Graham Smith @grahamsmithastro.bsky.social Professor, University of Birmingham
Project Scientist, LSST:UK
grahamsmithastro.com
All views are my own
Renske Smit @renskerens.bsky.social Reader in observational astrophysics. Parent. From Amsterdam, living in Liverpool <3
Pablo Arrabal Haro @richarwirman.bsky.social Astrophysicist at NASA Goddard Space Flight Center.
Gym, books & board games geek. Love solving probability problems too.
From Málaga. Living in Washington DC.
parrabalharo.com
The PRIMORDIAL group @primordial-grp.bsky.social Studying primordial galaxies and black holes at cosmic dawn
Bokyoung Kim @bokyoungkim.bsky.social “Not all those who wander are lost.”
Astronomer with a broad interest in the Sun, stars and the Milky Way Galaxy. (she/her)
Hobbyist photographer: @photosbybk.bsky.social
Emma C. Smith @emma-c-smith.bsky.social Project Manager for DARA (Development in Africa with Radio Astronomy) @ University of Leeds, UK.
Science Education 🤓 | Glaciology 🧊 | Geophysics 🫨
Cycle tourist 🚴 | Climber 🧗| Runner🏃 | Podcast addict 🎙️| (she/they) 🏳️🌈
All views my own.
The Hitchhiker's Guide to Radio Galaxies @ognimaeb.bsky.social Dr Beatriz Mingo. Radio/X-ray astronomer and sustainability enthusiast. Ernest Rutherford Fellow livin' la vida LOFAR at the University of Hertfordshire (UK). European 🇪🇺 Cat minion 🐈 Metalhead 🤘 She/them 🏳️🌈.
Same handle on Mastodon!
Rory Smith @rorysmith.bsky.social The Observer, Men In Blazers, the Monday Night Club, Libero. Author of "Mister" and "Expected Goals."
Joris Witstok @joriswitstok.bsky.social Looking up at the stars at the Cosmic Dawn Center (DAWN), Niels Bohr Institute, University of Copenhagen. Previously at Kavli Institute for Cosmology, University of Cambridge, University of Leiden. (He/him) 🇪🇺🇳🇱🇬🇧🇩🇰
Dirk Scholte @dirkscholte.bsky.social Postdoc at The University of Edinburgh Institute for Astronomy | Galaxy Evolution | Previously PhD at UCL and science outreach at Jodrell Bank Observatory. 🇳🇱 in 🇬🇧
Emma Bradshaw @emmajbradshaw.bsky.social Social media for the BBC and BBC Sport. Also have an astronomy PhD from the University of Nottingham. Where are the penguins?
Dr. Jillian Scudder @jillianscudder.com Astrophysicist, author (The Universe: A Graphic Guide, 40 Ways to Know A Star, & more), artist, sewist, science communicator. English/Français/子供の日本語。Associate Professor. hEDS ♿️. She/her. 🏳️🌈. Opinions all mine.
https://www.jillianscudder.com/books
Kyle Cook @kwcookastro.bsky.social PhD Candidate astronomer at the University of Louisville. LADUMA member. Roller coaster fanatic. 🏳️🌈 (he/him)
Dr. Stéphanie Juneau @stephajuneau.bsky.social Astrophysicist, supermassive black hole hunter, artist, public speaker, français/English/québécois 
James Bullock @jbprime.bsky.social Dean @dornsife.usc.edu
Brian Siana @briansiana.bsky.social Astronomy Professor at UC Riverside / Chair of the Riverside Board of Public Utilities / Heat pump evangelist
Sean D. Johnson @seanjohnson.bsky.social Extragalactic astronomer; LSA Collegiate Fellow & Assistant Professor at @michiganastro. Dog lover. Pronouns: he/him/his 🏳️🌈
Brett Morris @brettmorr.is Astronomer, software engineer.
Supporting space telescopes, open science, and data access in astrophysics.
Thrilled and haunted by dots on stars.
http://brettmorr.is/
Posts my own, not my employer's.
Space Telescope Science Institute @stsci.edu STScI is the Science Operations Center for Webb, Hubble, and Roman space telescopes, & Mission Operations Center for Webb. We help humanity explore the universe with advanced space telescopes and data archive. news.stsci.edu
MAST - Mikulski Archive for Space Telescopes @mast-news.bsky.social MAST archives UV/optical/IR data from NASA missions, contributed science products, and analysis tools. https://archive.stsci.edu
This account is primarily to inform our users of updates. For the general public, follow https://bsky.app/profile/stsci.edu
Erik Tollerud @eteq.bsky.social Astrophysicist, Python coder, and general lover of nature in all its forms. Tweets are my own. He/they.
Marc Postman @astromarc.bsky.social Astronomer studying galaxies, clusters, and dark matter. Envisioning the future of space astronomy. My posts are my own views. (he/him)
Dr. Susan E. Mullally @mustaric.bsky.social Astronomer -- Baltimore -- Exoplanets -- Mother -- Choir -- Games
Posts my own.
Josh Peek @jegpeek.bsky.social 
Kelly Lepo @kellylepo.bsky.social Astronomer | Science communicator | Adult Lisa Simpson
Freelance writer and editor. Former Education and Outreach Scientist at the Space Telescope Science Institute (@stsci.edu) supporting JWST.
Also on Mastodon: @KellyLepo@scicomm.xyz
Dr. Scott W. Fleming @scottwfleming.bsky.social Branch Manager at Space Telescope Science Institute working in the MAST archive. Astronomy PhD. Studies stars and exoplanets. Loves programming. Opinions are my own. He/Him/His
John Debes @johndebes.bsky.social ESA/AURA astronomer at STScI. Opinions my own. I study exoplanets and disks around stars.
Dr. Emily Rickman @astrorickman.bsky.social Astrophysicist - European Space Agency/STScI 🇪🇺🇺🇸 Direct Imaging Exoplanets & Brown Dwarfs✨🇬🇧🇦🇺🇨🇭🏳️🌈 she/they
David Rodriguez @strakul.bsky.social Astronomical Data Scientist at STScI/MAST in Baltimore.
Opinions are my own.
Homepage: strakul.com
Blog: strakul.com/blog- T Tom Donaldson @tomdonaldson.bsky.social Software engineer. Opinions are my own.
Laura Watkins @laurawatkins.bsky.social Head of the Science Policy Division at STScI. Research focuses on kinematics and dynamics of globular clusters and dwarf galaxies. Views my own.
Christine Pulliam @christinepulliam.bsky.social Astronomer. Aviator. Always looking up. Cat mom. Science communicator/media relations at STScI. Views are my own.
Martha Boyer @marthaboyer.bsky.social I'm an Astronomer, primarily studying dust-producing stars with JWST and HST. Opinions are my own. Pround Minnesotan. Abolish Ice. She/Her
Chris Evans @chrisinbaltimore.bsky.social European Space Agency HST & JWST Project Scientist; Head of ESA Office, STScI; views my own
janiceleeastro @janiceleeastro.bsky.social ✨ looking to our future with NASA's Habitable Worlds Observatory (SuperHubble!) & AI
✨ studying star formation and star clusters in nearby galaxies with PHANGS, Hubble, JWST
Mike Engesser @mercury-astro.bsky.social Staff Scientist for JWST/MIRI at the Space Telescope Science Institute. Opinions my own. 
Daft Pict @daftpict.bsky.social Astronomer at Space Telescope Science Institute.
Part-time Sound Engineer.
Renfest afficianado....
Enjoys shooting, archery, edged weapons, flying, skydiving, science and all things related.
Bruce Garrett @brucegarrett.bsky.social Systems software engineer for the Space Telescope Science Institute. Cartoonist, photographer, artist. AAEC, WDW annual passholder.
Agata Rożek @agastro.bsky.social Astronomer looking at chunks of metal and rock in space. Currently at Royal Observatory Edinburgh. PhD. she/her. Asteroid 63440
Claudia Scarlata @scorfano.bsky.social 
Sandro Tacchella @sandrotacchella.bsky.social Assistant Professor of Astrophysics, studying the evolution of galaxies, University of Cambridge, Fellow of St Edmunds College 🇨🇭🇺🇲🇰🇷🇬🇧
Hayley Roberts @astrohayley.bsky.social 📡 Postdoctoral Astrophysicist & Data Scientist at Zooniverse
University of Minnesota ✨ astrohayley.com
Marcel Haas 🟥 @harcel.bsky.social Associate prof of data science in population health @ Leiden University Medical Center. Former astrophysicist: extronomer! Beer sommelier. Pythonista. Aspiring Bayesian. Dad. Puzzle solver and Go/Baduk player.
Tanya Urrutia @astrobellatrix.bsky.social Astronomer at Leibniz Institut für Astrophysik in Potsdam (🇬🇹 / 🇩🇪).
https://www.tanya-urrutia.com
Andy Lawrence @e-astronomer.bsky.social Active Galaxy Nut and Space Environmentalist.
Read Losing The Sky at Amazon, Apple Books, or Google Play.
More grooviness at https://andyxlastro.me 
Arthur Loureiro @cosmonist.bsky.social aka, the grumpy ranting cosmologist.
Galaxies of the Universe, UNITE!
🇧🇷 Cosmologist based in 🇸🇪
PI Researcher @ The Oskar Klein Centre
& Imperial College visiting researcher.
https://medium.com/@cosmonist
He/Him - ENG & PT (Opinions all mine)
JWST Observer @jwstobserver.bsky.social JWST Observer is managed by STScI and provides astronomers with the most up-to-date information, news, and events related to observing with JWST.
Chris Conselice @conselice.bsky.social Astronomer and Professor, Manchester
John Stott @jpsastro.bsky.social Astrophysicist at Lancaster University. Mainly galaxy evolution, environment and feedback. Recent foray into machine learning and icebergs.
L. Y. Aaron Yung @lyaaronyung.bsky.social Giacconi Fellow @stsci 💫 🚀 | I make Semi-analytic forecasts for #JWST & #RomanST 🌌🔭 | formerly @NASAGoddard @FlatironCCA @RutgersU | HK→HI→SF→NY/NJ→MD/DC→TW
Aayush Saxena @aasaxena.bsky.social astrophysicist at university of oxford | very distant galaxies and supermassive black holes with JWST
Matthieu Schaller @mschaller.bsky.social Lecturer in numerical cosmo @ LION+STRW Leiden University. Lead dev. of @swiftsimulation.bsky.social astro and cosmology code. #HPC. Creator of fake universes; all including cheese. 🇨🇭
www.matthieuschaller.com
Minh Huynh @astrominh.bsky.social Radio astronomer. Politics nerd. Avid ultimate frisbee player. Comic book geek and MCU fan. Opinions own. she/her, dr 🏳️🌈
Maddie Marshall @madelinemarshall.bsky.social Tasmanian astrophysicist studying black holes in the early Universe. Currently an Oppenheimer Fellow in Los Alamos, New Mexico ✨
Slavko Bogdanov @slavkobogdanov.bsky.social Astrophysicist ordinaire. Columbia University.
slavko.org
Ken Rice @kenrice.bsky.social Interested in #scicomm, in particular about astronomy and climate change. Professor of Computational Astrophysics and Head of Institute for Astronomy, Univ. of Edinburgh. Views own, of course.
Aswin Vijayan @aswinpvijayan.bsky.social Loves making random foods
Research Fellow, @Astonomy Centre at SussesUni
Simulations of galaxy formation, high-z galaxies, dust
he/him
Views my own
Jasleen Matharu @drjmatharu.bsky.social MPIA Prize Fellow at The Max Planck Institute for Astronomy. 🔭 Galaxy Evolution with Space-based Slitless Spectroscopy 🔭. Former DAWN Fellow at The Cosmic Dawn Center and Postdoctoral Research Associate at Texas A&M University. 🇬🇧 -> 🇺🇸-> 🇩🇰 -> 🇩🇪.
Pickwick triplet (not that one) @paulmul.bsky.social 
Becky @beckymullen.bsky.social Nerd in Scotland. Cat haver; game player; pizza enjoyer. Trains are cool. Ask me about inventiveness.
We got a 10-24 in West Babylon.
Bi. She/her.
Dr Wendy Williams @cygnusww.bsky.social SKAO project scientist - Radio Astronomer - LOFAR minion - South African at large - opinions my own - she/her
Astronomy Picture of the Day 🪐 @apod.shinyakato.dev Official Mirroring APOD BOT for Bluesky.
https://apod.nasa.gov/apod/lib/about_apod.html
Src:
https://apod.nasa.gov/apod/astropix.html
http://star.ucl.ac.uk/~apod/apod/astropix.html
Maintained by @shinyakato.dev
Bill Keel @ngc3314.bsky.social Astronomer, husband, father, staff of cats, sometime trombonist
Laura Kreidberg @lkreidberg.bsky.social Exoplanets, atmospheres, aliens. Director of the APEx Department at the Max Planck Institute for Astronomy.
David W Hogg @hogg.bsky.social Astronomer, physicist, statistician, data analyst, open scientist. (Totally not at all the other David Hogg). I live on Lenape land.
Eilat Glikman @eilatg.bsky.social Astrophysicist. Quasar enthusiast. Physics professor. Mother, etc. Misanthrope who loves humanity. Why can’t we get this thing right? 
Charlotte Olsen, PhD 🏳️🌈🔭🌌 @charlotteeureka.bsky.social Astronomy PhD in NYC - galaxy star formation historian - 🏳️🌈they/she🏳️🌈 - LSST DA Catalyst Fellow and part time Adj Prof at CUNY City Tech - books, records, and thrift stores will be my downfall - passionate about all things galaxies, teaching, and LCFC 🦊💙
John F Wu @jwuphysics.bsky.social Tenure-track astronomer working on galaxies, machine learning, and AI for scientific discovery. Opinions my own. He/him.
Website: https://jwuphysics.github.io/
Britt Lundgren @brittlundgren.bsky.social quasar gazer | science & education policy wonk | prof. of physics & astronomy at a public liberal arts college | Illinoisan
Michelle Collins @runningastronomer.bsky.social ✨Astronomer searching for and studying the faintest galaxies in the Universe ✨co-host of the @starxiv.bsky.social podcast ✨ Enthusiastic-but-mediocre runner 🏃🏻♀️ vegan 🌱 She/her
Dr. Rebecca Larson @saturnswings.bsky.social Ph.D. Astrophysics | U.S. Air Force Veteran | www.saturnswings.com
Matthew Kenworthy @mattkenworthy.bsky.social Professor of astronomy working at Leiden Observatory in the Netherlands on the direct imaging of extrasolar planets and transits of giant ring systems || Opinions my own || Will tell Dad jokes for cash. https://kenworthy.space/
Brooke Simmons @vrooje.net Professor of Astrophysics: Galaxies, Black Holes, the Changing Sky. Also Zooniverse humanitarian and disaster relief lead. People first, then science. She/her
CosmicPinot @cosmicpinot.bsky.social Brian P. Schmidt: Astronomer at Mt Stromlo Observatory, Vigneron and Winemaker Maipenrai, Vice Chancellor Australian National University, Nobel Laureate Physics
Jane Rigby @janerigby.bsky.social Astronomer, human, described by adjectives too dangerous to list. Views mine
Reach for the stars. But not that one — it’s about to go boom
Laura Lopez @ohdearz.bsky.social Professor of astronomy 🔭 at Ohio State. Co-chair of @aascsma.bsky.social. Alum of UCSC and MIT. She/her 🇲🇽
Astronomer Royal for Scotland | Catherine Heymans @astroroyalscot.bsky.social Astronomer Royal for Scotland, Professor of Astrophysics, Edinburgh University. Author of How to Design a Universe. @astronomerroyal on insta (She/her)
Julianne Dalcanton @dalcantonjd.bsky.social Astrophysicist at the Center for Computational Astrophysics & U. Washington. 
Vivian U @justtheletteru.bsky.social Associate Scientist at Caltech/IPAC studying black holes and galaxy mergers with a nerdy sense of humor. Roman Proposal Lead. < 15 minutes of fame from PBS NOVA showcasing JWST science. TEDxMB 2024 speaker. Views are my own.
🌐 https://vivian-u.github.io/
Karen Masters @karenlmasters.bsky.social Prof. of Astronomy and Physics, Haverford College. PI of Galaxy Zoo. Radio astronomer. Check out my latest book “The Astronomers Library” about books, libraries and astronomy - three of my favourite things. Brit/US.
Chris Lintott @chrislintott.bsky.social Astronomer, writer and zookeeper. Oxford, Gresham and the Zooniverse. The human half of the Dog Stars podcast. New book: 'Our Accidental Universe' (UK/rest of world) and 'Accidental Astronomy (US) now out.
Benne W. Holwerda @benneholwerda.bsky.social Dad, Professor of Astronomy at the University of Louisville. He/Him/hey you. Opinions are my own. As are the typos.
Astronomy, datascience, ethics & occasional US/EU politics. 
Grant Tremblay @granttremblay.com Astrophysicist at the Center for Astrophysics | Senior Vice President, American Astronomical Society
Jason Wright @astrowright.bsky.social Professor of Astronomy and Astrophysics at Penn State.
Son, father, partner, scientist, teacher, student, human, Earthling.
Mostly posting astronomy. Mostly.
Mike Boylan-Kolchin @mbkplus.bsky.social Dad, husband, astrophysicist, dog herder. Samuel T. and Fern Yanagisawa Regents Professor in Astronomy at UT Austin. This is a personal account and the views expressed in my posts here are mine. https://mrbk.github.io
Dr Jan Eldridge @astro-jje.bsky.social NZ theoretical astrophysicist studying exploding binary stars. Sci-fi addict, feminist, non-binary femme. Pronouns: she/her/they. All views my own.
Yvette Cendes @whereisyvette.bsky.social Astronomer here! I’m a Hungarian-American radio astronomer, alias /r/Andromeda321 on Reddit. Assistant professor at the University of Oregon 
Dr. Lucian Walkowicz @notnotrocketscience.com Astronomer, movement artist, & educator based in Chicago 🛸 Founder, Not Not Rocket Science ✨Co-founder, the JustSpace Alliance 🚀they/them causing mayhem
notnotrocketscience.com
Sarah Kendrew @sarahkendrew.bsky.social European Space Agency Astronomer at the Space Telescope Science Institute in Baltimore, MD. Team Lead for the MIRI instrument on JWST. Runner, dog mum, cyclist. 🇬🇧🇧🇪 Opinions my own.