Sasha Sagan @sashasagan.bsky.social 
European Space Agency @esa.int Elevating the future of Europe through space.
Please see our Privacy Notice: https://esa.int/connectwithus
Science Magazine @science.org Cutting-edge research, news, commentary, and visuals from the Science family of journals. https://www.science.org
briley lewis @briles34.bsky.social astrophysicist • NSF fellow/PhD candidate UCLA (formerly
Columbia undergrad) • crafty human • dog mom • freelance science writer in SciAm SPACE PopSci & Astrobites • she/her
Dr. Jillian Scudder @jillianscudder.com Astrophysicist, author (The Universe: A Graphic Guide, 40 Ways to Know A Star, & more), artist, sewist, science communicator. English/Français/子供の日本語。Associate Professor. hEDS ♿️. She/her. 🏳️🌈. Opinions all mine.
https://www.jillianscudder.com/books
Edwin Kite @edwinkite.bsky.social Resident at Astera Institute. Planetary science professor, U. Chicago. Mars terraforming, Early Mars, rocky exoplanets. https://sseh.uchicago.edu/
Vivian U @justtheletteru.bsky.social Associate Scientist at Caltech/IPAC studying black holes and galaxy mergers with a nerdy sense of humor. Roman Proposal Lead. < 15 minutes of fame from PBS NOVA showcasing JWST science. TEDxMB 2024 speaker. Views are my own.
🌐 https://vivian-u.github.io/
Tori Bonidie @toribonidie.bsky.social astrophysics PhD candidate at the University of Pittsburgh | astrobites author | exoplanet enthusiast | (she/her)
Caleb Harada @astronoleb.bsky.social 
Bryan Gaensler @scibry.bsky.social Dean of Science at the University of California, Santa Cruz (UCSC). Astronomer, sci-fi connoisseur, rugby league devotee, puzzled parent 🇦🇺🇨🇦. Opinions ∉ UCSC.
Santa Cruz CA, USA. He/him. bryangaensler.net
Emily Rice @emilylrice.me Astronomer at CUNY & AMNH, CEO of STARtorialist, HQ for Astronomy on Tap, I guess I’m trying to make science fun?
My shop: shop.STARtorialist.com
Dr. Adeene Denton @spacewhalerider.com Planetary scientist, earth + space science historian, dancer/choreographer, part-time community radio DJ. (they/she) 🏳️🌈
adeenedenton.com
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
Alex Klotz @aklotz.bsky.social Physics professor at California State University, Long Beach. Interested in knots, DNA, and knotted DNA.
Dr. Mace Huston @mhuston.bsky.social astronomy postdoc @ uc berkeley | gravitational microlenser | they/them
Gisele George ⚛️ @giselegeorge.bsky.social Physics PhD student @utsa
also an actress!
🎬🥼🧪👩🏽🔬🔭🛩️🛰️🪐
@AFResearchLab
📌san antonio, tx
https://linktr.ee/giselegeorge
(for talent inquiries: jt@bankstontalent.com)
SpaceKate @spacekate.bsky.social Space journalist, rocket chaser, storyteller. Advocate for diversity and women in STEM. ISU SSP12. Alter-ego of @radiokate.com
www.youtube.com/@NTKSpace
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
@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.
Dr. Ryan French @ryanjfrench.bsky.social British Solar Astrophysicist at the Laboratory of Atmospheric & Space Physics ☀️ Author of ‘Space Hazards’ and 'Little Book of Eclipses' - (views my own)
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
Brandon Bright-Barker, PhD @astrobarker.bsky.social computational astrophysicist, developer, appalachian starboy, miso’s owner
Erica Sawczynec @ericasawczynec.bsky.social University of Texas at Austin PhD candidate 🤘🏻| star & instrument (IGRINS) enthusiast ⭐️ 🔭| writer for Astrobites 🪐 | Maui, HI | she/hers
igrinscontact.github.io
Leo C. Stein @duetosymmetry.com Physics Prof @ U of MS. Sloan Fellow. Black holes, gravitational waves, general relativity & beyond. Formerly Caltech MIT Cornell. Need thin pizza + fruity coffee. He/him
🌐 https://duetosymmetry.com/
@duetosymmetry everywhere
Ethan Teng @citizenskies.com Astrophotographer & amateur astronomer at 37.8 N. Telescope operator at Lick Observatory lickobservatory.org.
Join me on Mastodon: lookup.citizenskies.com.
🔭 William Optics Redcat 51 (250mm f/4.9)
🏔️ ZWO AM5
📸 Canon EOS 6D
🖼️ queerastro.space
🏳️🌈🏳️⚧️🇹🇼 he/him
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
Brooke Simmons @vrooje.net Professor of Astrophysics: Galaxies, Black Holes, the Changing Sky. Also Zooniverse humanitarian and disaster relief lead. People first, then science. She/her
Mark Boukes @markboukes.bsky.social Associate Professor in Communication Science at the University of Amsterdam. Research interests: Journalism, Media effects, and Public opinion.
Julia Metag @juliametag.bsky.social Professor of Communication Science, Research on science communication and political communication
@ University of Muenster 
Dominique Brossard @brossard.bsky.social Professor and Chair, department of Life Sciences Communication, University of Wisconsin-Madison. Morgridge Institute for Research. #scicomm, #riskcomm and anything at the intersection of science and society
Richard Huskey @richardhuskey.bsky.social Associate Professor, UC Davis. PI, Cognitive Communication Science Lab. Associate Editor, Journal of Communication. Ski bum at heart. https://cogcommscience.com/
Neil Lewis, Jr. @neillewisjr.bsky.social Behavioral Scientist & Science Communicator.
Nancy and Peter Meinig Family Investigator in the Life Sciences and Associate Professor of Communication, Medicine, and Public Policy at Cornell University.
More here: neillewisjr.com
Personal account
Pete Etchells @peteetchells.bsky.social Professor of Psychology and Science Communication | Award-winning science writer | Screen Time | Social Media | Smartphones | Video games | https://linktr.ee/unlockedbook
Asheley Landrum @asheley.bsky.social Assoc Professor of Media Psychology & Science Communication @ Walter Cronkite School @ Arizona State University #scicomm #mediaLiteracy #mediapsych #trust
www.asheleylandrum.com
Sheril Kirshenbaum @sheril.bsky.social Science. Policy. Host of PBS Serving Up Science. www.sherilkirshenbaum.com
Lee Cronin @leecronin.bsky.social Regius Professor. Scientist, Chemist, Inventor, CEO of Chemify. Fascinated & in a state of confusion & optimism. Trying to digitize chemistry & make alien life.
Kelly Truelove @truesciphi.org Technologist | Erstwhile computational physicist | Projects at TrueSciPhi.org: Explorations in computational philosophy via AI dialogues • Curated science & philosophy podcast collections
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.
🇵🇱✡️🇪🇬☪️
Dr Space Junk (Alice Gorman) @drspacejunk.bsky.social Space archaeologist | Global Expert Group for Sustainable Lunar Activity | Asteroid 551014 Gorman | Dr Space Junk vs the Universe. https://mitpress.mit.edu/9780262539654/dr-space-junk-vs-the-universe/ | Blog https://zoharesque.blogspot.com/
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.
Dr. SkySkull @drskyskull.bsky.social Professor of optics, blogger of physics, history, & pulp fiction. Generally tries to keep things light-hearted, in spite of *waves hands at everything* (he/him) Blocking doomerism on sight.
blog: https://skullsinthestars.com/
Dr. Divya (🔔 offline) @divyampersaud.com I am having a health issue and have to be offline. My posts are scheduled with an app. I verify & host the funds for all the families I post. https://linktr.ee/divyamp 🧿
[Icon: b&w photo of a brown woman in suit & bowtie. Banner: a dark red color]
Jeff @aquariids.bsky.social Astronomy|Astrophotography|Hawai’i
VirtualAstro @virtualastro.bsky.social Author and Presenter, Astronomy, Space, Science, Nature and more!
Making stargazing fun and enjoyable for all.
nightskyshow.co.uk meteorwatch.org
Erin Biba @erinbiba.bsky.social She/Her
Freelance Science Journalist. Fact Checker.
NatGeo, BBC, SciAm, NBC News, PopSci, WIRED, and others.
Hire me to fact check your book.
I post about Jewish stuff, disability, Star Trek, and The Buffalo Bills.
Jersey girl.
Mika McKinnon @mikamckinnon.bsky.social Field geophysicist, disaster researcher, scifi science consultant, science writer, public speaker, irrepressibly curious. Occasional rock-licker, frequent devourer of board books. 🇨🇦🇺🇸
Dr. Alex Parker @alexparker.bsky.social Exploration scientist, engineer, artist. Building things for space inspired by things in the sea, and things for the sea inspired by space. Discovered a few moons along the way. 
Ariel Waldman @arielwaldman.com Antarctic Explorer + Filmmaker.
📺 Creator + host of LIFE UNEARTHED on PBS
🚀 NatGeo Explorer + NASA advisor
🔬 Often filming tardigrades
🔗 https://arielwaldman.com
Kyle Kabasares @kylekabasares.bsky.social Ex-Data Scientist for the Bay Area Environmental Research Institute at NASA Ames | Physics PhD | YouTube Partner | Fil-Am 🇵🇭🇺🇸
YouTube: https://youtube.com/@KyleKabasares_PhD
Website: https://www.kylekabasares.com
joegeiger @joegeiger.bsky.social Astrophotographer by night and UX Researcher by day. Life-long singer, guitar player and music lover. Husband, father and dog dad.
Neil Gaiman @neilhimself.neilgaiman.com Makes things up. Writes them down. Dreams about growing up but not yet. 
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
Jennifer Ouellette @jenlucpiquant.bsky.social I cover science and culture at Ars Technica. Former science editor, Gizmodo. Ex-vangelical. Rodeo fan. Married to @seanmcarroll, servant to two cats: Ariel and Caliban. Baltimore, MD. She/her.
George Musser @georgemusser.com contributing editor, Scientific American, Nautilus; contributing writer, Quanta; author, Putting Ourselves Back in the Equation, Spooky Action at a Distance, Complete Idiot’s Guide to String Theory; planetary scientist, local historian, bassist, salsero
Al Yankovic @alyankovic.bsky.social You know... the weird one.
Dr. Emily Gilbert @emdwarf.bsky.social Staff scientist at Caltech/IPAC, working on the NASA Exoplanet Archive, and studying small stars and planets. But you’ll mostly find baseball and snark here, with occasional scientific interruptions.
Dr Dave Clements @davecl.bsky.social Astrophysicist at Imperial College. Extragalactic astronomy, observational cosmology, astrobiology. Writes science fiction. Not speaking for anybody. Science for Fiction podcast https://open.spotify.com/show/7HzQoyNyNI115W3kgqZAku?si=jK0XQYAyS1ubvzD76spbEg
Lisa Ballard @basilleaf.bsky.social Web Dev. Free Palestine. She/Her.
William Gibson @greatdismal.bsky.social Author of Neuromancer and, most recently, Agency (still above from “Kill Switch”, The X-Files, Season 5, Episode 11, co-written with Tom Maddox)
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
Andy 📡 @aspaceperson.bsky.social Astronomy PhD candidate at UMass - galaxy evolution, dust attenuation. also ttrpgs and stuff. 28 they
Evan 🌎 🔴 @erude.bsky.social i operate a robot on Mars for NASA. maryland native, LA transplant. i climb rocks and read books and immerse myself in art. seeking identity and community. posts/opinions are entirely my own. he/him
🍁🌸Danielle Aiko W🌸🇨🇦 @astrodani.bsky.social I work at the VLA front end group, I'm on the MSIP front end build group. I do low band 📡 🔭 as well. 🏳️⚧️, and a mix of buddhist and Jewish ^_^
Got a degree in geology & RF engineering
Hobby vtuber
https://m.twitch.tv/yotsubanishiki
Kevin M. Gill @kevinmgill.bsky.social Engineer, data wrangler, and martian photographer at NASA-JPL, Los Angeles. Curiosity Rover ECAM PUL. Saturn native, commutes to Jupiter. USMC vet. Opinions are mine https://apoapsys.com
Ele Willoughby @minouette.bsky.social Artist/marine geophysicist (PhD Physics)
Printmaker
Find/contact me at:
minouette.Etsy.com
minouette.blogspot.ca
Instagram.com/the.minouette
https://cara.app/minouette
I post art, science, #sciart and stuff with typos. She/her, Settler in Tkaronto 🇨🇦
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/
Josh Rosenau @joshrosenau.org Science belongs in politics. Nature-poker, cephalopods fan, conservationist, climate hawk, evolution fan. PTA dad. he/him
Build parks and community!
City council member in Lake Forest Park, WA since 2026 https://joshforlfp.com
Tara Murphy @taramurphy.bsky.social Professor and Head of School of Physics at the University of Sydney. Radio astronomer looking for transients and gravitational wave events. OzGrav CI. Teaching physics and the apocalypse. https://taramurphy.github.io
Views expressed here are my own :)
Paul Stewart @astrostew.bsky.social Amateur astronomer, nature photographer, space geek and the upside down astronomer
@upsidedownastronomer@astrodon.social
@astrostew on Twitter 
Ava Polzin @avapolzin.bsky.social professional nerd/astronomer
avapolzin.github.io
Jonah Goldfine @astrojonah.bsky.social Astrostats PhD Candidate at Macquarie Uni
Formerly @nyuphysics.bsky.social & @uofdenver.bsky.social Data Science
He/They 🏳️🌈
Jonahdg.github.io
Michael McKean @mjmckean.bsky.social Actor, songwriter, husband, father, reader, listener.
Dani cRabaiotti 🦀 @danirabaiotti.bsky.social Dr of Zoology
Data Scientist
Science feed co-creator
NYT bestselling author of #DoesItFart🐢💨
@tarzxf.bsky.social @tarzxf.bsky.social 
Bluesky @bsky.app official Bluesky account (check username👆)
Bugs, feature requests, feedback: support@bsky.app
Nadine, Hunter of Rocks @nadwgab.bsky.social Geologist | Mineralogy Curator @ the Natural History Museum, London | Creator of #365Minerals & #AreYouSiO2 | Views are my own | She/Her | 🌈💎
Posts about: #minerals #museums #geology #fossils #science
Geology memes: #GeologistProblems
🐘 mas.to/@NadWGab
Katie Matthews, PhD @katieocean.bsky.social Lapsed geologist, Chief Scientist at @oceana.bsky.social, dog mom. DC born and raised. Philly is my 2nd home.🖖
Skeets my own, *not* my employer’s. Mostly oceans + science + climate + policy. A little politics (sorry) and Phillies (not sorry).
Beth Johnson @planetarypan.bsky.social Planetary scientist, podcast host, cat wrangler. Communication specialist for the SETI Institute. planetarypan.medium.com #WomeninSTEM
Paul Cornish @paulgcornish.bsky.social Science communicator, writer, village scallywag, blackguard of the neighbourhood. he/him
paulgcornish.weebly.com
Dr. Tessa Fisher @tessafisher.bsky.social Research Facilitator, ASU| Astrobiologist | Trans Lesbian | SFF Writer | Lukewarm Ecosocialist | Union Woman | One Half of @asabpod.bsky.social | She/Her| 🌹
www.tessafisher.com
Words and opinions are my own.
MaggieBeth @maggiebeth.space Former NASA postbac • still studying exoplanet atmospheres • UMaine Geology ‘24 • Gwen Stefani (the cat) fan account • my views ≠ NASA
📍Maine 🌲
maggiebeth.space
Kenneth Chang @kchang.bsky.social Science reporter, The New York Times. Writes stuff.
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.
Karen Kwon | 권영아 @ykarenkwon.bsky.social She/her • Science journalist • Research and special projects editor @ Science News • Chemistry PhD • NYU SHERP grad • 2020 AAAS Mass Media Fellow @ Scientific American • 🇰🇷♠️💜 www.ykarenkwon.com
Alexandra Witze @alexwitze.bsky.social Science journalist and correspondent for Nature (she/her). Opinions = my own. Reach me at alexwitze.01 (Signal), witzescience (@gmail.com), or awitze (@protonmail.com).
Dan Falk @danfalk.bsky.social Hi! I write about #science for Smithsonian, Discover, Quanta, Nautilus, Undark, National Geographic, CBC Radio, & many other outlets. Books include The Science of Shakespeare and In Search of Time. Co-host of BookLab podcast. 🔭🪐⭐️⚛️
Adam Savage @asavage.bsky.social Maker. Science Communicator. Connector. 
Dan F-M @dfm.io Retired computational astrophysicist
Interpretability at Anthropic; prev Google DeepMind, Simons Foundation, Journal of Open Source Software
(he/him)
https://dfm.io // https://github.com/dfm
August (Gus) Muench @augustfly.bsky.social data editor in New Haven; tree/bird/sky watcher; former Bostonian/Floridian/IR Astronomer
NANOGrav PFC @nanograv.bsky.social A NSF-funded Physics Frontiers Center using pulsars to search for low-frequency gravitational waves! They/Them/Theirs
Shahrin Ahmad (Shah) @shahgazer @shahgazer.bsky.social I love calculating & chasing eclipses,shadows,transits,occultations on faraway worlds. The sun, moon & planets are my friends 'cause I got class 8-9 bortle sky. 
Grant Tremblay @granttremblay.com Astrophysicist at the Center for Astrophysics | Senior Vice President, American Astronomical Society
Ryan J Hollister @phaneritic.bsky.social Earth & EnviroSci Educator, Central Valley equity/sustainability advocate, Hiker, Photographer, 2015 NAGT FW Outstanding Educator. 🌋 Tissue Box Maker.
❤️🏕⛰🏜 w/ @Xenolith & Z.
Kat Troche @kuiperkat.org Professional amateur astronomer with astrosociety.org + aaa.org 💫
Emmy + Webby winner 🏆
Have scope, will travel 🔭
Opinions are my own 👩🏻💻
linktr.ee/kuiperkat
Dr. Kiki @drkiki.bsky.social Longtime podcaster, science communicator, birdbrain expert, curious person trying to be kind & spread joy.
This Week in Science podcast (TWIS.org)
https://kirstensanford.com
Signal: If you know me, find me there. Let's talk.
Laura Hollister @xenolith.bsky.social Mother, Wife, Geoscientist, Feminist, & Educator. NAGT-TED Past President, 2009 OEST Recipient. BS /MS Env. Geoscience 
Dan Chibnall @bookowl.bsky.social STEM Librarian & Associate Professor in Iowa
Expect science, baseball, St. Louis Cardinals, #STLCards, progressive politics, astronomy, owls, beer, & pretzels
Sean Carroll @seanmcarroll.bsky.social Physics, philosophy, complexity. @jhuartssciences.bsky.social & @sfiscience.bsky.social. Host, #MindscapePodcast. Married to @jenlucpiquant.bsky.social.
Latest books: The Biggest Ideas in the Universe.
https://preposterousuniverse.com/
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