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
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
Stuart Atkinson @stuartatkinson.bsky.social Amateur astronomer and author of science fiction and science reference books, including "A Cat's Guide to The Night Sky". Fascinated by Mars since knee high to R2D2 and owned by a very demanding rescue cat called Jess. 
European Space Agency @esa.int Elevating the future of Europe through space.
Please see our Privacy Notice: https://esa.int/connectwithus
Scientific American @sciam.bsky.social A legacy of discovery. A future of innovation.
The Planetary Society @planetarysociety.bsky.social A space advocacy nonprofit founded in 1980 by Carl Sagan, Bruce Murray, and Louis Friedman, now led by Bill Nye.
Find your place in space.
Become a member today: https://www.planetary.org/
Casey Dreier @caseydreier.bsky.social Chief of Space Policy at The Planetary Society. Host of Planetary Radio: Space Policy Edition. planetary.org
Laurie Leshin @laurieofmars.bsky.social Space nerd, rock nerd, ed nerd, dog nerd, fiber nerd
Alyssa Mills @alyssacmills96.bsky.social Planetary geophysicist | PhD candidate @ Baylor | Research: potential fields, geodynamics, ML, & chaos on mostly icy worlds but some dabbling on Venus | John Mather Nobel Scholar | x8 NASA intern | Clipper G/RS graduate affiliate
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).
Caltech IPAC @caltechipac.bsky.social IPAC at Caltech partners with NASA, NSF, JPL, and the worldwide research community to advance the exploration of our Universe. www.ipac.caltech.edu
Firefly Aerospace @firefly-aerospace.bsky.social 
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.
AGU (American Geophysical Union) @agu.org Official AGU: supporting 500k+ Earth & space science advocates.
🌏 🚀 🔬
Save the Date for #AGU26 in San Francisco, CA, 7-11 December, 2026.
HiRISE Beautiful Mars (NASA) @uahirise.bsky.social Images from the High Resolution Imaging Science Experiment (HiRISE) on board the Mars Reconnaissance Orbiter (NASA). We are based out of the Lunar and Planetary Laboratory at the University of Arizona in Tucson, AZ. https://uahirise.org
Nathan Williams @bluebirdadventures.bsky.social PhD Planetary Scientist & Applied Science Systems Engineer @NASA/JPL-Caltech.
He/Him/His
Personal account; all views are my own.
I think I'm quite ready for another adventure!
Join me, won't you?
CAL FIRE @calfire.bsky.social The California Department of Forestry and Fire Protection. Serving and safeguarding the people and protecting the property and resources of California.
https://linktr.ee/calfire_official
Andrew Beale @drbatmo.bsky.social Comparative molecular chronobiology. Senior Scientist @ MRC LMB
Andrew Annex @andrewannex.com Coder & Ph.D. @JohnsHopkins, Frmr Postdoc @Caltech, #MastcamZ, #M2020. Author of #spiceypy Python package. My opinions are my own. www.andrewannex.com
The New York Times @nytimes.com We seek the truth and help people understand the world. Not a subscriber? Your first month is now free in our app. https://nytimes.onelink.me/Xpht/zbx4nci9
National Weather Service @nws.noaa.gov Official Bluesky account for NOAA's National Weather Service.
NOAA Climate.gov @climate.noaa.gov Toward a Climate-Smart Nation. The official NOAA account for Climate.gov hosted by the Climate Program Office. Follow for #climate news, #science, #data, resources, and more!
NOAA @noaa.gov NOAA provides science, service and stewardship to protect life, property & Earth's natural resources. An agency of the Department of Commerce. Join us on Instagram & Facebook. Official NOAA account.
Dr. Dan / The Spectral Band @thespectralband.bsky.social Lunar Geologist
Drummer for A Troop of Echoes and Public Policy
Noisy bangers as D. Majestic and the Spectral Band
Eos @eos.org Eos is a leading source for trustworthy news and perspectives about the Earth and space sciences and their impact. Published by the American Geophysical Union (@agu.org).
Luca Tonietti @antiprotony.bsky.social Astrobiology PostDoc at #uniparthenope, Geobiology at #GiovannelliLab. Scientific collaborator at #inaf, #CNR, #unimib, #unina. Visiting at #ukca, #edinburghuniversity and #Cometinterceptor team for #esa.
Future is #Cyberpunk
www.lucatonietti.com
Susan Bell @susanbellair.bsky.social Fed up with Fascism. Rebuilding a 1927 house. Gardener. Cat wrangler. Sometimes I fly upside down.
Edwin Kite @edwinkite.bsky.social Resident at Astera Institute. Planetary science professor, U. Chicago. Mars terraforming, Early Mars, rocky exoplanets. https://sseh.uchicago.edu/
Paul Wren @elevenpointtwo.bsky.social Software engineer @jmars_gis.bsky.social, occasional planetary scientist. he/him
The statements and opinions posted by me are my own and do not necessarily represent NASA's positions, strategies or opinions.
Andy Britton @kalofxeno.bsky.social Space Scientist at NASA-JSC. Former Sci at MSSS targeting CTX on NASA's MRO. UCL & ASU alumnus. Views = my own.
Erica Nathan @thaterican.bsky.social Geophysicist | Planetary Scientist | Board Game Designer | Brown University '23 | Colgate University '18
Opinions my own
Anant Hariharan @ananthariharan.bsky.social Seismologist | Green's Postdoctoral Scholar @UCSD | Brown University '23 | Cornell '18 | he/him
ananthariharan1996.github.io
Dr. Petr Brož @chmee2.bsky.social scientist - #Mars - in love with all types of #volcanoes - father of two - a member of zeleni_cz - a bit crazy science communicator :)
Dr. Sean Peters @siprocks.bsky.social Visiting Assistant Professor @ Middlebury College | PRESSURE | Volcanologist 🌋| Planetary geologist 🌍 | Former ALT 🇯🇵| Writer ✍🏾 | Traveler 🧳 | Wannabe Lego enthusiast 🧱
sipeters.com
Dr. Fred J. Calef III @mapperwocky.bsky.social Science Systems Engineer @NASA/JPL-Caltech. PhD in Geology. 30+ years Geospatial experience. PI for the FOSS4G Multi-Mission Geographic Information System (MMGIS https://github.com/NASA-AMMOS/MMGIS).
Not a NASA account.
Never met a rock I wouldn’t lick.
Jamie L. Molaro @spacejammie.bsky.social Planetary Scientist, Artist, Musician, D&D Nerd, Epic Poet. hEDS, Bi ♿️🏳️🌈
I like rocks, study asteroids, and make art out of spacecraft data. I also play harp, own a carousel, and my dog is really cute.
www.jamiemolaro.com
Riding With Robots @ridingrobots.bsky.social Robotic solar system exploration, astrophotography, exasperating earnestness. My day job is impersonating your favorite planets and spacecraft on social media for your favorite government agency. Opinions are my own.
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
James Tuttle Keane @jtuttlekeane.bsky.social planetary scientist 🪐 science illustrator 🎨 trekkie 🖖 dog dad 🐶 Pasadena 🌹 views are my own 🏳️🌈 he/him
Ali Bramson @alibramson.bsky.social Planetary scientist finding ice on Mars with NASA space robots | Professor @ PurdueEAPS | 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
Frances Butcher @fegbutcher.bsky.social Planetary Scientist & Glacial Geomorphologist (Mars & Earth)
Royal Society University Research Fellow, University of Sheffield, UK.
Views own. She/her.
Ed Rivera-Valentín @planettreky.bsky.social Planetary Scientist & Trekker of Planets.
#LatinxInSTEM 🇵🇷 #LGBTQinSTEM 🏳️🌈.
My posts, my views.
Dr. Rocío Paola Caballero-Gill (she/her/ella) @caballerogill.bsky.social Diversity, equity, inclusion strategist & practitioner🔹Lifelong learner, mom, mentor, connector, #chronicillness, geoscientist,🇵🇪in🇺🇸
George Mason Uni. Prof🔹GeoLatinas Co-founder & Leadership🔹CycloCohort Program Director 🔹Climatematch Co-founder
Angela Marusiak @planetaryquakes.bsky.social Planetary scientist looking to see what’s shaking in our solar system, currently an Asst. Research Professor at LPL. Thoughts are my own, not my employers 🪐 🚀🌔
Dr. Frances Rivera-Hernández (she/ella) 🇵🇷🚀 @francypants.bsky.social planetary geologist & prof at Georgia Tech | 💜sediments & ice | #Boricua #LatinxInSTEM #GeoLatinas | Jíbara de Aguas Buenas, PR 🇵🇷 | #MomInAcademia- M Marslakes @marslakes.bsky.social Mid- (!) Career Scientist [according to my joints]. Converted Swiftie. Feed may be mostly irrelevancies. MSTR bear.
Earth, Environmental & Planetary Sciences @earth-science.bsky.social We run the "Earth Scientists" feed — pester this account if you want to join
https://bsky.app/profile/did:plc:lpl45lei6abqpvmet5htdbtb/feed/aaakc72k5sgcs
(brought to you by @louis.moresi.info)
Jay Dickson @erroneoustholus.bsky.social Polar & Planetary scientist. Director of the Polar Geospatial Center. Dad.
Dr. Tanya Harrison @tanyaofmars.bsky.social “Very Respected Science Person” -NBC News
🔴 Former science operations for NASA Mars missions
🛰️ Current space sector strategist & author advocating for Earth
🌎 Based in Ottawa but often found on a train
✨🇨🇦🏳️🌈✨
Nick @nsub1.bsky.social 
a rock or something @rockorsmth.bsky.social Planetary geologist (looking for a postdoc job) and part-time air ambulance pilot. Views are not my employers'. She/her.
Cody Schultz @codyschultz.bsky.social Postdoctoral research associate at Brown University studying planetary science