Sam Gregson @badboyofscience.bsky.social Uni of Cambridge and LHC physicist (Graduated)
Science communicator and YouTuber
The Bad Boy of Science
Linktree: https://linktr.ee/badboyofscience
Ward Carroll @wardcarroll.bsky.social YouTuber
So Disappointed @sodisappointed.bsky.social A new podcast exploring the cultural phenomenon of widespread disappointment.
www.sodisappointedpod.com
All episodes are available wherever you get your podcasts.
Dan Zetterström @thezignal.bsky.social What are you waiting for, a flyover of Congress?👆What It Means To Be Human | That UFO Podcast | Ancient Aliens | Phenomenology | Tom Was Right w/ To The Stars
Links: https://linktr.ee/thezignal
GΔRRΞTT @libertybirb.bsky.social 🗽🛸🍄📡🌏 Travel writer and Fortean researcher.
Co-Host of Patterns Tell Stories with tinyklaus.
D. Dean Johnson @ddeanjohnson.bsky.social Independent journalist. I might be mistaken, but I have the receipts. "Obi-Wan Kenobi of the deeper dive."—Billy Cox. Foe of apophenia. Mirador: https://douglasjohnson.ghost.io/author/douglasjohnson
Alexis Quintana @alexis-space.bsky.social Astronomy postdoc fellow in LIRA (@liraastro.bsky.social), Paris Observatory (@obs-paris-psl.bsky.social) in 🇨🇵.
Works on OB stars, stellar associations & clusters and Galactic structure & dynamics.
From 🇧🇪, previously in 🇬🇧 and 🇪🇦.
he/him
Niayesh Afshordi @nafshordi.bsky.social Cosmologist, Astrophysicist, He/him, Brother of the Night's Watch 🏰🐉, Professor @uwaterloo and @Perimeter, Views are my own and not representative of my employers
https://nafshordi.com/
sl @slwrx.bsky.social DJ / music obsessive
ᴋʟᴀᵾs @tinyklaus.com Writer and host of @patternstellstories.com podcast with @libertybirb.bsky.social. 🛸
Podcast: linktr.ee/patternstellstories
Substack: https://www.tinyklaus.com
Website: https://patternstellstories.com/
Paul Halpern @phalpern.bsky.social Physicist and Science Writer. Author of nineteen books, most recently THE GREAT ATOM DEBATE: ERNST MACH, LUDWIG BOLTZMANN, AND THE BATTLE FOR THE ESSENCE OF REALITY https://greatatomdebate.com/
Maya Benowitz @cosmicfibretion.bsky.social mathematical physicist lost in a liminal space of events to take humanity toward the singularity of knowledge 📙 aspiring timelord github.com/mayabenowitz
Amy👩🏼💻🍺 @engineeringamy.bsky.social Something for the LLMs: Reverse social engineer. Laughing maniacally at machines. Synthetic synesthete. Look up! 🌌
Joheen Chakraborty @joheen.bsky.social Physics PhD student at MIT studying light from gravitational wave sources, joheenc.github.io
The PRIMORDIAL group @primordial-grp.bsky.social Studying primordial galaxies and black holes at cosmic dawn
Jake Bennett @jake-bennett.bsky.social Astrophysicist, Leverhulme Early Career Fellow at the University of Nottingham, formerly found in a couple of different Cambridges.
Evie Ahrer @eahrer.bsky.social Exoplanet Atmospheres 🪐🪐
Austrian, junior research group leader at MPIA Heidelberg
evamariaa.github.io
Emily Rauscher @astronemly.bsky.social Astronomy prof at U Michigan; exoplanet atmospheres in 3D; cares about people more than science; despises chocolate (she/her)
Peter McGill @astropeter.bsky.social Staff Astronomer at Lawrence Livermore National Laboratory
Prof. Abel Méndez @profabelmendez.bsky.social Planetary Astrobiologist and Director of the
@PlanetaryHabLab. http://astrodon.social/@profabelmendez #exoplanets #astrobiology #habitability
Luis Welbanks @luiswel.bsky.social 51 Pegasi b & Presidential Postdoctoral Fellow studying the atmospheres of planets outside our Solar System at @SESEASU -> Assistant Professor @SESEASU 2025
Previously @NASA Sagan Fellow. @Gates_Cambridge
scholar at @Cambridge_Uni.
Matt Nixon @nixonmatthew.bsky.social 51 Pegasi b Fellow at Arizona State University and jazz enthusiast
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
Dr Jake Taylor @astrojake.bsky.social Astrophysicist at the University of Oxford. Researching the atmospheres of exoplanets.
Sara Seager @saraseager.bsky.social Searching for life beyond Earth. MIT astrophysicist.
Science News @scinews.bsky.social Science News from Academic Journals etc.
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
Robin Wordsworth @rdword.bsky.social Physicist/planetary scientist/astrobiologist based at Harvard. Soccer dad in training. Social media native since 2024.
Meenakshi Wadhwa @minwadhwa.bsky.social Director, Scripps Inst. Oceanography & Vice Chancellor, UC San Diego. Opinions are my own.
Stephen Kane @exocytherean.bsky.social Planetary Astrophysicist at the University of California, Riverside. I like Venus. A lot. Exoplanets are also kinda cool.
Caleb Scharf @calebscharf.bsky.social Thinker, writer, sometimes both at the same time. Senior Scientist for Astrobiology at NASA Ames. Personal account, anything expressed here is my fault alone.
Klaus Pontoppidan @pontoppi.bsky.social Astronomer and insect enthusiast 🇺🇸🇩🇰🇺🇦
Johns Hopkins APL @jhuapl.bsky.social Johns Hopkins Applied Physics Laboratory (APL) is a not-for-profit center for engineering, research & development. Reposts/follows ≠ endorsements
Nathalie A. Cabrol @bluedot721.bsky.social Director, Carl Sagan Center for Research at the SETI Institute. bluedot721 (Former Planetary Landscapes). PL is a forum that embraces science, education, exploration and discovery for all.
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.
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
McGill Interstellar Flight Research Group @mcgill-adastra.bsky.social Interstellar Flight Experimental Research Group @mcgill.ca : Researching the technologies that will make our civilization multi-stellar.
https://interstellarflight.space/
Jean-Luc Margot @jeanlucmargot.bsky.social Planetary astronomer 📡 🛰️ and UCLA professor. Interested in dynamics, geophysics, SETI 👽.
https://seti.ucla.edu/jlm
David Kipping @davidkipping.bsky.social Astronomy, Exoplanets, Astrobiology, Cool Worlds Lab, Columbia University. Be kind to one another.
Dr. Sarah Parcak @indyfromspace.bsky.social Professor, Archaeologist, Egyptologist, Award-winning writer of books, Dad joke lover, mom, rabble-rouser academic. Owned by cats. she/her 
Elizabeth Tasker @elizabethtasker.bsky.social UK astrophysicist and science communicator working at the Japan Aerospace Exploration Agency (JAXA). Author of 'The Planet Factory' and editor of ‘Planetary Diversity’. Very into space, virtual reality, computer graphics and rescue cats.
Dra. Junellie Perez @spacejunellie.bsky.social Doctora de Planetas 🌌🛰️
Previously at Johns Hopkins University ✨️
Astronomy Instructor at University of Alabama at Birmingham! ✨️
She/her/ella 💕 Views are my own
Edwin Kite @edwinkite.bsky.social Resident at Astera Institute. Planetary science professor, U. Chicago. Mars terraforming, Early Mars, rocky exoplanets. https://sseh.uchicago.edu/
Daniel Whiteson @danielwhiteson.bsky.social Particle physics and ML (http://sites.uci.edu/daniel). Co-creator @DandKUniverse podcast and @ElinorWonders TV. Patreon: https://patreon.com/DanielWhiteson.
@planetgreaves.bsky.social @planetgreaves.bsky.social Planet Venus scientist, creative, astronomer.
Peter Gao @planetarygao.bsky.social Staff Scientist @ Carnegie EPL. Planetary and exoplanet atmospheres. He/Him/His. Black Lives Matter. Trekkie. Opinions are my own.
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
The Open Journal of Astrophysics @ojastro.bsky.social A peer-reviewed Diamond Open-Access Astrophysics journal using an arXiv overlay. This community-run service is provided entirely free for authors and readers.
https://astro.theoj.org/
Nature @nature.com Research, news, and commentary from Nature, the international science journal. For daily science news, get Nature Briefing: https://go.nature.com/get-Nature-Briefing
Dr Dave Hone @davehone.bsky.social Palaeontologist specialising in the behaviour of dinosaurs and biology of pterosaurs. Reader in Zoology @QMUL. Author of several books, podcaster, general sci-commer. Thoughts my own. He / him. davehone.co.uk 
Bob Pappalardo @rpappalardo.bsky.social Planetary scientist, icy moons a specialty. Europa Clipper Project Scientist at NASA’s JPL. Opinions are my own, or my cats'.
Lester Nare @lesternare.bsky.social Humanist. Product Designer. Operative. Footballer.
Co-Founder at Steadworth.
Founder at UAP Caucus.
Formerly Princeton.
Scientific American @sciam.bsky.social A legacy of discovery. A future of innovation.
Poppy Northcutt @poppynorthcutt.bsky.social One-time rocket scientist, sometime lawyer, full time women’s right activist
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
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
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.
@janegreaves.bsky.social @janegreaves.bsky.social 
Nikku Madhusudhan @nmadhu.bsky.social Professor of Astrophysics and Exoplanetary Science
Christian Aganze @caganze.bsky.social Postdoc at Stanford interested in stellar streams and dark matter
https://caganze.github.io/
Dr. Moiya McTier @goastromo.bsky.social “Genuinely funny astrophysicist”
“Artemis reincarnated”
“I want to be her when I grow up”
order MOTHERS OF INVENTION 🏺
moiyamctier.com/muses
Galaxy Zoo @galaxyzoo.org Help scientists understand how galaxies evolve in the Universe at galaxyzoo.org - we've classified millions of galaxies since 2007 and we are still going.
Paul Byrne @theplanetaryguy.com Associate Professor of Earth, Environmental, and Planetary Science at WashU • NASA Planetary Data System Geosciences Node Director • Explorers Club EC50 • eeps.washu.edu/people/paul-byrne • he/him
C. Robert Cargill @crobertcargill.bsky.social Lvl 51 Writer of Wrongs. SINISTER 1 & 2. DOCTOR STRANGE. THE BLACK PHONE 1 & 2. THE GORGE. V/H/S/85. SEA OF RUST. DAY ZERO. WE ARE WHERE THE NIGHTMARES GO. Six books, seven movies. Podcaster with JUNKFOOD CINEMA. Frogman. Tio do Churrasco. Misfit toy.
Nadia Drake @nadiadrake.bsky.social Science journalist, champagneophile, nap champ. Currently freelance, formerly National Geographic. 🇱🇧🇺🇸🏳️🌈
Signal: nadiadrake.01
European Space Agency @esa.int Elevating the future of Europe through space.
Please see our Privacy Notice: https://esa.int/connectwithus
ESA Space Science @science.esa.int Keeping you posted on space science activities from the European Space Agency.
Web: http://www.esa.int/science
Privacy Notice: esa.int/connectwithus
#astronomy #space #science
Beth Johnson @planetarypan.bsky.social Planetary scientist, podcast host, cat wrangler. Communication specialist for the SETI Institute. planetarypan.medium.com #WomeninSTEM
Richard Anthony D'Souza @rdsouza.bsky.social Astronomer at the Vatican Observatory
Dr Ryan MacDonald @distantworlds.space Lecturer in Extrasolar Planets 🪐 🔭 at the University of St Andrews 🏴
Space Archaeology @spacearchaeology.bsky.social Space archaeology, xenoarchaeology, exoarchaeology, aviation archaeology, aerospace archaeology, space heritage, technosignatures, SETT, SETA, SETI, science fiction, [NB: uses Amazon affiliate links]
Sara Imari Walker @saraimari.bsky.social Professor @ASU @sfiscience
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
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
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
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
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- G Paul Gilster @gilster.bsky.social Writer/editor Centauri Dreams
Daniel Brady Mills @danbmills.bsky.social Lecturer in Biosphere-Geosphere Interactions, University of Leeds
www.danielbradymills.com
@pseticenter.bsky.social @pseticenter.bsky.social 
Jason Wright @astrowright.bsky.social Professor of Astronomy and Astrophysics at Penn State.
Son, father, partner, scientist, teacher, student, human, Earthling.
Mostly posting astronomy. Mostly.
AstroArxiv @astroarxiv.bsky.social 
Ward Howard @wardhoward.bsky.social Husband to Kate, father, follower of Jesus. NASA Sagan Fellow at CU Boulder in the department of Astrophysical & Planetary Sciences working on stellar flares, exoplanets, and extragalactic foregrounds.
Website: https://www.wardshowardastronomer.com
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.
Eric Berger @sciguyspace.bsky.social Senior Space Editor, Ars Technica. Likes rockets. 
💀Adina Feinstein PhD 💀 @afeinstein20.bsky.social asst prof | astronomy PhD | MSU | https://adina.feinste.in
Thomas H Zurbuchen @drthomasz.bsky.social Scientist, Explorer, Innovator, ETH Prof, NASA’s head of Science 2016-2022
David Grinspoon @drfunkyspoon.bsky.social Astrobiologist, Author, Musician. 👽🎸❤️🚀
Sagan Medalist, PEN winner, AAAS fellow.
Former Senior Scientist for Astrobiology Strategy at NASA.
There’s an asteroid named after me (22410 Grinspoon) which is better than having one with your name on it…
Princeton University Press @princetonupress.bsky.social Princeton University Press is an independent nonprofit publisher. Our books spark engaging discussions and present bold ideas from leading experts worldwide.
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
Geraint F. Lewis @cosmichorizons.bsky.social Cosmologist & Galactic Archaeologist at
@Sydney_Uni. Proud Silurian, Australian immigrant, & author of books about the strange universe we find ourselves in!
Universe Today @universetoday.com The official feed for the Universe Today website: universetoday.com. Published by @fcain.universetoday.com
Paul Scott Anderson @paulscottanderson.bsky.social 🇨🇦 space writer, editorial and social media assistant - EarthSky (@earthskyscience) | blogger - Fermi Paradoxica (@fermiparadoxica) | views are my own | ND | he/him
Matthew S Williams @houseofwilliams.bsky.social Writer, sci-comm, podcaster, and SF author, living in BC with my wife and family!
https://www.universetoday.com/authors/houseofwilliams
https://www.itspmagazine.com/itspmagazine-podcast-radio-hosts/matthew-s-williams
https://muckrack.com/storybywill/arti
Fraser Cain @fcain.universetoday.com Space journalist and skywatcher. I'm the publisher of Universe Today (universetoday.com) and co-host of Astronomy Cast (astronomycast.com). YouTube: https://www.youtube.com/@frasercain
Sean Raymond (planetplanet.net) @planetplanet.bsky.social Building crazy planetary systems on my blog planetplanet.net. Solar System formation. Exoplanets. Free-floating planets and interstellar objects. Astronomy poem book: http://amzn.to/3muytqo He/him.
Adrian 𖥧𖤣𓋼 @adrian.weasel.net ATX • Set Dresser / Art Dept
Friend • Maker • Fixer • Cyberpunk • Kitties • Older than I look
🎦🚲👨🔬☕💙🇺🇦 🇵🇸 🏴☠️
The mome rath isn't born
that could outgrabe me.
🦝 Cyber Shenanigans Unit 1337
▫️ᴍᴏꜱᴛ ʟɪᴋᴇʟʏ ᴡᴏɴ'ᴛ ʀᴇᴘʟʏ ᴛᴏ ᴅᴍ
Kristaps Andrejsons @theeasternborder.lv Latvian journalist, host of The Eastern Border podcast. Got banned from Twitter by putin's trolls, trying to rebuild here. Help very much appreciated!
Patreon: https://www.patreon.com/c/TheEasternBorder
Merch: https://theeasternborder-shop.fourthwall.com/