4-meter Multi-Object Spectroscopic Telescope (4MOST) @4most-eu.bsky.social 
Eduardo Vitral @evitral.bsky.social Astrophysicist 🛰️🌌⚫️ | Globular clusters | Dwarf galaxies | Black holes | Dark matter | 🇧🇷🇮🇹🇫🇷🇺🇸🏴 | He/him
Website: https://eduardo-vitral.github.io
IOPP Machine Learning and AI @iopp-mlresearch.bsky.social Discover our #openaccess journals devoted to the application and development of #MachineLearning and #ArtificialIntelligence for the sciences, health, earth and engineering.
ML Series: https://bit.ly/3FUYyNe
AI for Science: https://bit.ly/3QZlflu
Cathrin Machin Space Art @cathrinmachin.bsky.social Space Artist & Telescope Operator 🚀
Grab my 2026 Calendar here 👇
https://catmachin.com/products/2026-calendar
Anke Ardern-Arentsen @ankeaa.bsky.social 🇳🇱 Galactic Archaeologist 🔭✨, postdoc at the Institute of Astronomy in Cambridge. Married to @zachary-ardern.bsky.social, evolution-explorer
Francesca Fragkoudi @astrofrancesca.bsky.social Astrophysicist | Associate Professor & UKRI FLF at the Institute for Computational Cosmology, Durham | Interested in: galaxies; dynamics; bars; dark matter; science4peace; cats (not necessarily in that order) | Cypriot #κυπραία #kıbrıslı- M Matthieu Le Lain @matlastro.bsky.social Astronomy and astrophysics sprinkled with Deep Learning... or the other way around ! PhD student working on Foundation Models for Astronomy. #galaxy
@paulajofre.bsky.social @paulajofre.bsky.social 
Julianne Dalcanton @dalcantonjd.bsky.social Astrophysicist at the Center for Computational Astrophysics & U. Washington. 
Pallab Ghosh @pallabg.bsky.social I am a science correspondent for BBC News. I post mostly about science, sometimes science journalism and very occasionally, Spurs. Please share any hot stories, ideas and opinions on all three and anything else currently inspiring you.
Carolyn Fahm @carolynfahm.bsky.social Retired biochemist, physics aficionado, medium distance walker, living seizure free after laser thermal ablation surgery, bereaved mother
Jwst Feed @jwstfeed.bsky.social James Webb - Everything That's Hot 🔥
jwstfeed.com
Jim Al-Khalili @jimalkhalili.bsky.social Jim Al-Khalili CBE FRS. Academic, author, broadcaster. Distinguished Emeritus Professor of Physics @UniofSurrey,
https://jimal-khalili.com
https://www.youtube.com/@UnbaffledScience
Morgan Fouesneau @mfouesneau.bsky.social 
Caroline S-T @drcst.bsky.social Uni lecturer chasing the academic dream! Specialise in using AI approaches within Applied Nuclear Physics. www.drcst.com
Katie Mack @astrokatie.com Cosmologist, pilot, author, connoisseur of cosmic catastrophes. TEDFellow, CIFAR Azrieli Global Scholar. Domain verified through my personal astrokatie.com website. She/her. Dr.
Personal account; not speaking for employer or anyone else.
Mike Brown @plutokiller.com Astronomer, planet hunter, Pluto killer, bear whisperer, finger-wrapped dad. Dangerous secularist. Foot soldier in the War on Cars. He/him.
mikebrown.caltech.edu
Emily Lakdawalla 🏳️⚧️ Uranus Expert @elakdawalla.bsky.social Planetary scientist, freelance science writer and space artist, queer, ADHD, mom. Turns out it’s hard to be all those things at once. Shop at elakdawalla.Etsy.com
Nora's Guide to the Galaxy @ngttg.bsky.social I love space!
PhD, Astrophysics
SFF Author
🚀🌌👩🚀🌠🪐
🔗: https://galaxy.nora-bailey.com/linktree
Sarah Hörst @planetdr.bsky.social Professor of planetary science at Johns Hopkins. Titan’s biggest fan. Pomeranian wrangler. Runner. Love many, trust few, always paddle your own canoe. She/her. sarahhorst.com
Planetdr.26 on signal
Dr. Raven the Science Maven @ravenscimaven.bsky.social I'm Raven Baxter, Ph.D. I'm molecular biologist and science educator who loves sharing science with the world! thesciencemaven.com
Jonathan McDowell @planet4589.bsky.social Astrophysicist
Support the work of Jonathan's Space Report:
https://www.gofundme.com/f/fund-jonathans-space-report-library-transition
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.
Michele Bannister @astrokiwi.bsky.social Planetary astronomer @UCNZ: envisioning worlds from here and elsewhere, in a dark & glorious sky. Rutherford Discovery Fellow & Assoc. Professor. Asteroid (10463). Pākehā; she
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 
Nicole Gugliucci @noisyastronomer.com Physics professor, astronomer, educator, science communicator in NH, US. Lover of dogs, spec-fic, weights, and good trouble. She/they.
Opinions my own. RTs≠endorsements. Most older posts auto-delete.
I swear a lot.
https://bio.link/noisyastronomer
Astrobites @astrobites.bsky.social Digestible summaries of the latest astronomy research. Written by an international team of grad students for undergrads! Supported by the @AAS_Office. #scicomm
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)
Saavik ‘Careful of the Ankle’ Ford @saavikford.bsky.social CUNY Astro prof, AMNH research assoc, runner, astronomer, crafter, camper, gardener, mom, all opinions completely my own (she/her)
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
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.
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
Black In Astro @blackinastro.bsky.social Celebrating and amplifying the Black experience in space-related fields. EST. 2020
✉️ blackinastro@gmail.com
Website: blackinastro.com
https://www.blackinastro.com/black-space-week-2026
Markus Pössel @mpoessel.de Astronomy and relativity outreach (Tweets in German & English) | personal account | he/his | managing scientist @hausderastronomie.bsky.social | director @astro4edu.bsky.social |outreach @mpi-astro.bsky.social | Seestar enthusiast
Erin M. May, PhD @astronomay.bsky.social Staff Astronomer @ a place - Exoplanet Atmospheres. All data is good data.
Plus Knitting, Stickers, Baking, and other crafty things. Toddler mom.
Previously known as @_astronoMay on the other site.
ErinMMay.com
SiderealStickers.Etsy.com
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
Dr. Timothy Pickering @tepickering.bsky.social astronomer, telescope wrangler, grizzled pythonista, bluesky boomer
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
🔭☕️🎤
Dr Becky Smethurst @drbecky.bsky.social Astrophysicist studying how supermassive black holes affect galaxies (s/h). I get overly enthusiastic about space (and cats) on YouTube: http://www.youtube.com/drbecky
Prof. Carl E. Fields 💥 @carlnotsagan.github.io Computational Astrophysicist and Assistant Professor @uarizona.bsky.social & @stewardobservatory.bsky.social. #Forbes30u30, Science 2021. He/Him. carlnotsagan.github.io.
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
Prof Anna Watts @profannawatts.bsky.social Professor of Astrophysics @ Univ. of Amsterdam. Neutron stars, pulsars, dense matter, X-ray astronomy. Mom, Migrant. "Particles in stars blah blah". Does science with NICER on the International Space Station and schemes for EVEN BIGGER SPACE TELESCOPES.
American Astronomical Society (AAS) @aas.org The mission of the American Astronomical Society is to enhance and share humanity’s scientific understanding of the universe as a diverse and inclusive astronomical community.
aas.org
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.
Andrew Mann @amann.bsky.social Associate professor of Physics and Astronomy at UNC Chapel Hill studying young exoplanets and stars. Dad to one human and one cat. 🏳️🌈💗💜. Carrboro Citizen. http://andrewwmann.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
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/
Joe Callingham @astrojoe.bsky.social Dutch-Australian | Astrophysicist | Head of the Square Kilometre Array (SKA) Science Group at ASTRON | Associate Professor at the University of Amsterdam
NSF–DOE Rubin Observatory @vrubinobs.bsky.social Get ready for a new era in astronomy and astrophysics with Rubin Observatory!
Para español siga a Instagram: http://instagram.com/rubin_observatory
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
Haus der Astronomie @hausderastronomie.bsky.social Zentrum für astronomische Bildungs- und Öffentlichkeitsarbeit in Heidelberg | Center for Astronomy Education and Outreach in Heidelberg, Germany. Posts in erster Linie auf Deutsch but also in English
https://www.haus-der-astronomie.de/de/impressum
Adrian Price-Whelan @adrian.pw (he/him)
Astronomer;
Leads the Nearby Universe group at the Flatiron Institute / CCA;
Asst. Director of Scientific Software @ Simons Foundation;
Astropy;
Music;
https://adrian.pw 
Emily Hunt @emily.space Postdoc @univie.ac.at working on star clusters & machine learning.
Also: open web developer & enthusiast, working on @astrosky.eco and more
🏳️🌈 🏳️⚧️ (she/her), Ⓥ
Website: https://emily.space
GitHub: https://github.com/emilyhunt
Alex Ji @alexji.bsky.social Near-field Cosmologist and Assistant Professor of Astronomy and Astrophysics at University of Chicago. he/him
The StarXiv ✨ podcast @starxiv.bsky.social A podcast where Payel Das (@payeldas.bsky.social) and Michelle Collins (@runningastronomer.bsky.social) discuss papers from astroph
Starxiv.com
Spotify - https://shorturl.at/xdTFw
Apple - https://shorturl.at/nKFNj
RSS - https://rss.com/podcasts/starxiv
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
Sarah Pearson @spacewsarah.bsky.social (she/her)
Astrophysicists, Assistant Professor at U. Copenhagen, former NASA Hubble Fellow at NYU - Dark matter, stellar streams, galactic dynamics. SciComm: writer, talks, YouTube
http://drsarahpearson.com/
Justin Read @readdark.bsky.social Astrophysicist hunting for dark matter. All opinions my own.
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.
Nicolas Martin @nfmartin1980.bsky.social Astronomer, CNRS/INSU researcher at Strasbourg Observatory. Local Group inhabitant.
Minas Karamanis @minaskar.bsky.social Astrophysicist and proud cat dad. He/him
Views are my own.
Jos de Bruijne @astrojos.bsky.social Father of 2, husband, hobby wildlife photographer, #AFOL. Astronomer at European Space Agency @ESA working @ESA Gaia & @ESA ESDC. Tweets are my own. He/him/his.
Denis Erkal @derkal.bsky.social Astrophysicist working on dark matter, near-field cosmology, and galaxy formation. All opinions are my own. He/him.
Sven Buder @astrosven.bsky.social European in Australia. Galactic Archaeologist and sports enthusiast
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.
David Hendriks @davidhendriks.bsky.social Final year astrophysics PhD, branching out into data science topics.
https://davidhendriks.com
Paul Stevenson @pdstevenson.bsky.social I don’t like cat pictures, yet here i am on the internet
How would you react if I said that I'm not from Guildford after all, but from a small planet somewhere in the vicinity of Betelgeuse?
Marcel S. Pawlowski @8minutesold.bsky.social Astrophysicist studying cosmic choreographies of dwarf galaxies. DIAS Professor in Physics at the University of Southern Denmark (SDU). Street Photographer (he/him).
Autor des Buchs „Von tanzenden Galaxien, Dunkler Materie, und anderen kosmischen Rätseln“
Ioana Ciucă @errai34.bsky.social AI hacker and astronomer @Stanford · Founder & Co-Creator @universetbd.org. You can find my website at www.iciuca.com.
Pau Ramos @brugalada.bsky.social Milky Way dynamicist, working mostly with Gaia data, and also a member of the JASMINE project. Currently living in Japan 🇯🇵
I love cinema, music, manga and the stories I get to experience through videogames. 
Benjamin Pope @benjaminpope.bsky.social Australian astronomer
he/him
Sydney/Gadi
Ethan Taylor @astroeth.bsky.social Postdoc apart of Surrey Astro | looking at naturally forming globular clusters within the EDGE simulation suite, and their evolution | #BlackInAstro
Paul McMillan @mcmillan-astro.bsky.social Astrophysicist working on Milky Way dynamics and Gaia data. University of Leicester. Views expressed are my own.
Website: https://paulmcmillan-astro.github.io/
Madison Walder @madastro.bsky.social (She/her) | Astrophysics PhD student @Uni of Surrey | determined to yee some haws while I'm here ✨
Akshara Viswanathan @astroakshara.bsky.social PhD researcher in Kapteyn Institute, Groningen, NL|
Observational astronomer investigating baby Milky Way's shenanigan |🇮🇳🇨🇦🇬🇧🇳🇱|
she/her | தமிழச்சி 
Peter Erwin @peter-erwin.bsky.social Astronomer studying black holes and nearby galaxies. Author of Imfit (http://github.com/perwin/imfit).
Marieke Navin @mariekenavin.bsky.social Particle physicist turned science communicator
Cole Group @colegroupncl.bsky.social We are a computational research group at Newcastle University led by #UKRIFLF Dr Danny Cole specialising in atomistic simulations in medicinal chemistry and biology https://blogs.ncl.ac.uk/danielcole/
Andrew Pontzen @apontzen.bsky.social Prof and director of the Institute for Computational Cosmology, Durham University. Author of THE UNIVERSE IN A BOX http://pontzen.uk/book
Ankita Mondal @astrowithankita.bsky.social Caffeinated Introvert, who studies galactic archaeology 🌌
PhD student at @swinburne!💫 (she/her)
Bluesky @bsky.app official Bluesky account (check username👆)
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