Evie Ahrer @eahrer.bsky.social Exoplanet Atmospheres 🪐🪐
Austrian, junior research group leader at MPIA Heidelberg
evamariaa.github.io
Jodrell Bank @jodrellbank.bsky.social Radio astronomy observatory, research centre, UNESCO World Heritage site, beautiful visitor galleries, free parking, and great coffee 😀📡🌟
🔗 https://www.jodrellbank.net/
Banner © Dr Anthony Holloway
Al Yankovic @alyankovic.bsky.social You know... the weird one.
Behrens Science Museum @bsmuseum.org Building a museum of science and skepticism in Washington DC. BSmuseum.org
Opinions are my own.
Zohran Kwame Mamdani @zohrankmamdani.bsky.social Mayor of New York City
Stefan Payne-Wardenaar @stefanpw.bsky.social I make astronomy (and other science) visualizations in Blender.
Sarah Johnston @sarahdoesastro.bsky.social PhD student at Durham University researching GPU offloading for the SWIFT code and mixed dark matter models
Also regularly found in the theatre
International Astronomical Youth Camp @iayc.bsky.social The International Astronomical Youth Camp (IAYC) is a summer camp promoting astronomy in a unique international atmosphere, that has been bringing together participants (ages 16-24) from around the world since 1969 🌌🔭
Find out more on our website: iayc.org
Astronomical Society of Edinburgh @astronomyedinburgh.bsky.social We love sharing our passion for astronomy. We've been holding meetings in Edinburgh since 1924. Come to one of our meetings, in person or online - visitors are always welcome.
#astronomyedinburgh #edinburgh #scotland
www.astronomyedinburgh.org
Kerkasiel Kampen @kerkasielkampen.bsky.social Wij luiden de klok voor kinderen. Want gewortelde kinderen zijn al thuis. Die zet je niet uit!
www.kerkasielkampen.nl
derek guy @dieworkwear.bsky.social Menswear writer. Editor at Put This On. Words at The New York Times, The Washington Post, The Financial Times, Esquire, and Mr. Porter.
If you have a style question, search:
https://dieworkwear.com/ | https://putthison.com/start-here/
Brennan Lee Mulligan @brennanleemulligan.bsky.social Please consider donating to the Palestine Children’s Relief Fund —> https://www.pcrf.net
Rika Smith @iamrikasmith.bsky.social BSc STEM Astrophysics #OpenUniversity #OUWales
BSc computer science (current) #OU #OUfamily
Married to my soul mate, mother.
Electric car driver.
95% Irish DNA, from Glasgow living in South Wales
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
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
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
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
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 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 the upcoming 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
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
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.
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 
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
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.
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.
Sophia Gad-Nasr @astropartigirl.bsky.social I do cosmology and astroparticle theory. I pick apart the Universe to figure out how it works. Science Advisor. Dark Matter hunter.
🇵🇱✡️🇪🇬☪️
Nicole Gugliucci 🔜 DRAGONCON @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
Dr. Laci Brock 🪐 @stellerarts.com ✨ science meets art
🔭 planetary astro PhD + artist
🎨 space-inspired paintings & sci comm
🪶 bird nerd • gamer • cloud watcher
⬇️ art shop, email list, contact
https://stellerarts.com
Nora's Guide to the Galaxy @ngttg.bsky.social I love space!
PhD, Astrophysics
SFF Author
🚀🌌👩🚀🌠🪐
🔗: https://galaxy.nora-bailey.com/linktree
Physgal ⚛️ @physgal.bsky.social University physics lecturer and Associate Dean, Learning. Physics demystifier. Supporter of girls and women in physics. CAP Teaching Medal 2018, 3MNTF 2023. She/her Ph.D.
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
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
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.
Hank Green @hankgreen.bsky.social Long Time Internet Guy
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 
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)
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
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
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.
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
Corey S. Powell @coreyspowell.bsky.social Fascinated by things very big, very small, and beyond the limits of the human senses. Founder of OpenMind: www.openmindmag.org Creator of the Invisible Universe column: https://invisibleuniverse.substack.com/
Clara Nellist @particleclara.bsky.social Particle Physicist working on the ATLAS Experiment at CERN and Science Communicator
Makes videos about physics on YouTube, Insta and TikTok 
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
Dr. William O. Balmer @balmer.bsky.social working class astronomer, science journalist, author. 51 peg b fellow at NW. phd from JHU.
blogs from astrowill.page, cv at wbalmer.github.io
Josh Peek @jegpeek.bsky.social 
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
Hayley Roberts @astrohayley.bsky.social 📡 Postdoctoral Astrophysicist & Data Scientist at Zooniverse
University of Minnesota ✨ astrohayley.com
Lindsay R. House @lindsayinthehouse.bsky.social Astronomer. Dark Energy Explorers on Zooniverse. Personal website: lindsay.house/
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
Michael Merrifield @astromikemerri.bsky.social Emeritus professor of astronomy at the University of Nottingham. Too frequent appearances on YouTube. All my own views.
Dra. Junellie Perez @spacejunellie.bsky.social PhD Candidate in Earth & Planetary Sciences at Johns Hopkins University 🌌🛰️
Soon to be teaching astronomy and physics at University of Alabama at Birmingham! ✨️
She/her/ella 💕 Views are my own
Dr. Luisa Rebull @lrebull.bsky.social Astrophysicist and domestic goddess! Any opinions here are just mine and do not necessarily represent those of NASA or Caltech. 
Naztronomy @naztronomy.com I'm Naz! An astrophotographer from of Boston. I post astrophotos as well as videos which I create to spread the good word about space.
shop.naztronomy.com/product/astronomy-calendar-by-naztronomy-2026
naztronomy.com
youtube.com/Naztronomy
Dr. Caprice Phillips @capricephillips.bsky.social NHFP Sagan Fellow@UCSC 🍌🐌|RCSA Fellow| Chancellors Postdoctoral Fellow| brown dwarfs & exoplanets| Black In Astro VP|plan(e)t mom 🪴/🪐|she/her/hers
Website: https://capricephillips.space
Pride in STEM @prideinstem.bsky.social Award-nominated Charity showcasing/supporting LGBTQIA+ people in Science, Technology, Engineering & Maths. Skeets by @DrCarpineti.bsky.social
🏳️🌈🏳️⚧️
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. 
Danny Milisavljevic @danmil.bsky.social Associate Professor of Physics and Astronomy at Purdue University. Excitable Explorer of the Universe. Opinions are my own.
Andrei-Cătălin @acpopa.bsky.social i do astro at uni côte d'azur and soon in keele | prev. (astro)physics @ucl @roma2
Dr Vicky Fawcett @astrofawcett.bsky.social @eso.org Fellow in Garching studying active galaxies ✨ Science communicator, music lover
www.astrofawcett.com
Anne Liljeström @anneliljestrom.bsky.social An outreach astronomer by day, here for other sciences and history, mental health, human rights, LGBTQ+, climate. 🎲🎮🍋🪨💤 | Agender, demi. FIN/EN, they/them.
🖊️📘Miksi Kuu ei putoa? Lasten kysymyksiä avaruudesta https://tinyurl.com/miksikuu
📷 Mikko Käkelä
Helen Usher @tyseren.bsky.social Amateur astronomer battling South Wales weather!
PhD student at the Open University studying Rosetta's comet and ProAm collaboration
www.cometchasers.org education and outreach programme lead
Director https://britastro.org/sections/education-outreach
James Durbano 🇨🇦 @durbano.bsky.social I'm a Canadian astronomer who is always working hard to promote #astronomy education by encouraging people, especially young people, to spend some time looking up. 🔭
I'm also the owner and operator of a small portable planetarium.
HOYS @hoys.bsky.social HUNTING OUTBURSTING YOUNG STARS
The HOYS citizen science project works with amateur astronomers on long-term photometric monitoring of young stellar clusters to find outbursting and other interesting objects.
https://hoys.space/
Rene Fransen @renef.bsky.social Science communication at University of Groningen and freelance science writer & editor (www.scidutch.nl) Born at 320 ppm
Genevieve Marshall @genmarshall.bsky.social Head of Development and Engagement, International Astronomical Union
@ Leiden Observatory
Stargazer ✨ Gender equity. Mental health.
Scottish/Dutch. Gamer. Avid fantasy nerd. Views own.
Art: Gerry Arthur @gerryart.bsky.social
Phillip Hahn @astrophil.de Astronomy, astrophotography & white water kayaking.
Personal account
Nikki Miller @nikkimiller.space Postdoc at Uppsala University studying M-dwarfs and eclipsing binary stars. Also: astronomy camps, music, languages, photography & board games.
From 🏴 - lives in 🇸🇪 - often found in 🇩🇪
nikkimiller.space | iayc.org | she/they
Emily Hunt @emily.space Postdoc @univie.ac.at working on star clusters & machine learning
Passionate about a better future for science communication via @astrosky.eco
🏳️🌈 🏳️⚧️ (she/her), Ⓥ
Website: https://emily.space
GitHub: https://github.com/emilyhunt