built by Japanese company ispace, has arrived in Florida ahead of its planned January launch on a SpaceX Falcon 9 rocket.
The "Resilience" Mission 2 lander, built by Japanese company ispace, has arrived in Florida ahead of its planned January launch on a SpaceX Falcon 9 rocket.
Giant robots and piloted machines have been popular in science fiction for decades. If you want to be a mech jock yourself, these are the best mech games.
Giant robots and piloted machines have been popular in science fiction for decades. If you want to be a mech jock yourself, these are the best mech games.
Want to roleplay as Star Wars' little green Jedi Master? Get 32% off this electronic Star Wars Black Series Yoda Lightsaber on Amazon this Black Friday.
Want to roleplay as Star Wars' little green Jedi Master? Get 32% off this electronic Star Wars Black Series Yoda Lightsaber on Amazon this Black Friday.
It may be six years old but this fan-favorite Sony mirrorless is now $860 cheaper at Walmart from Black Friday through Cyber Monday — a huge 43% discount!
It may be six years old but this fan-favorite Sony mirrorless is now $860 cheaper at Walmart from Black Friday through Cyber Monday — a huge 43% discount!
The optics for NASA's Nancy Grace Roman Space Telescope have been delivered, marking a big milestone in the assembly of the powerful next-generation observatory.
The optics for NASA's Nancy Grace Roman Space Telescope have been delivered, marking a big milestone in the assembly of the powerful next-generation observatory.
Behyar Bakhshandeh from Carlsbad, California Resembling an outstretched hand, the Helping Hand in Cassiopeia consists of the dark nebulae LDN 1355/7/8, which overlie a region of reflection nebulosity cataloged as LBN 643. This imager took 9 hours of exposure on a 4.2-inch scope in LRGB filters.
The post Need a hand? appeared first on Astronomy Magazine.
Behyar Bakhshandeh from Carlsbad, California Resembling an outstretched hand, the Helping Hand in Cassiopeia consists of the dark nebulae LDN 1355/7/8, which overlie a region of reflection nebulosity cataloged as LBN 643. This imager took 9 hours of exposure on a 4.2-inch scope in LRGB filters.
Astronomers have tracked a mysterious, record-breaking blast of energy to a binary star system containing a red dwarf star and a white dwarf — solving a two-decade-long puzzle.
Astronomers have tracked a mysterious, record-breaking blast of energy to a binary star system containing a red dwarf star and a white dwarf — solving a two-decade-long puzzle.
If you have a telescope, or access to one, now’s the time to point it at Jupiter. The largest planet in our solar system reaches opposition December 7. That means it’s directly opposite the Sun from our viewpoint here on Earth. It rises at sunset, sets at sunrise, and is visible all night. During theContinue reading "Jupiter reaches opposition this weekend: How to see it"
The post Jupiter reaches opposition this weekend: How to see it appeared first on Astronomy Magazine.
If you have a telescope, or access to one, now’s the time to point it at Jupiter. The largest planet in our solar system reaches opposition December 7. That means it’s directly opposite the Sun from our viewpoint here on Earth. It rises at sunset, sets at sunrise, and is visible all night. During theContinue reading "Jupiter reaches opposition this weekend: How to see it"
Don't leave this stunning Lego set on the launch pad! This massive Lego Icons NASA Artemis Space Launch System set is £33 off in Amazon UK's Black Friday sale.
Don't leave this stunning Lego set on the launch pad! This massive Lego Icons NASA Artemis Space Launch System set is £33 off in Amazon UK's Black Friday sale.
Looking for a gift for a space-loving child? Or do you just want a star projector that won't break the bank? Our favorite Astronaut star projector is 35% cheaper this Black Friday.
Looking for a gift for a space-loving child? Or do you just want a star projector that won't break the bank? Our favorite Astronaut star projector is 35% cheaper this Black Friday.
If astronomers could catch bursts of gamma rays from supernova explosions that create neutron stars near the Milky Way, the mystery of dark matter could be wrapped up in 10 seconds.
If astronomers could catch bursts of gamma rays from supernova explosions that create neutron stars near the Milky Way, the mystery of dark matter could be wrapped up in 10 seconds.
Login
Space
Astronomy Magazine
American Physical Society
اسطرلاب (StarYab)
