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#Extragalactic

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Posts tagged #Extragalactic

What a masterpiece of processing: blazing blue-white core in the center (those are the hottest young stars), then reddish-orange wispy bits everywhere that look like tarantula legs. Pitch-black sky behind packed with thousands of stars. It grabs you even if you know zero about space.

What a masterpiece of processing: blazing blue-white core in the center (those are the hottest young stars), then reddish-orange wispy bits everywhere that look like tarantula legs. Pitch-black sky behind packed with thousands of stars. It grabs you even if you know zero about space.

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This magnificent, composite image from multiple data sources ( #Hubble, #ESO, #JWST, amateur data), assembled and processed by Robert Gendler, shows the Tarantula Nebula (30 Doradus, NGC 2070). 🔭

➡️ apod.nasa.gov/apod/ap22091...

🧪 ⚛️ #extragalactic #Universe #Astronomy #Science #space

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Astronomers discover galaxy made of 99% dark matter | CNN A galaxy made almost entirely of dark matter, an elusive form of matter that doesn’t interact with light, was spotted by Hubble 250 million light-years from Earth.

I'm quoted mis-quoting the Princess Bride in this CNN article on Li et al.'s discovery of a galaxy that appears to be 99% composed of dark matter. #extragalactic
"Mostly dark is slightly bright"
www.cnn.com/2026/03/03/s...

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This paper has now been published in final journal format, and is featured on the cover of this week's print issue.
☄️🔭 #extragalactic
www.science.org/doi/10.1126/...

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This galaxy is one of the most enigmatic in our PHANGS survey✨🔭🧪☄ Today's @apod.shinyakato.dev compares our Webb infrared and Hubble optical images...
(Find these color-composite images, science-ready imaging data, plus catalogs of star clusters at archive.stsci.edu/hlsp/phangs ) #extragalactic

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#paperday #Extragalactic What determines whether a galaxy can become a jellyfish galaxy? Thanks to new Meerkat data, we now propose that this may be due to a combination of supersonic orbits and interactions with the magnetic field of the galaxy cluster. More at arxiv.org/abs/2602.21821

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As an example science application, they apply the code to a JWST survey searching for distant galaxies. By improving the depth of the photometry in every band, they treble the number of z>9 sources identified in the survey field.
☄️🔭 #astrocode #extragalactic
www.science.org/doi/10.1126/...

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Black holes disguised as little red dots There may be a newly identified early phase of supermassive black hole growth

What are the #extragalactic 'little red dots' that appear in observations of the distant Universe? In a Perspective piece, Jorryt Matthee (@jorryt.bsky.social) discusses the evidence that they are obscured accreting supermassive black holes in low-mass galaxies. ☄️🔭
www.science.org/doi/10.1126/...

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The following caption comes from this web page: https://science.nasa.gov/asset/webb/macs-j04175-1154-wide-field-nircam-image/ 

"A cosmic question mark appears amid a powerful gravitational lens in the James Webb Space Telescope’s wide-field view of the galaxy cluster MACS-J0417.5-1154. Gravitational lensing occurs when something is so massive, like this galaxy cluster, that it warps the fabric of space-time itself, creating a natural funhouse-mirror effect that also magnifies galaxies behind it.
The rarely seen type of lensing captured here, which astronomers term hyperbolic umbilic, created five repeated images of one galaxy pair. The red, elongated member of this pair traces the familiar shape of a question mark across the sky due to the distortion, with another unrelated galaxy happening to be in just the right space-time to appear like the question mark’s dot – especially for humans who love to recognize familiar shapes and patterns."

The following caption comes from this web page: https://science.nasa.gov/asset/webb/macs-j04175-1154-wide-field-nircam-image/ "A cosmic question mark appears amid a powerful gravitational lens in the James Webb Space Telescope’s wide-field view of the galaxy cluster MACS-J0417.5-1154. Gravitational lensing occurs when something is so massive, like this galaxy cluster, that it warps the fabric of space-time itself, creating a natural funhouse-mirror effect that also magnifies galaxies behind it. The rarely seen type of lensing captured here, which astronomers term hyperbolic umbilic, created five repeated images of one galaxy pair. The red, elongated member of this pair traces the familiar shape of a question mark across the sky due to the distortion, with another unrelated galaxy happening to be in just the right space-time to appear like the question mark’s dot – especially for humans who love to recognize familiar shapes and patterns."

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In case you missed it, here’s the #JWST wide-field view of the huge galaxy cluster MACS-J0417.5-1154, known for its stunning gravitational lensing effects and its wild ongoing merger dance. 🔭 🧪 ⚛️

➡️ webbtelescope.org/contents/new...

#cosmology #extragalactic #space #Astronomy #universe

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Original post on astrobites.org

Should I Stay or Should I Go? Clumps and Inward Migration Something is missing in the middle. In JWST JADES galaxies, young clumps drop out in the inner regions, while clump structure shifts from t...

#Daily #Paper #Summaries #Clumps #cosmic #noon […]

[Original post on astrobites.org]

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How giant galaxies could form just 1.4 billion years after the Big Bang Observations of the protocluster SPT2349-56 reveal how massive galaxies could form early in the Universe.

Paper day: I am extremely happy to announce our major discovery concerning the mysterious emergence of the first massive galaxies when the Universe was only 10% its current age:
www.mpifr-bonn.mpg.de/pressrelease...
#radioastronomy #extragalactic #astrosci 📡☄️🔭🧪

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New X-GAP paper on arXiv led by Ramananda Santra (NCRA-TIFR), studying old AGN plasma in galaxy groups with uGMRT, LOFAR & XMM-Newton.

Found beautifully messy radio morphologies, showing the important role that group environment plays in the AGN feedback process.

#astro #extragalactic #radioastro

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Bitcoin price graph flipped horizontally

Bitcoin price graph flipped horizontally

Nice strong 4000A break there 🧪🔭 #extragalactic

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Looks like it needs to be just #Extragalactic. Go to the original post to read the thread describing the results

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Original post on astrobites.org

Feed the Fire, Fade the Metals Are cosmic clumps “homegrown”, or fueled by fresh inflow? Today’s authors find that star-forming clumps are usually more metal-poor than the disks around them. ...

#Daily #Paper #Summaries #Clumps #cosmic #noon #extragalactic […]

[Original post on astrobites.org]

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That should be #Extragalactic.

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Kader, @justtheletteru.bsky.social et al. use multi-wavelength observations to show a precessing jet in an active galaxy is driving a gas outflow. This galactic feedback is removing enough material to affect the star formation rate.
☄️ #extragalactic #AAS247
www.science.org/doi/10.1126/...

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today! 🔭✨🧪☄️
#exoplanets
#extragalactic
#cosmology

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NASA Selects Tech Proposals to Advance Search-for-Life Mission - NASA NASA announced Monday the selection of industry proposals to advance technologies for the agency’s Habitable Worlds Observatory concept – the first mission

“The Habitable Worlds Observatory is exactly the kind of bold, forward-leaning science that only NASA can undertake...” said NASA Administrator Jared Isaacman...
🔭✨🧪🧵☄️
#exoplanets
#extragalactic

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🔭☄️
#extragalactic #exoplanets

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A paper that currently sits on 111 citations.

A paper that currently sits on 111 citations.

Someone hurry up and cite this so I can stand on 2 legs again. #extragalactic 🧪🔭 #academicsky 🏏

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A deep-space image from the James Webb Space Telescope shows a small patch of sky filled with thousands of distant galaxies as faint, diffuse spots and streaks in shades of blue, white, and subtle reds against a black background. An inset box zooms in on the reddish, compact galaxy Virgil, seen as it existed 800 million years after the Big Bang, highlighting its hidden supermassive black hole shrouded in dust.

A deep-space image from the James Webb Space Telescope shows a small patch of sky filled with thousands of distant galaxies as faint, diffuse spots and streaks in shades of blue, white, and subtle reds against a black background. An inset box zooms in on the reddish, compact galaxy Virgil, seen as it existed 800 million years after the Big Bang, highlighting its hidden supermassive black hole shrouded in dust.

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Ever wonder what the baby universe looked like—just 800 million years after the Big Bang?

JWST has given us an amazing glimpse via a galaxy called Virgil, hidden in the iconic Hubble eXtreme Deep Field.

➡️ news.arizona.edu/news/monster...

🔭 🧪 #extragalactic #science #cosmology #JWST

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🔭🧪☄️ #habitableworldsobservatory
#extragalactic #exoplanets #galactic #stellarastro

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Of course I forgot: 🔭☄️ #extragalactic

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The  image features Messier 106, a big spiral galaxy. Its center glows bright white from a huge black hole gobbling gas. Blue arms full of young stars sweep out wide, crossed by dark red dust lanes and pink hydrogen clouds near the middle. Faint reddish extra arms hint at hidden jets. It stretches approximately 135,000 light-years across in the dark sky.

The image features Messier 106, a big spiral galaxy. Its center glows bright white from a huge black hole gobbling gas. Blue arms full of young stars sweep out wide, crossed by dark red dust lanes and pink hydrogen clouds near the middle. Faint reddish extra arms hint at hidden jets. It stretches approximately 135,000 light-years across in the dark sky.

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Here is Messier 106 (or NGC 4258), a true cosmic marvel in the constellation Canes Venatici.

Image Credit: NASA, ESO , NAOJ, Giovanni Paglioli; Assembling and Processing: R. Colombari and R. Gendler

➡️ apod.nasa.gov/apod/ap19031...

🔭 🧪 #science #universe #extragalactic #astronomy

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Admire this fascinating JWST picture.

The cluster MACSJ0159.2-0849, here featured, is a monster made of hundreds of galaxies, ~4.5 billion light-years away.

But the real magic? This galaxy cluster works as a gigantic, natural magnifying glass.

🔭 🧪 #extragalactic #cosmology

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🌟 BlueSky trending hashtags (1h):

#booksky #art #birds #photography #nature #science #furry #furryart #gamedev #extragalactic #hubble #christmas #indiedev #writingcommunity #oc

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🔥 BlueSky trending hashtags (30m):

#booksky #art #birds #photography #nature #science #extragalactic #hubble #furry #gamedev #furryart #indiedev #christmas #writingcommunity #books

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🚀 BlueSky trending hashtags (15m):

#booksky #art #birds #photography #nature #science #furry #gamedev #furryart #indiedev #extragalactic #hubble #christmas #oc #writingcommunity

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Look at this galaxy going absolutely feral!

NGC 1792 is popping out stars like 10× faster than ours?

Apparently its neighbor NGC 1808 keeps yanking on it.

The result?
Fireworks of baby blue stars and glowing red clouds.

Space is really wild.

🔭 🧪 #extragalactic #science #Hubble

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Meet Fraser Smith, a student at Saint Mary's University studying the impact of various physical processes on the ergodicity of SFMS deviations in galaxy simulations 🌌 Read all about their research here: casca.ca?page_id=22353

#astronomy #extragalactic #astrosci

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