Andy Extance @andyextance.bsky.social Bag of chemicals posing as a science journalist; member of the board of the Association of British Science Writers; on the organising committee of the World Conference of Science Journalists 2027 in London, activist, widower.
IOP Publishing @ioppublishing.bsky.social IOP Publishing is a society-owned scientific publisher, providing impact, recognition and value for the scientific community. IOP Publishing’s portfolio includes more than 90 journals.
Rowan Hooper @rowhoop.bsky.social Journalist and podcast host @newscientist.com. Former Tokyoite. Books: SUPERHUMAN (2018), HOW TO SPEND A TRILLION DOLLARS (2021), TOGETHERNESS (2026). すごい!
Toby Rodel 🏳️🌈🏳️⚧️🦕🦖 @astrotobe.bsky.social (They/Them)
PhD astronomer studying exoplanets at Queen’s University Belfast
Lover of dinosaurs 
Alasdair Allan @alasdairallan.com Scientist, author, hacker, maker, and journalist. Writes, speaks, and builds. An accidental privacy advocate.
EXPeditions @expeditions.bsky.social Welcome to EXPeditions: where research meets the public. We publish open-access content by scholars from top universities—bridging the gap between academia and everyday life. Explore ideas that matter.
https://linktr.ee/joinexpeditionslinks
Leverhulme Trust @leverhulme.ac.uk An independent charity that seeks to fund blue skies research and scholarship. Follow this channel for details on upcoming grant deadlines, published research, scheme opening dates, grant announcements, events, and more. https://www.leverhulme.ac.uk/
Callan Bentley @callanbentley.bsky.social "bluebirds, bluegrass, blueschist, blue state, bluesky"
Community college geology professor in Charlottesville, Virginia, USA
UCL Centre for Climate Change and Sustainability Education @ucl-cccse.bsky.social https://climateeducation.org.uk
Haley Wahl, PhD @hwahl16.bsky.social Astrophysics PhD turned staff science writer. Astrobites alum and pulsar enthusiast 🌟
Dr. Caitlin Ahrens @ahrensscience.bsky.social Planetary scientist, lunar exploration and sustainability policy. Lunar architecture and risk analysis nerd! UMD-CRESST-II Asst. Research Scientist at NASA GSFC. Science Outreach! Ten Outstanding Young Americans 2018. WVU alum. Views are my own.
Merriam-Webster @merriam-webster.com noun | a reference source containing words alphabetically arranged along with information about their forms, pronunciations, functions, and etymologies
BOWIE+ Seminar Series @bowieseminar.bsky.social The BOWIE+ Seminar is held online on the 4th Thursday of every month and highlights exoplanet science. Find more here:
https://bowiecollaboration.github.io/seminars.html
Dr. Ana Glidden @ana-glidden.bsky.social Postdoc @ MIT EAPS • Exoplanet Atmospheres • Habitability • Planet-Star Modeling
Lee Billings @leebillings.bsky.social CHNOPS in ferruginous saline. Multicellular aerobic chemoheterotroph; symbiont of photosynthetic autotrophs. Descendant of stardust; aspiring good ancestor. Senior Editor, Scientific American. Signal: @lee_billings.81
Mariana Sastre @marianasastre.bsky.social Colombian 🇨🇴 PhD Student at University of Groningen. NL. Working on exoplanetary geophysics and magma ocean evolution🌋
Volcano-lover and photography enthusiast.
Luke Parker @luke-parker.bsky.social Astrophysics PhD student at the university of Oxford studying exoplanet atmospheres
ClimateBook @climatebook.bsky.social This is the BlueSky feed of Raymond T. Pierrehumbert, Professor of Planetary Physics at the University of Oxford. Tune in for news about Principles of Planetary Climate, and diverse science and political commentary. (Also folk music news)
L. C. Mayorga @mayorgalc.bsky.social I have arrived.
One existential crisis from being productive.
Steve Cross @drstevex.bsky.social Comedy and science communication. Trainer, consultant, speaker, host, podcaster, photographer. I help experts to be interesting, effective and public. Founder of Science Showoff he/him
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
Matt Nixon @nixonmatthew.bsky.social 51 Pegasi b Fellow at Arizona State University and jazz enthusiast
Sergey Yurchenko @trovemaster.bsky.social Physics prof at UCL applying quantum mechanics to study atmospheres of extrasolar planets.
Eamonn Kerins @eamonnkerins.bsky.social Jodrell Bank astrophysicist and exoplanet scientist. Swimmer, cyclist, runner. Sometimes all three consecutively. Occasional BBC TV space pundit. Prone to career-threatening scicomm and fundraising activities. Own views. https://linktr.ee/eamonn_kerins
Simon Clark @simonoxfphys.com Science communicator, video maker, author, podcast creator. PhD in theoretical atmospheric physics. Born at 354 ppm.
Ambassador for @coolearthaction
https://linktr.ee/simonoxfphys
Tim Minchin @timminchin.bsky.social Songwriter singer pianist actor writer comedian producer speaker poet wanker reader runner worrier.
https://linktr.ee/timminchin
Posts on this account are posted for me by my webfairy, Shell🧚♀️
Chris Hadfield @cmdr-hadfield.bsky.social Astronaut, back on Earth after 3 spaceflights. For events & media, please write to info@chrishadfield.ca. Order books at http://chrishadfield.ca/books
Matt Parker @standupmaths.bsky.social That maths guy from the internet.
@fryrsquared.bsky.social @fryrsquared.bsky.social 
Misty Bentz @astronomisty.bsky.social Astronomer and Professor at Georgia State University. She/Her. Big fan of black holes, cats, and cross-stitch. Seestar smart telescope enthusiast. Novice gardener with a penchant for native plants.
Hugh Osborn @exohugh.bsky.social I find exoplanets.
Tad Komacek @tadkomacek.bsky.social Associate Professor of Physics of Exoplanet Atmospheres in the Atmospheric, Oceanic, and Planetary Physics sub-Department of the Department of Physics and Tutorial Fellow of Somerville College at the University of Oxford, UK. 
Joey Rodriguez @astrojrod.bsky.social Prof. at MSU, Astrophysics: Exoplanets & Young Stars, Golfer, Magic the Gathering, Sports: Commanders, Mets, Knicks, Devils
Emma Louden @exoplanetemma.bsky.social Spreading practical hope with the stars 💫🌎
Astrophysicist | Strategist | Speaker
President of Slooh
Dr Anjana Khatwa @anjanakhatwa.bsky.social Earth Scientist, Writer, Presenter. 📗 #WhispersOfRock, 4 Sept Little Brown (UK), 4 Nov Basic Books (US). Own views. Likes ≠ Endorsement.
Agents: 📺 Knight Ayton Management 📚 C&W
Pre Order Whispers of Rock here:
https://linktr.ee/jurassicg1rl
Bruce Macintosh @bmacastro.bsky.social Astronomer working on imaging extrasolar planets, instrumentation, and science policy. Spare time: hiking with a golden retriever, and not playing enough boardgames.
Director, University of California Observatories, but opinions are my own. He/him
Heidi B. Hammel @hbhammel.bsky.social planetary astronomer | nearly famous | jwst interdisciplinary scientist | looks just like an ordinary mom | oboist (thoughts expressed here are my own)
Josh Lothringer @jlothringer.bsky.social Assistant Astronomer at @spacetelescope.bsky.social researching exoplanet and brown dwarf atmospheres. Opinions expressed are my own.
https://jlothringer.github.io/
Nienke van der Marel @nienkemarel.bsky.social Assistant professor of astronomy at Leiden Observatory | Leiden University | Formerly 🇨🇦&🇺🇲 | Planet formation | ALMA | Astromom | Outreach | She/her/hers | Views my own
Ben Burningham @substellarfella.bsky.social Astronomer at University of Hertfordshire studying substellar atmospheres
The Royal Society @royalsociety.org The Royal Society is a Fellowship of many of the world's most eminent scientists and is the oldest scientific academy in continuous existence.
https://royalsociety.org/
Randall Munroe @xkcd.com 
Mark Hamill @markhamillofficial.bsky.social Believe in yourself! Work hard, never give up & anything's possible! OR: Kick back, relax & aim low: You'll never be disappointed...😜
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
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
Dr. Hayley Beltz @hayleybeltz.bsky.social Postdoc in astronomy thinking about exoplanet atmospheres. Dog mom. She/her
Julien Girard @juliengirard.space astronomer, scientist and coronagraphist at STScI, exoplanet portraitist, extreme turophile, father, grumpy urban farmer hobbyist
he/him
views EN FR ES my own
https://linktr.ee/juliengirard
🦋 🐘 @djulik on 🦤
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.
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/
Dr. Simon D. A. Clark (they/them) @kelpiesi.bsky.social thirsty for knowledge
non-binary baddie
climate change, risk & disaster Phd
science | water nerd | bodybuilding | artist| founder | educator
personal account
#SciComm #SciPolicy #SciArt #LGBTQinSTEM
📷: https://www.instagram.com/kelpiesi
Dr Zoë Ayres @zjayres.bsky.social Trying to leave things better than I find them
Analytical Scientist 👩🔬 #AcademicMentalHealth advocate 🌱 Founder VoicesofAcademia.com 💬 Author of "Managing Your Mental Health During Your PhD" 📘 ADHDer 💚 Proud mum 👶 she/her. Views mine.
Dr Matt Winning @mattywin.bsky.social 🎤 Climate comedian
🌍 Lecturer in Economics of Sustainability @UCL.ac.uk
🌀 Environmental Expert
📚 Author of 'Hot Mess'
📻 Hosted BBC Radio 4's 'Net Zero: A Very British Problem'
www.mattwinning.com
https://linktr.ee/mattwinning
Compound Interest | Chemistry infographics @compoundchem.com 🧪 Infographics exploring everyday chemistry
📅 #PeriodicGraphics in @cenmag.bsky.social
🥇 ACS 2025 Interpreting Chemistry for the Public award
🏆 ABSW 2018 Science Blog Award
🖊️ Posts by @andy.compoundchem.com
🌐 Website: compoundchem.com
Prof Chris Jackson @seismatters.bsky.social Geoscientist | Occassionally on 📺 & 📻 talking about geoscience | I 🏃🏾♂️🚴🏾♂️ 🧗🏾♀️🎸🍺| he/him | 🏳️🌈🏳️⚧️| “Self-declared King of Geotwitter” (Palin, 2022) | Professional (East)Midlander 😎
michael @radplanets.com planetary scientist, allegedly 🪐
baltimorean, actually 🦀
not a professional account but I do talk about science sometimes
ig: radplanets_
Will Gater @willgater.bsky.social Astronomer, author, astrophotographer. Former science journalist now working in the UK space sector to promote research, exploration & innovation.
willgater.com
Robin Ince @robinince.bsky.social Patreon.com/robinince for blog posts and podcasts
Liz Bonnin @lizbonnin.bsky.social Wildlife Biologist | Science & Natural History Broadcaster | National Geographic Explorer | President of The Wildlife Trusts.
Listen, learn & thrive in nature
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
Dr Adam J. Finley @adamfinley.bsky.social ESA Research Fellow at ESTEC in the Netherlands. Investigating the Sun's magnetic activity, solar wind connection science, and the spin-down of Sun-like stars. Previously a postdoc at CEA Paris-Saclay and PhD at Uni of Exeter.
Dr James O'Donoghue 🪐 @interplanetary.bsky.social Planetary scientist, astronomer and science communicator 🪐. Formerly at JAXA, NASA, Boston Uni, and the Uni of Leicester. Now Associate Professor at @UniofReading. Forbes 8 Billion Under 8 Billion. Website: odonoghuespace.github.io
🪐Ashley 🔭 Lindalía☄️ @that-astro-chic.bsky.social Astrochemist ⚗️ | Planetary Scientist 🔭 | The Realest In The Streets | Founder of BlackInAstro | Fairy Godmother of Astro 🧚🏽♀️| Astronomy's fave hype woman| NASA FINESST| Ice Queen 🧊🌨| Planetary Science Doctoral Student|
Jason Wang @thejason.wang Astronomer. I take images of extrasolar planets. Sometimes I make GIFs of them. Professor at Northwestern/CIERA. jasonwang.space
Susie Dent @susiedentwords.bsky.social Always in the Corner
Douglas Long @minimillian.bsky.social Staff Scientist @ STScI
All posts are my own. (Seriously, who else would want to take credit for this nonsense?)
ORCID: https://orcid.org/0000-0002-2508-9211
Christine Pulliam @christinepulliam.bsky.social Astronomer. Aviator. Always looking up. Cat mom. Science communicator/media relations at STScI. Views are my own.
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.
Erik Tollerud @eteq.bsky.social Astrophysicist, Python coder, and general lover of nature in all its forms. Tweets are my own. He/they.
@planetgreaves.bsky.social @planetgreaves.bsky.social Planet Venus scientist, creative, astronomer.
Dr George Dransfield @exodransfield.bsky.social Exoplaneteer 🪐 Marathon runner 🏃🏻♀️ Dog mum 🐕Human mum 👶🏻 Vegan 🌱 Anglo Uruguayan 🇬🇧🇺🇾 Feminist 🙋🏻♀️ JRF @ Oxford Uni 👩🏻🎓 Broadcaster 📺 #BiInSci 🏳️🌈
Kevin Fong @drkevinfong.bsky.social My new book #MinuteSix available for pre-order! http://bit.ly/4vLOhHx Doctor/Anaesthetics/PHEM/Broadcaster. Likes to know how systems tick & what we can do to improve them. Interested in just about everything. #13MinutestotheMoon #16Sunsets
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
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
Jwst Feed @jwstfeed.bsky.social James Webb - Everything That's Hot 🔥
jwstfeed.com
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
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
Royal Astronomical Society @royalastrosoc.bsky.social www.ras.ac.uk
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/
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
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
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
Dr Emily Drabek-Maunder 🏳️🌈🏳️⚧️🧑🔬 @edrabek.bsky.social Scientist. Researcher in neuroimaging. Ex-Astrophysicist & Emeritus Astronomer. #BiInSci Views are mine. they/she/dr
Kamen Todorov @exokamen.bsky.social Data scientist, ex-exoplaneteer. 
Ben Montet @benmontet.bsky.social Astronomer at UNSW Sydney. I like stars, planets, my dog, running, cycling, and yapping.
Chicagoan living in Australia
Dr. Steve Goldman @stevegoldman.bsky.social Astrophysicist & Software Engineer for the Hubble, James Webb, and Nancy Grace Roman Space Telescopes @ The Space Telescope Science Institute.
Views are my own.
Niamh O’Sullivan @niamhk12.bsky.social DPhil student at the University of Oxford. A stellar physicist pretending to be an exoplanet finder 🌟🪐🌟
Jonathan Fortney @jjfplanet.bsky.social UC Santa Cruz Astronomy Professor, Director of the Other Worlds Laboratory (OWL). Textbook Forthcoming: "Planetary Astrophysics: Exoplanets & Solar System." Father, Husband, Minnesotan, Runner. Proud product & employee of the public school system.
Sebastian Zieba @sebizieba.bsky.social Sagan Fellow at the Center for Astrophysics | Harvard & Smithsonian. Working on the characterization of hot transiting exoplanets.
Channon Visscher @cvisscher.bsky.social Professor of Chemistry & Planetary Sciences at Dordt University (IA) and Research Scientist with the Space Science Institute (CO)
Github: https://cvisscher.github.io/
Michelle F. Bieger, PhD @mfbieger.bsky.social Writer. Data scientist/soft eng. Researcher of planetary atmospherics, AI ethics. Generally found thinking about the climate/ancient Greeks/policy/culture. 🇩🇪, live(d): 🇺🇸🇨🇳🇬🇧
michellebieger.github.io
@astrovictorsee.bsky.social @astrovictorsee.bsky.social 
Aurora Kesseli @aurorakess.bsky.social Scientist at NASA Exoplanet Archive- looking at exoplanet atmospheres- enjoys being outside, baking and eating, reading sci-fi/fantasy. she/her
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 
Tom Barclay @tbarc.bsky.social Scientist/Astronomer 🌟🌎☄️ | I work at NASA designing/building/testing space telescopes | I like punk rock and skiing
Lisa Đặng @astrolisadang.bsky.social Exoplanet Postdoc at @umontreal.ca | #firstgen high-school to PhD | Fr/En/Việt | incoming prof at @uofwaterloo.bsky.social
Alastair Claringbold @exoarcturus.bsky.social Astrophysics PhD student at Warwick - observation 🛰️ and theory 💻 of exoplanet 🪐 atmospheres 🌧️ | he/him
Thomas Beatty @tgbeatty.bsky.social Astronomer/Exoplanetary Scientist/Professor at the University of Wisconsin
Abby Beall @abbybeall.bsky.social specials editor and stargazing enthusiast @newscientist.com
Kathleen Mandt, PhD @mommascientist.bsky.social Planetary scientist and Yorkie Mom. Exploring the solar system. Opinions are my own.
Evert Nasedkin @evertnasedkin.bsky.social