Prof. Fabrizio Bucella @fabriziobucella.bsky.social Professeur des universités — Université libre de Bruxelles — Physicien
Erin Kara @erinastro.bsky.social Astronomer
erinkara.space
Jwst Feed @jwstfeed.bsky.social James Webb - Everything That's Hot 🔥
jwstfeed.com
International Space Science Institute (ISSI) @issibern.ch The International Space Science Institute (ISSI) in Bern, Switzerland, is an institute of advanced studies where scientists from all over the world meet to discuss and publish about the most-pressing science topics.
Visit us on www.issibern.ch
Payel Das @payeldas.bsky.social Surrey astrophysicist. Understanding the formation history of our Milky Way through dynamics and chemistry. Talk about papers on the Starxiv.
Randall Munroe @xkcd.com 
Michael Merrifield @astromikemerri.bsky.social Emeritus professor of astronomy at the University of Nottingham. Too frequent appearances on YouTube. All my own views.
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.
Astronomy & Astrophysics @aanda-journal.bsky.social Astronomy & Astrophysics is an international journal publishing papers on the latest findings from the astronomy and astrophysics community
https://www.aanda.org/
Institute of Astronomy, Cambridge @cambridgeastro.bsky.social News, public events, and research highlights from the Institute of Astronomy at the University of Cambridge
https://www.ast.cam.ac.uk/
4-meter Multi-Object Spectroscopic Telescope (4MOST) @4most-eu.bsky.social 
Prof. Erika Hamden @erikahamden.bsky.social Astronomy Professor at University of Arizona. Making UV detectors better, building telescopes. Intense about a lot of things! 2019 @TEDFellow
Contact: booking@ehamden.org
Instagram: https://www.instagram.com/erika.hamden/
Tiktok: tiktok.com/@erikahamden
Kat Lee @astrokat.bsky.social PhD student studying the first stars at Uppsala University! Former Astrobites author, GM, cellist, fiber crafter. Show me your cats please
PHD Comics @phdcomics.com Comics by Jorge Cham: Oliver's Great Big Universe, Elinor Wonders Why, ScienceStuff and PHD Comics
Astrobot @bot.astronomy.blue Hi! I'm a friendly bot that manages sign-ups to the Astronomy feeds.
You can sign up to the feeds with "@bot.astronomy.blue signup".
I can also tell some bad jokes 😇
Managed by @emily.space.
Gail Zasowski @zastronomerski.bsky.social Astronomer 🌌, professor at the U of Utah, mom of 2 littles. Exploring, hiking, camping, cooking, reading. Sci-fi and period romances. Definitely not writing social media bios.
Le Canard enchaîné @lecanardenchaine.fr Compte officiel du Canard enchaîné - La liberté de la presse ne s'use que quand on ne s'en sert pas. www.lecanardenchaine.fr
Science pour tous 06 @spt06.bsky.social Science pour tous 06 aide les municipalités, médiathèques, associations ou tout autre organisme des Alpes-Maritimes à mettre en place une programmation annuelle régulière de conférences scientifiques gratuites destinées au grand public.
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
RAS Journals @rasjournals.bsky.social Official account for Monthly Notices of the Royal Astronomical Society (MNRAS), Geophysical Journal International (GJI) and RAS Techniques and Instruments (RASTI). See also https://academic.oup.com/rasjournals
LIGO Scientific Collaboration @ligo.org Official account of the LIGO Scientific Collaboration. We detect gravitational waves!
Email: questions@ligo.org
Grantecan @gtctelescope.bsky.social Gran Telescopio Canarias (GTC) the largest optical/infrared telescope in the world (Roque de Los Muchachos Observatory La Palma /Spain)
Vatican Observatory Foundation @vofoundation.bsky.social The Vatican Observatory Foundation, founded in 1987, supports the research, educational, and outreach efforts of the Vatican Observatory.
The Vatican Observatory stands at the forefront of scientific research.
Euclid Consortium @ec-euclid.bsky.social Official Consortium of ESA's Euclid mission on the Universe's dark matter, energy & expansion, 15 European countries + USA + CAN + JAP, 2000+ scientists + engineers. Home: https://euclid-ec.org
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.
Astro Plot of the Week @plotastro.bsky.social Under new management
Submit entry by tagging @PlotAstro.bsky.social
ASCL (Astrophysics Source Code Library) @asclnet.bsky.social Making astrophysics research source codes discoverable since 1999
editor@ascl.net
The Astro Society @astrosociety.org The Astro Society promotes science and literacy via resources and programs that uplift community engagement through the awe and wonder of space. Founded in 1889 as the Astronomical Society of the Pacific, we are the oldest astro society in the U.S.
DESI Survey @desisurvey.bsky.social The DESI Survey will measure the properties of Dark Energy using a survey of 30+ million galaxy redshifts.
Tristan Cantat-Gaudin @cantatgaudin.bsky.social astronomer- T @teresaantoja.bsky.social @teresaantoja.bsky.social
SAGA Team @sagateam.bsky.social #SAGATeamCAMK 🔭🌟 Research group on Stellar Abundances and Galactic Archaeology. We explore the secrets of the #MilkyWay using stellar chemical abundances.
#astronomy #astrophysics #research #science #stars
https://linktr.ee/saga.team
astropy @astropy.org A community effort to develop a common core package for Astronomy in Python and foster an ecosystem of interoperable astronomy packages.
Web: astropy.org
Source: github.com/astropy/astropy
Docs: docs.astropy.org
Tutorials: learn.astropy.org
Institut d'astrophysique de Paris @iap.fr Compte officiel de l'Institut d'astrophysique de Paris (IAP), une unité mixte de recherche du CNRS et de Sorbonne Université. #HelloESR
http://www.iap.fr/
ELSA: Euclid Legacy Science Advanced analysis tools @elsa-euclid.bsky.social Pushing the boundaries of spectroscopy with the European Space Agency's Euclid space telescope. Account run by @stephenserjeant.bsky.social and the ELSA team https://elsa-euclid.github.io/
EAS Annual Meeting @eas-meeting.bsky.social Official Account of the EAS Annual Meeting #EAS2026Lausanne
https://eas.unige.ch/EAS2026/
Etienne Klein @etienneklein.bsky.social Physicien au CEA, producteur de la « conversation scientifique » sur France culture. Publie avec François Damilano « Esprit de cordée » (Arthaud)
Giorgia Busso @giobusso.bsky.social Astrophysicist working on @ESAGaia in Cambridge. Italian from Venice. Music Listener to (almost) everything. Daily cyclist 🚲 weekly rower 🚣♀️
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
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
Galaxy Map @galaxymap.bsky.social The first accurate and detailed maps of the Milky Way and ways to promote and visualize them (including VR).
Website: https://kevinjardine.dev
Tip jar: https://tiptopjar.com/kevinjardine
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.
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
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
GaiaUB @gaiaub.bsky.social Gaia group @ Universitat de Barcelona (UB) Dpt FQA, Institut de Ciències del Cosmos (ICC), Institut d'Estudis Espacials de Catalunya (IEEC) https://gaia.ub.edu/ Gaia is an astrometric mission of the European Space Agency https://www.cosmos.esa.int/web/gaia
Leibniz-Institut für Astrophysik Potsdam (AIP) @aippotsdam.bsky.social Astrophysikalische Grundlagenforschung von der Untersuchung unserer Sonne bis zur Entwicklung des Kosmos.
Webseite: www.aip.de
European Space Agency @esa.int Elevating the future of Europe through space.
Please see our Privacy Notice: https://esa.int/connectwithus
Matt Bothwell @mattbothwell.com Public Astronomer at the University of Cambridge; Bye-fellow of Girton College, Cambridge
Author of The Invisible Universe, Astrophysics for Supervillains, The Great Alien Hunt, & more
www.mattbothwell.com
The Astrosky Ecosystem @astrosky.eco We're building new social media tools for astronomers and astronomy enthusiasts online - from feeds to account hosting.
Website: https://astrosky.eco | GitHub: https://github.com/the-astrosky-ecosystem
Account managed by @emily.space
ESO @eso.org The European Southern Observatory designs, builds & operates world-class observatories on the ground for the benefit of society. More info on eso.org
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
Royal Astronomical Society @royalastrosoc.bsky.social www.ras.ac.uk
Collège de France @college-de-france.fr "Docet (omnes) omnia" 😊
Enseigner (à tous) le savoir en train de se constituer dans les #Sciences, les #Arts & #Lettres | Université PSL | www.college-de-france.fr
CNES @cnes.fr L'actu du CNES, le Centre National d'Études Spatiales. Retrouvez les 3 infos de la semaine chaque vendredi sur notre chaîne WhatsApp.
Académie des sciences @academiesciences.bsky.social 🏅Soutenir la recherche
👩🔬Transmettre les connaissances scientifiques
💡 Conseiller les pouvoirs publics
https://linktr.ee/academiedessciences
#helloESR
Nature Astronomy @natastron.nature.com A Nature journal dedicated to presenting the very best research across the disciplines of astronomy, astrophysics, cosmology and planetary science.📡
www.nature.com/natastron
Sarah Loebman @sloebman.bsky.social Astrophysics faculty, diversity, equity, & inclusion enthusiast, passionate about Big Data and the Milky Way.
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
Peter Frinchaboy, Ph.D. @pmfastro.bsky.social Professor of Star Clusters (he/him/his). Opinions mine - do not represent my employers
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/
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
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
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
Scott Trager @sctrager.bsky.social Geek. Astronomer at Kapteyn Astronomical Institute, U Groningen, NL. Sort of but not quite Dutch. Lover of loud noisy music and good food. WEAVE Project Scientist and Deputy PI. Scientific Director of NOVA but I don’t speak for NOVA on here
Anke Ardern-Arentsen @ankeaa.bsky.social 🇳🇱 Galactic Archaeologist 🔭✨, postdoc at the Institute of Astronomy in Cambridge. Married to @zachary-ardern.bsky.social, evolution-explorer
Denis Erkal @derkal.bsky.social Astrophysicist working on dark matter, near-field cosmology, and galaxy formation. All opinions are my own. He/him.
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 
Alex Ji @alexji.bsky.social Near-field Cosmologist and Assistant Professor of Astronomy and Astrophysics at University of Chicago. he/him
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“
Karina Voggel @karinavoggel.bsky.social Astronomer at the Strasbourg Observatory & CDS, working on super-massive black holes in the relics of galaxy nuclei. Can be found running otherwise.
Stacy McGaugh @dudedarkmatter.bsky.social Astronomer & Astrophysicist working on galaxies, cosmology, dark matter and modified gravity.
Academic home page: https://astroweb.case.edu/ssm
Blog: https://tritonstation.com/
ORCID: https://orcid.org/0000-0002-9762-0980
Akshara Viswanathan @astroakshara.bsky.social PhD researcher in Kapteyn Institute, Groningen, NL|
Observational astronomer investigating baby Milky Way's shenanigan |🇮🇳🇨🇦🇬🇧🇳🇱|
she/her | தமிழச்சி 
Justin Read @readdark.bsky.social Astrophysicist hunting for dark matter. All opinions my own.
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/
Florent Renaud @florenaud.bsky.social Astrophysicist making galaxies crash and computers collide. Or the other way round 🔭
Research professor (directeur de recherche) in astrophysics at CNRS / Strasbourg Observatory, France 🇫🇷 🇪🇺
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.
Matthias Steinmetz @galacticrave.bsky.social Astronomer & Astrophysicist, Galactic Archaeologist & Simulator, Husband & Dad, Director @AIP_Potsdam, backyard astrophotographer
Tadafumi Matsuno @tada-matsuno.bsky.social Astronomer
NAOJ / SOKENDAI -> Kapteyn -> Heidelberg
Morgan Fouesneau @mfouesneau.bsky.social 
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
CNRS @cnrs.fr Organisme public 🇫🇷 de recherche pluridisciplinaire, le Centre national de la recherche scientifique c'est 33 000 personnes qui font avancer la connaissance. #HelloESR
Rohan Naidu @rpnaidu.bsky.social Astronomer @ University of Hawaiʻi. 🇮🇳 →🇸🇬 →🇺🇸 https://rohannaidu.github.io/
gaia memes for parallax < 0.01 as connoisseurs @gaiamemes.bsky.social memes about your favorite telescope at L2
Astropierre @astropierre.com Médiateur scientifique, conférencier et chargé de projets. #Freelance
Ici, on parle de science, mais pas que...
Posez-moi vos questions, ça ne coûte rien ;)
Nicolas Martin @nfmartin1980.bsky.social Astronomer, CNRS/INSU researcher at Strasbourg Observatory. Local Group inhabitant.
Guillaume Langin @langinspace.bsky.social Journalist for French space media Ciel & Espace : news website, print magazine, podcasts, YT
Michaël Zemmour @michaelzemmour.cpesr.fr Enseignant chercheur en économie.
Économie politique des transformations de l'Etat social.
#econsky
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.
Mission spatiale Euclid 🇫🇷 @euclid-france.bsky.social Suivez l'aventure scientifique du télescope spatial Euclid, qui explore l'univers sombre ! Compte 🇫🇷 du consortium scientifique de la mission Euclid de l'ESA.
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
Olivier Minazzoli @ominazzoli.bsky.social Astrophysicist, specialist in relativity -- pro open-knowledge, open-source and open-data. Linux user since Debian Potato. Personal account. I like zero-knowledge, but only for proofs (zkp FTW). https://www.oca.eu/fr/olivier-minazzoli
Ciel & Espace @cieletespace.bsky.social L'Univers de l'Association Française d'Astronomie. Un bimestriel, un site web, des hors-séries et des podcasts au service d'un regard pertinent sur l'actualité.
Eric Lagadec @ericlagadec.bsky.social Astrophysicien à l'Observatoire de la Côte d'Azur.
Auteur de 'Le télescope spatial James Webb' et 'L'odyssée cosmique, une histoire intime des étoiles'
Bluesky @bsky.app official Bluesky account (check username👆)
Bugs, feature requests, feedback: support@bsky.app