Judy Schmidt @geckzilla.bsky.social Galactic Janitorial Services
Dr Shanika Galaudage @astronerdika.bsky.social Diary of a space detective (astrophysicist)🕵️
Postdoc at CIERA + Adler Planetarium
Just going with that Universe flow ✨
🇦🇺 -> 🇫🇷 -> 🇺🇸
linktr.ee/astronerdika | 🇦🇺🇱🇰 (she/her)
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
Denis Erkal @derkal.bsky.social Astrophysicist working on dark matter, near-field cosmology, and galaxy formation. All opinions are my own. He/him.
Galaxy Zoo @galaxyzoo.org Help scientists understand how galaxies evolve in the Universe at galaxyzoo.org - we've classified millions of galaxies since 2007 and we are still going.
Will Clarkson @drcheers.bsky.social Astronomer, dad. Faculty at the University of Michigan-Dearborn.
arXiv astro-ph.GA Astrophysics of Galaxies @astrophga-bot.bsky.social Unofficial bot by @vele.bsky.social w/ http://github.com/so-okada/bXiv https://arxiv.org/list/astro-ph.GA/new
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Veritasium @veritasium.bsky.social An element of truth - videos about science, education, and interesting things.
https://linktr.ee/veritasium
China Space Watch @chinaspace.bsky.social China's space program has made remarkable strides in recent years, positioning itself as a major player in space exploration. Including Space Station Construction and Manned Missions. As well as Robotic Missions to The Moon's Far Side and Mars! 🚀🚩👨🏼🚀🌕🏳️🌈🏳️⚧️🕊️
The Star Formation Newsletter @starformationnews.org Since 1992, the Star Formation Newsletter has been the premier destination for news about star & protoplanetary disk formation. We publish a monthly newsletter of papers, interviews, upcoming conferences, and more!
Web: https://starformationnews.org
Juliette Becker @jcbecker.bsky.social Currently trying to understand planet formation as a professor of astronomy at the University of Wisconsin-Madison
Tara Murphy @taramurphy.bsky.social Professor and Head of School of Physics at the University of Sydney. Radio astronomer looking for transients and gravitational wave events. OzGrav CI. Teaching physics and the apocalypse. https://taramurphy.github.io
Views expressed here are my own :)
Euclid UK @eucliduk.bsky.social We're the UK-based scientists working on ESA’s Euclid space telescope, on a mission to map the dark Universe! 🔭 🌀
🏠 https://eucliduk.net/rssse.html
NE Ohio Regional Sewer District @neorsd.org yes, really the Northeast Ohio Regional Sewer District in cleveland, ohio. Customer Relations: 216.881.8247
https://www.neorsd.org/social
Summer ✨ @sumrtime.bsky.social Huge fan of space, both personal and outer.
Astrophysicist 💫
Scicommer ⚛️
Space Cadet 🚀
Lunatic 🌙
TBTL10 📻
summerash.com
Adam Frank @adamfrank4.bsky.social Astrophysicist. Author of The Little Book of Aliens. Stuff shows up at The Atlantic, NYTimes, Big Think, etc. The Ramones, the Mets and lots of video games.
Dr. Ryan French @ryanjfrench.bsky.social British Solar Astrophysicist at the Laboratory of Atmospheric & Space Physics ☀️ Author of ‘Space Hazards’ and 'Little Book of Eclipses' - (views my own)
Catherine 🌌 @catieslaughts.bsky.social Imagining others complexly | VIEWS MY OWN
Star Cluster Memes For Stellar Overdensity Teens @starcluster.meme star cluster memes worse than your isochrone fit 📉
voted #1 Blanco 1 fan by the Blanco 1 fan club
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Meg Schwamb @megschwamb.bsky.social Planetary scientist & astronomer at Queen’s University Belfast: KBOs, Planet Four(Mars), exoplanets (Planet Hunters NGTS) ,LSST SSSC co-chair. Opinions posted are my own. Pronouns: she/her
Brandon Bright-Barker, PhD @astrobarker.bsky.social computational astrophysicist, developer, appalachian starboy, miso’s owner
Nicholas Cross @wfastronomer.bsky.social Astronomer, survey data processor. Works in the Wide Field Astronomy Unit at the Institute for Astronomy at the University of Edinburgh. Working on WFCAM/VISTA Science Archives and ESA-Euclid. Runner.
Alexis Quintana @alexis-space.bsky.social Astronomy postdoc fellow in LIRA (@liraastro.bsky.social), Paris Observatory (@obs-paris-psl.bsky.social) in 🇨🇵.
Works on OB stars, stellar associations & clusters and Galactic structure & dynamics.
From 🇧🇪, previously in 🇬🇧 and 🇪🇦.
he/him- M Cam Swiggum @mac0598.bsky.social Astronomy PhD student @ University of Vienna
Juan Diego Soler @juandiegosoler.bsky.social Colombiano • Astrofísico • Divulgador científico • Columnista
@elespectador.com • Autor de #RelatosDelConfinDelMundo: https://tinyurl.com/libroJDS
Erin Sikorsky @erinsikorsky.bsky.social Director, Center for Climate and Security, DC
Former US Nat'l Intelligence Council
Wisconsinite at heart
Posts my own
Thomas Beatty @tgbeatty.bsky.social Astronomer/Exoplanetary Scientist/Professor at the University of Wisconsin
James Davenport @jradavenport.com Astronomy professor in Seattle. Coffee drinking, year-round-plaid wearing, joke telling space dad. Searching for ET, caring for humans.
https://jradavenport.github.io
🔭☕️🎤
Event Horizon Telescope @ehtelescope.bsky.social We are the Event Horizon Telescope: a global collaboration that captured the first-ever image of a black hole using a virtual Earth-sized telescope.
Instagram, Facebook, Twitter, Mastodon: ehtelescope
eventhorizontelescope.org
US National Gemini Office @usngo.bsky.social The US NGO at NSF NOIRLab supports Gemini Observatory
users in the stages of the astronomical observing cycle, from proposal to data reduction. Visit our website at https://noirlab.edu/science/programs/csdc/usngo.
Kyle Cook @kwcookastro.bsky.social PhD Candidate astronomer at the University of Louisville. LADUMA member. Roller coaster fanatic. 🏳️🌈 (he/him)
Mark Popinchalk @markpopinchalk.bsky.social Astrophysics postdoc at AMNH | writer for @astrobites.bsky.social | planetarium presenter | Likes ultimate frisbee, volleyball, and all kinds of games. He/Him
Senator Tammy Baldwin @baldwin.senate.gov Official Bluesky account of United States Senator Tammy Baldwin's office, proudly working for the State of Wisconsin.
Barack Obama @barackobama.bsky.social Dad, husband, President, citizen. barackobamabooks.com
Benjamin Pope @benjaminpope.bsky.social Australian astronomer
he/him
Sydney/Gadi
Ben Lew @astrobenlew.bsky.social NASA Ames /BAERI postdoc, working on brown dwarf and exoplanet atmospheres 
Abby Lee @abigaillee.bsky.social Astrophysics postdoc @ucberkeleyofficial.bsky.social
Mrs. Betty Bowers @mrsbettybowers.bsky.social I am America’s Best Christian™. But you knew that. You can find exclusive content here: https://www.patreon.com/c/MrsBettyBowers
TITHE: https://www.paypal.com/donate/?hosted_button_id=Q6REDKBBVUJLU
Dr Laura Driessen @astrolaura.com Radio astronomer and science communicator at the University of Sydney. Die hard Melbourne demons fan. Opinions are my own. www.astrolaura.com
Professor Carole Mundell @cmundell.esa.int Director of Science, @esa.int; Head of the European Space Astronomy Centre, Madrid. Astrophysicist, science diplomat, ex-Science Council President; ex-Chief Scientist Adviser & International Science Envoy, UK FCDO. She/her. My views.
AAS Nova @aasnova.org Highlighting recent astronomy research from the American Astronomical Society's journals. Editors: Kerry Hensley & Susanna Kohler. Discover what's new in the universe at aasnova.org. Header image: https://bit.ly/4vPAvD
Jimmy Kimmel @jimmykimmel.com adventurer
ESA Operations @operations.esa.int From Earth orbit to deep space: sharing the excitement of real-time mission operations at the European Space Agency. Home for ESA's teams working on Planetary Defence, Space Weather, Clean Space & Space Debris.
esa.int/Operations
esa.int/Space_Safety
Stellar Origins 2025 @ Vienna @stellarorigins2025.bsky.social Sept. 15-19, 2025 - Vienna (Austria) ✨🌌
Topics: Galactic and Extragalactic Star Formation, Structure & Dynamics of the ISM, IA and ML
website: https://stellarorigins2025.univie.ac.at/
Posts under the hashtag: #stellarorigins2025
Keith Smith @drkeithsmith.bsky.social PhD, occasional astronomer, talking head, science geek, cynic. Senior Editor at @Science.org, responsible for research papers in astronomy and planetary science. Views own, duh. Bio: https://www.science.org/content/author/keith-t-smith
DESI Survey @desisurvey.bsky.social The DESI Survey will measure the properties of Dark Energy using a survey of 30+ million galaxy redshifts.
Graham Doskoch @astrohde.bsky.social Astronomy PhD candidate at WVU working on pulsars and gravitational wave detection with PTAs. Runner, avid reader, Astrobites alum.
Astro Plot of the Week @plotastro.bsky.social Under new management
Submit entry by tagging @PlotAstro.bsky.social
Max-Planck-Institut für Astronomie @mpi-astro.bsky.social Astronomical research institute in Heidelberg, Germany / Astronomisches Forschungsinstitut in Heidelberg
Impressum: https://www.mpia.de/impressum
Adam McMaster @adammc.space I’m an astronomer who is searching for black holes with the help of citizen scientists at https://black-hole-hunters.org
I write an astronomy newsletter at https://three-alpha.space and a blog at https://www.twelvemountains.com
ESA Space Transport @transport.esa.int Latest news on @esa.int's launches, projects and developments in space transportation.
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Jennifer L. Hoffman ✨😷 @astroprofhoff.bsky.social Astronomer, professor, birder, singer, cat communer (she/her)
University of Denver, @chamberlin-obs.bsky.social
Past Grand Canyon Astronomer in Residence
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.
Matthew Harer @triplebadger10.bsky.social Family forward. Neonatologist who loves the kidneys, #NeoSky, #NeoNephroSky. Badger enthusiast, Wisconsin homer, and Madisonian for life. Running, Biking, Golf, and Pickleball for hobbies.
Tod Lauer @todlauer.bsky.social Extragalactic astronomer (black holes, galaxies, galaxy clusters, stellar pops) who also dabbles in planetary astronomy. Really, basically a pixel pusher.
Astronomy 🔭 @astronomy.bsky.social Facts, Information, and Images related to Space and Astronomy.
Copyright with respective people and organizations shared for educational purposes.
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.
Mario Livio @mariolivio.bsky.social Astrophysicist
Author: The Golden Ratio; Brilliant Blunders; Galileo and the Science Deniers;
🌏 Is Earth Exceptional w/ Jack Szostak, OUT NOW 🌍
🔭 Formerly with Hubble Space Telescope for 24 years
Caltech IPAC @caltechipac.bsky.social IPAC at Caltech partners with NASA, NSF, JPL, and the worldwide research community to advance the exploration of our Universe. www.ipac.caltech.edu
Alejandro Soto @soto.space Planetary scientist and aerospace engineer. He/him. https://www.alejandrosoto.net
My writing represents me alone and not my employer nor anyone else.
Eliot Halley Vrijmoet @eliothalley.bsky.social dynamics of all the little guys: M dwarfs + BDs + planets
Smith College + FCAD postdoc fellow + RECONS
🏳️⚧️ he/him since 2012 🏳️🌈 http://www.science.smith.edu/~evrijmoet
Stand Up for Science! @standupforscience.net We mobilize the fight for science and democracy - because science is for everyone! 🧬🧪🌎
Donate here: https://bit.ly/SUFS_GIVING
Learn more ⬇️
https://linktr.ee/standupforscience_bluesky
Ned Wright @mapping3k.bsky.social UCLA astronomer working on space CMB and IR. On the COBE, WMAP, SIRTF and WISE missions. Asteroid (241527). See my cosmology tutorial at https://www.astro.ucla.edu/~wright/cosmolog.htm
Simons Observatory @simonsobservatory.org Figuring out some of the mysteries of the Universe from Chile at simonsobservatory.org
Haifeng Wang @astrohaifeng.bsky.social Love the Milky Way-Local Universe-Disk Systems-Dark Matter-New Physics with Data-Model-Simulations-Instruments. Love sports and history and travel, etc. Personal ORCID: https://orcid.org/0000-0001-8459-1036
Alexandra Witze @alexwitze.bsky.social Science journalist and correspondent for Nature (she/her). Opinions = my own. Reach me at alexwitze.01 (Signal), witzescience (@gmail.com), or awitze (@protonmail.com).
All the Galaxies! @allthegalaxies.galaxyzoo.org Posting galaxies classified by the public on Galaxy Zoo, @galaxyzoo.org
Created and maintained by @davidoryan.bsky.social with backup support from @vrooje.net and @emily.space
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
ESA Space Science @science.esa.int Keeping you posted on space science activities from the European Space Agency.
Web: http://www.esa.int/science
Privacy Notice: esa.int/connectwithus
#astronomy #space #science
European Space Agency @esa.int Elevating the future of Europe through space.
Please see our Privacy Notice: https://esa.int/connectwithus
Dr. Heloise Stevance @sydonahi.bsky.social Astrophysicist - Schmidt A.I. in Science Fellow - Oxford Uni - she/they
Sky surveys
Exploding stars
Hungry black holes
AI Literacy
Beatrice Tinsley Lecturer 2021
Caroline Herschel Prize 2024
hfstevance.com
George Takei @georgetakei.bsky.social Husband, Actor, Activist, Uncle George to the Internet 🖖
Kyle Cranmer @kylecranmer.bsky.social Director Data Science Institute @UWMadison, Professor of Physics,
EiC @MLSTjournal. Physics, stats/ML/AI, open science.
Sloan Digital Sky Surveys @sdssurveys.bsky.social Mapping the Universe since 1998. Featuring @milkywaymapper.bsky.social, @blackholemapper.bsky.social, and @localvolumemapper.bsky.social. We'll let you know when we are done.
sdss.org
Knud Jahnke @knudjahnke.bsky.social Astronomer, Euclid Consortium functionary; likes black holes, galaxies, and sustainable research.
Drew Weisserman @drewweisserman.bsky.social McMaster Astronomy PhD student. send me pictures of your pets or I will steal them. he/him 🏳️🌈
check out my research: https://drewweis.github.io/
Andrew Fullard @astrofullard.bsky.social ICER research consultant at Michigan State U, TARDIS, SNe Ia, massive stars, binaries, polarization, Python, tabletop gaming, Lego, he/him. Personal account.
@astromikehudson.bsky.social @astromikehudson.bsky.social Astro prof at U Waterloo.
isak @isakndbr.bsky.social your friendly neighbourhood open cluster enthusiast| galactic archeology & mapping | he/him
@indebetouw.bsky.social @indebetouw.bsky.social 
Chris Conselice @conselice.bsky.social Astronomer and Professor, Manchester
Lyndie Chiou @lyndie.bsky.social Science writer | Scientific American | New Scientist | NYTimes | Quanta Magazine | #Black
Stories on physics, math, astronomy! Also plays trombone.
Dominique Segura-Cox @seguracox.bsky.social Radio astronomer studying protostars. Redneck. First-gen student. "Yes, and..." Assistant Professor of Astronomy at the University of Rochester. Personal account. I like leadership and mentoring. seguracox.com
Claudia Scarlata @scorfano.bsky.social 
lilly @lillykormann.bsky.social astrophysics phd student at @univie.ac.at
she/her
classified as a moving group
website: lillykormann.github.io
Sarah Loebman @sloebman.bsky.social Astrophysics faculty, diversity, equity, & inclusion enthusiast, passionate about Big Data and the Milky Way.
Clara Moskowitz @clarakm.bsky.social Senior Editor at Scientific American, covering astronomy, physics and math. She/her 🏳️🌈
Paul Crowther @paul-crowther.bsky.social Astrophysics prof at Sheffield University researching massive stars and related stuff. Interested in UK science policy. RAS Vice-President (Astronomy) 2025-2027
Erik Tollerud @eteq.bsky.social Astrophysicist, Python coder, and general lover of nature in all its forms. Tweets are my own. He/they.
Scott Gaudi @scottgaudi.bsky.social Astronomer @OSUAstro/exoplanet enthusiast/aspiring astrobiologist/accidental astropolitician. He/him. Proud:autistic/poly/gay/queer/nerd/man. Be relentlessly kind.
Mordecai-Mark Mac Low @astrocurator.bsky.social Researching the formation of planets, stars, and galaxies, mostly through numerical simulations. Curator-in-Charge, Dept. of Astrophysics, American Museum of Natural History. All opinions are my own and not the institution's.
Kelsey Johnson @profkelsey.bsky.social Mother, astrophysicist, educator, writer, artist, thinker about things. Views expressed are mine. Duh. 
Thomas Kupfer @thomkupfer.bsky.social Professor of Astrophysics at the University of Hamburg. Member of the BlackGEM, SDSS-V and LISA collaboration. PI ERC project CompactBINARIES (2023 - 2028)
Mike Kuhn @mikeakuhn.bsky.social Astronomer interested in star formation and statistics. Senior Lecturer at the University of Hertfordshire. Formerly Caltech, Universidad de Valparaíso, and Penn State. https://star.herts.ac.uk/~kuhn/
Karin Sandstrom @karinsandstrom.bsky.social Astronomer. Professor at UC San Diego. Lover of coffee, interstellar dust, California, nerdy stuff. she/her
Josh Peek @jegpeek.bsky.social 
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
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