Terra Hunting Experiment @terrahunting.bsky.social Using the HARPS3 spectrograph for a 10-year radial velocity survey to discover Earth-like planets around solar-like stars. https://www.terrahunting.org/ #exoplanets #astronomy #instrumentation
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
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.
CosmicRami 🏳️🌈🏳️⚧️ @rami.spaceaustralia.com Astronomer, driving The Dish📡 to study pulsars in my PhD. Also, founded SpaceAustralia.com. Also, love a bit of astrophotography. Also, do everything with my little mate, Max. Also, Ultra-Gay. He/Him.
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
Robert McNees @mcnees.bsky.social Physicist and Professor at a university in Chicago. I study black holes, quantum gravity, and cosmology. Rocky Top, Tar Heel. Reposts are spooky action at a distance.
My views, not my employer's.
https://jacobi.luc.edu
https://mcnees.github.io
Nora's Guide to the Galaxy @ngttg.bsky.social I love space!
PhD, Astrophysics
SFF Author
🚀🌌👩🚀🌠🪐
🔗: https://galaxy.nora-bailey.com/linktree
Dr. Jessie Christiansen @aussiastronomer.bsky.social Caltech/IPAC Planet Hunter | Chief Scientist, NASA Exoplanet Science Institute | @TEDFellow | Science consultant | SHERA PI | My views are not the views of NASA | She/her
sanjana! @sanjanacurtis.bsky.social big fan of stars 💻✨🦫🏳️🌈
Sarah Tuttle @niais.cryptoanarchy.network "Ok. Not good. Probably bad." Disabled, queer, Jewish, cyborg, astrophysicist, abortion funder, antifascist, wielder of wrenches. Building joy with a side of chaos. "..a wizardess is never late. Nor is she early. She arrives precisely when she means to."
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.
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
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
Sera Markoff @profsera.bsky.social Plumian Prof in Astro @U Cambridge & Prof Astro-/Particle Physics @U Amsterdam. All things black hole, member: Event Horizon Telescope, Africa Millimeter Telescope, CTAO. Space, sci-fi, cats, music, valve amps, other unabashed geekery. www.seramarkoff.com
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
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
Peter Coles 🏳️🌈 🏳️⚧️ 🇮🇪 @telescoper.bsky.social Theoretical astrophysicist specializing in the Universe and all that surrounds it. Based in Ireland. Personal account. Call me old-fashioned but I don't like fascists. He/him/his.
Blog: telescoper.blog
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
🔭☕️🎤
Pauline Barmby @pbarmby.bsky.social LLM-free science: https://orcid.org/0000-0003-2767-0090, fiction: https://www.galacticwords.com. Words in Year’s Best Cdn F&SF, Utopia SF, Analog, OnSpec, MNRAS, ApJ, etc. Knitter, curler, sometime runner. 🇨🇦 & minor planet 281067. She/her.
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
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
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 
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
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
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/
A. Suárez Mascareño @asuarezmascareno.com Hunting low mass exoplanets.
Christian Fröschlin @chrfrde.bsky.social Amateur astronomer from urban 15th floor balcony. Celestron 8" / Lunt 40 / Galileoscope. Software developer. Image processing / HALCON. Fledgling skeptic. He/him.
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
Yao-Yuan Mao @yymao.bsky.social Astrophysicist at U of Utah studying small galaxies and dark matter using astronomical surveys and simulations || teacher || programmer || 茅耀元 || they/he || 🏳️🌈 || http://yymao.github.io || https://astro-outlist.github.io
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
ASCL (Astrophysics Source Code Library) @asclnet.bsky.social Making astrophysics research source codes discoverable since 1999
editor@ascl.net
Royal Astronomical Society @royalastrosoc.bsky.social www.ras.ac.uk
Linn Boldt-Christmas @nplinnspace.bsky.social 🇸🇪🚀🇪🇺 Astrophysicist in exoplanet science & space policy research 🪐🔭 Also: astrobiology, telescopes, climate, equality/EDI, and scicomm ✨ (she/her) – linnboldtchristmas.wordpress.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
Thomas Carpentier @thocarp.bsky.social PhD Researcher at the EUI in Firenze, studying the history of the European Space Agency.
Processing space telescopes data for fun
28
He/him
Fun Fact Science with Kovi @funfactscience.com Astrophysics PhD candidate studying stars that go snap, crackle, and pop - communicating scientist - meme aficionado. - M Michael Zingale @michaelzingale.bsky.social computational astrophysicist
open source tool developer
professor
blower upper of stars
can recite π to 2 decimal places from memory
star wars fan
coffee aficionado
https://zingale.github.io
Meredith Rawls @merrdiff.bsky.social Astronomer at UW, data pipeline wrangler for Rubin Observatory, satellite mitigation leader via IAU CPS SatHub, mom, violist, Ballardite (Seattle), family cargo e-bike evangelist, Episcopalian, etc. Opinions all mine
Prof. Joey "Barely a Footnote" Neilsen @joeyneilsen.bsky.social Black hole astrophysicist at Villanova. Formerly: MIT, Boston University, Harvard, Kenyon College | X-rays | husband | dad of 2 | cooking. He/him. Skeets are my own.
CatherineQ @catherineq.bsky.social Astronomer, science communicator, over-thinker extraordinaire. @AucklandUni space person @AucklandSpace. Autoimmune illness. 🇳🇿🇺🇸
💀Adina Feinstein PhD 💀 @afeinstein20.bsky.social asst prof | astronomy PhD | MSU | https://adina.feinste.in
Carl Rodriguez @carlrodriguez.bsky.social Professor of astrophysics at UNC, studying colliding black holes, swarming stars, and other things that go bump in the night. Big fan of transit, biking, climbing, Durham NC, he/him
dynamics.unc.edu
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
Benjamin Pope @benjaminpope.bsky.social Australian astronomer
he/him
Sydney/Gadi
Dr Alfredo Carpineti @drcarpineti.bsky.social Astrophysicist, science writer for @iflscience.com, geek, immigrant, and also The Astroholic. Chair of @prideinstem.bsky.social | 📖 Invisible Rainbows out May 21 | He/him | opinions are my own
https://linktr.ee/theastroholic
Andy Rivkin @asrivkin.bsky.social Planetary Astronomer on #TeamAsteroid; Gedankenband member/guitarist; “Surprisingly nonchalant” according to Wired. He/him הנני 🌻
Work Output: https://scholar.google.com/citations?user=aGVsk3IAAAAJ
Play output: https://andyrivkin.bandcamp.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. 
Dr. Kelley Hess @khesser.bsky.social Astronomer/Senior Researcher at Onsala Space Observatory/Chalmers University, Sweden; ultra runner, adventure racer, cyclist. Ironman WC 2012, 2014. Xterra World Champs 2014.
Michael Merrifield @astromikemerri.bsky.social Emeritus professor of astronomy at the University of Nottingham. Too frequent appearances on YouTube. All my own views.
Dr. Raphael Marschall @spacemarschall.net Associate Professor of Experimental Physics at the @unibe.ch
Co-I of ESA's Comet Interceptor, collaborator on NASA's Lucy and ESA's Rosetta missions.
www.spaceMarschall.net
(he/him)🇨🇭🇺🇸🇫🇷
#asteroids #comets #protoplanetarydisks #planetaryScience 🧪🔭🚀🛰️☄️
Kevin Hardegree-Ullman @kevinkhu.bsky.social Research Scientist at Caltech/IPAC-NExScI studying all things related to exoplanets! Opinions are my own. https://kevinkhu.com
Andrea Luck @andrealuck.bsky.social 🛰️🪐 Space voyager processing space images 📡💻
🎞️ HD Photostream: https://www.flickr.com/photos/andrealuck/
🎋Other places: https://linktr.ee/andrealuck
🌍Glasgow, Scotland 🌱 (He/Him)
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/
Christopher Berry @cplberry.bsky.social Gravitational-wave astrophysicist. University of Glasgow Senior Lecturer. Science, education, LEGO & cake. May contain traces of nuts
🐘 https://mastodon.online/@cplberry
📚 https://cplberry.com
Prof Stephen Serjeant @stephenserjeant.bsky.social Astronomy Prof at Open University. 26.2. #RejoinEU, £➡️€. Views not OU’s and often not even mine. He/him
🐘 https://mas.to/@stephenserjeant
🧵 https://www.threads.net/@prof.stephen.serjeant
ORCID 0000-0002-0517-7943 https://orcid.org/0000-0002-0517-7943
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
Dr Jake Taylor @astrojake.bsky.social Astrophysicist at the University of Oxford. Researching the atmospheres of exoplanets.
IAU Office of Astronomy for Education @astro4edu.bsky.social The Office of Astronomy for Education (OAE) of the International Astronomical Union, hosted at @hausderastronomie.bsky.social
https://haus-der-astronomie.de/de/impressum
European Space Agency @esa.int Elevating the future of Europe through space.
Please see our Privacy Notice: https://esa.int/connectwithus
National Radio Astronomy Observatory - NSF NRAO @thenrao.bsky.social The National Radio Astronomy Observatory is a facility of the U.S. National Science Foundation. #RadioAstronomy
📡 VLA, ALMA, VLBA, GBT, ngVLA
🔗 public.nrao.edu
GOTO Network @goto-network.bsky.social The Gravitational-wave Optical Transient Observer (GOTO) Network: identifying the optical counterparts to gravitational wave events. http://goto-observatory.org
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.
Phil Plait @philplait.bsky.social Bad Astronomer (formerly @BadAstronomer), SciCommer, Dork. Crash Course Astronomy guy. He/him. Newsletter: badastronomy.beehiiv.com
I'm self-employed so my opinions do in fact represent my company's.
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
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
Stephanie Deppe, PhD @spacescisteph.bsky.social Content Strategist at Vera. C. Rubin Observatory and lover of icy asteroids in the outer Solar System. ADHD brain in a neurotypical world. Sci-fi/fantasy nerd.
Probably hiking a mountain somewhere. she/her
Bibiana Prinoth @bibianaprinoth.ch 🇨🇭
• ESO fellow @eso.org exploring exoplanet atmospheres 🪐 🔭 🇩🇪
• PhD from Lund Observatory 🇸🇪 & ESO 🇨🇱
• passionate about all things outreach and science communication ✨
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
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
McDonald Observatory @mcdonaldobs.bsky.social Official account for McDonald Observatory, a research unit of The University of Texas at Austin, located in the Davis Mountains of West Texas.
Mount Wilson Observatory @mtwilsonobs.bsky.social Where we discovered our place in the universe.
www.mtwilson.edu
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
James Petruzzi @hawaiianimages.bsky.social Haleakala Observatory/NASA T4 Laser Ranging Project (opinions mine)
Photographer/Astrophotographer, birder, conservationist, SCUBA diver, Zen philosopher-idiot. Husband of Wendy Hatch and proud Cat Dad to Kittywampus. : ) https://www.myhawaiianimages.com
Marwella Zhang @marwellaspaceart.bsky.social Space enthusiast, amateur space artist.
Love photography and an F1 fan.
Matthias Steinmetz @galacticrave.bsky.social Astronomer & Astrophysicist, Galactic Archaeologist & Simulator, Husband & Dad, Director @AIP_Potsdam, backyard astrophotographer
Thomas Fuchs @thomasfuchs.at 20 years ago I killed Flash with my #JavaScript library script.aculo.us. Now mostly petting cats. Also dabbling in #retrocomputing and #astrophotography.
He/him.
Bluesky @bsky.app official Bluesky account (check username👆)
Bugs, feature requests, feedback: support@bsky.app