A Hubble image of the galaxy ESO 137-001, also known as the Jellyfish Galaxy. This is a barred spiral galaxy at a distance of about 220 million light-years away.
February 20, 2025 at 11:54 PM
This is most detailed photo ever of an extragalactic object.A 400 megapixel photo of the Andromeda Galaxy.
Captured over a period of 3 months using 2 telescopes and thousands of photos.
Credit: Andrew McCarthy
Captured over a period of 3 months using 2 telescopes and thousands of photos.
Credit: Andrew McCarthy
February 22, 2025 at 2:05 PM
This is most detailed photo ever of an extragalactic object.A 400 megapixel photo of the Andromeda Galaxy.
Captured over a period of 3 months using 2 telescopes and thousands of photos.
Credit: Andrew McCarthy
Captured over a period of 3 months using 2 telescopes and thousands of photos.
Credit: Andrew McCarthy
🔭 🧪 #extragalactic
Hubble is searching for an imposter in the spiral galaxy UGC 5460! 🥸
This galaxy hosted two recent supernovae, one of which might actually turn out to be an impostor called a luminous blue variable 👉 esahubble.org/images/potw2...
This galaxy hosted two recent supernovae, one of which might actually turn out to be an impostor called a luminous blue variable 👉 esahubble.org/images/potw2...
February 17, 2025 at 9:28 AM
🔭 🧪 #extragalactic
Check out 4000A break on this elliptical galaxy 🧪🔭 #extragalactic
April 9, 2025 at 5:58 PM
Check out 4000A break on this elliptical galaxy 🧪🔭 #extragalactic
Fantastic news! 🧪🔭 #extragalactic #academicsky
🚨 Exciting announcement 🚨
Professor Dr Isobel Hook has been awarded the 2025 Caroline Herschel Medal for her "pioneering" work on distant supernovae and the accelerating universe! 🌌 💫🏅
Congrats Professor Hook! #WomenInSTEM #Astronomy https://buff.ly/3EBkg8f
Professor Dr Isobel Hook has been awarded the 2025 Caroline Herschel Medal for her "pioneering" work on distant supernovae and the accelerating universe! 🌌 💫🏅
Congrats Professor Hook! #WomenInSTEM #Astronomy https://buff.ly/3EBkg8f
February 12, 2025 at 10:12 AM
Fantastic news! 🧪🔭 #extragalactic #academicsky
Today, the Nancy Grace Roman Space Telescope leaves NASA Goddard for the Port of Baltimore to begin its journey to the Kennedy Space Center.
This August, Roman will launch into space, broadening our understanding of our solar system & universe.
Excited to see it on the move!
This August, Roman will launch into space, broadening our understanding of our solar system & universe.
Excited to see it on the move!
June 13, 2026 at 6:53 PM
Please see here for PhD projects at Lancaster University Astrophysics, starting October 2025. There is one with me on the subject of galaxy evolution with environment 😀🌌 🔭🧪 #extragalactic #cosmology www.lancaster.ac.uk/physics/rese...
Observational Astrophysics - Lancaster University
www.lancaster.ac.uk
November 28, 2024 at 8:21 PM
Researchers have found a planetary nebula in a star cluster in the Andromeda Galaxy — one of just a handful of known extragalactic planetary nebula–open cluster pairs. aasnova.org/2026/09/16/e... 🔭🧪
Extragalactic Planetary Nebula with Massive Progenitor Sheds Light on Stellar Evolution
Researchers investigate a planetary nebula in a star cluster in the Andromeda Galaxy — one of just a handful of known extragalactic planetary nebula–open cluster pairs.
aasnova.org
September 16, 2026 at 5:47 PM
Researchers have found a planetary nebula in a star cluster in the Andromeda Galaxy — one of just a handful of known extragalactic planetary nebula–open cluster pairs. aasnova.org/2026/09/16/e... 🔭🧪
@dyonysos.bsky.social, qui travaille sur les données du télescope spatial #JWST @iap.fr, était l'invité ce samedi de France-Inter : www.radiofrance.fr/franceinter/... @cnrs-insu.bsky.social @cnrs-paris.bsky.social @sorbonne-universite.fr
Le mystère des petits points rouges
Christophe Galfard reçoit l'acteur et réalisateur Mathieu Kassovitz, la chercheuse spécialiste d'astrophysique computationnelle Mélanie Habouzit et le chercheur à l'Institut d'astrophysique de Paris H...
www.radiofrance.fr
September 24, 2026 at 8:46 AM
Next off is a feed for #extragalactic astronomy, including research of other galaxies & the things within them (like AGN):
September 12, 2024 at 4:17 PM
Next off is a feed for #extragalactic astronomy, including research of other galaxies & the things within them (like AGN):
This is the famous Pinwheel Galaxy (Messier 101) in her full, flowing glory, about 21 million light-years away in the constellation Ursa Major. 🔭 🧪 #space #extragalactic
December 12, 2024 at 11:52 AM
This is the famous Pinwheel Galaxy (Messier 101) in her full, flowing glory, about 21 million light-years away in the constellation Ursa Major. 🔭 🧪 #space #extragalactic
Perhaps one of the most beautiful space photos I ever seen. This is the gorgeous galaxy Messier 94 in the constellation Canes Venatici, 16 million light-years away. 🔭 🧪 #space #extragalactic
December 12, 2024 at 4:57 AM
Perhaps one of the most beautiful space photos I ever seen. This is the gorgeous galaxy Messier 94 in the constellation Canes Venatici, 16 million light-years away. 🔭 🧪 #space #extragalactic
We’re doing ‘oldest’ again. #extragalactic #cosmology 🧪🔭
#PPOD: GLASS-z12 (formerly GLASS-z13) is one of the oldest galaxies ever seen, dating back to 350 million years after the Big Bang. It was discovered in data collected by NIRCam on NASA's JWST in 2022. Credit: NASA/STScI/GLASS-JWST program: R. Naidu, G. Brammer, T. Treu 🧪 🔭
April 9, 2025 at 10:00 AM
We’re doing ‘oldest’ again. #extragalactic #cosmology 🧪🔭
✨may 2025 bring you strength, courage, renewed determination, and hope✨🔭 #extragalactic
January 1, 2025 at 4:52 PM
✨may 2025 bring you strength, courage, renewed determination, and hope✨🔭 #extragalactic
(Fairly) new here, so hi, I’m Katherine, a PhD student studying galaxies in the Epoch of Reionisation with JWST 🔭
November 16, 2024 at 11:38 PM
Off on my way to Newcastle for #DEX2025 #extragalactic 🔭🧪
January 9, 2025 at 8:54 AM
Off on my way to Newcastle for #DEX2025 #extragalactic 🔭🧪
💙 the cover of the HWO-J workshop proceedings✨
iral2.ess.sci.osaka-u.ac.jp/~sumi/HWO_Ja...
🔭🧪☄️
#exoplanet
#galactic
#extragalactic
iral2.ess.sci.osaka-u.ac.jp/~sumi/HWO_Ja...
🔭🧪☄️
#exoplanet
#galactic
#extragalactic
September 23, 2026 at 10:36 AM
💙 the cover of the HWO-J workshop proceedings✨
iral2.ess.sci.osaka-u.ac.jp/~sumi/HWO_Ja...
🔭🧪☄️
#exoplanet
#galactic
#extragalactic
iral2.ess.sci.osaka-u.ac.jp/~sumi/HWO_Ja...
🔭🧪☄️
#exoplanet
#galactic
#extragalactic
Nice strong 4000A break there 🧪🔭 #extragalactic
February 5, 2026 at 11:50 PM
Nice strong 4000A break there 🧪🔭 #extragalactic
I’ve discovered a stock exchange using the Lyman Break technique 🔭🧪 #extragalactic
January 28, 2025 at 7:57 AM
I’ve discovered a stock exchange using the Lyman Break technique 🔭🧪 #extragalactic
Pleased to see our first WEAVE science is out! 🧪🔭 #extragalactic
First Scientific Results from WEAVE. Using the set of first-light observations from the new WHT WEAVE wide-field spectrograph, a team led by Dr Marina Arnaudova (Univ. of Hertfordshire, UK) has presented the first scientific results. www.ing.iac.es/PR/press/wea...
November 23, 2024 at 10:10 AM
Pleased to see our first WEAVE science is out! 🧪🔭 #extragalactic
Hello everyone! My first Bluesky posts!
I am very pleased to share that my 3rd first-author paper of my PhD is now available on arXiv! The paper has also been submitted to MNRAS following minor suggested revisions from the anonymous referee!
arxiv.org/abs/2509.08045
Thread on the details 🧵
I am very pleased to share that my 3rd first-author paper of my PhD is now available on arXiv! The paper has also been submitted to MNRAS following minor suggested revisions from the anonymous referee!
arxiv.org/abs/2509.08045
Thread on the details 🧵
The \emph{JWST} Emission Line Survey (JELS): The sizes and merger fraction of star-forming galaxies during the Epoch of Reionization
We used observations from the \emph{JWST} Emission Line Survey (JELS) to measure the half-light radii ($r_{e}$) of 23 H$α$-emitting star-forming (SF) galaxies at $z=6.1$ in the PRIMER/COSMOS field. Ga...
arxiv.org
September 11, 2025 at 6:29 PM
Two gravitational lens candidates from the North ecliptic pole EXtragalactic Unified Survey (NEXUS).
#JWST 🔭 NIRCam image (filters: F200W, F444W)
program: www.stsci.edu/jwst-program...
#JWST 🔭 NIRCam image (filters: F200W, F444W)
program: www.stsci.edu/jwst-program...
September 29, 2025 at 4:13 PM
Two gravitational lens candidates from the North ecliptic pole EXtragalactic Unified Survey (NEXUS).
#JWST 🔭 NIRCam image (filters: F200W, F444W)
program: www.stsci.edu/jwst-program...
#JWST 🔭 NIRCam image (filters: F200W, F444W)
program: www.stsci.edu/jwst-program...