Dr. Cindy @newtomato.bsky.social Science & astronomy & good storytelling
Recovering cosmologist
she/her
Leigh Fletcher @leighfletcher.bsky.social Planetary scientist, Dad-in-training, space enthusiast, Professor based at the University of Leicester
https://linktr.ee/leigh.fletcher
https://orcid.org/0000-0001-5834-9588
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/
Dra. Lupita TM @astroxicana.bsky.social Astronomy & Astrobiology PhD | she/her/ella | views are my own
#FirstGen #LatinaInSTEM
Ken Jennings @kenjennings.bsky.social Your Jeopardy! pal. Author of THE COMPLETE KENNECTIONS (http://bit.ly/4qUcbhK) and a bunch of other stuff.
Steve @steve.science Meat machine who turns coffee into solved software problems π§βπ» Science enthusiast π
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...π
Alexandra Petri @petridishes.bsky.social Iβm not in James Thurberβs attic any more! right now Iβm home yay ! Iβm the one who writes this column https://www.theatlantic.com/author/alexandra-petri/ and loves puns
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
NASAWATCH @nasawatch.bsky.social NASAWATCH.com - Unofficial Space News Since 1996
Heard Island Government @heardislandgov.bsky.social Official Gov Description: Flight challenged colony of biracial nudists.
Status: Tariff & Human Free. Sovereign; yet protected by AU. βFlippers Upβ
SIGN to protect our Islandβs Marine Reserve https://wwf.org.au/get-involved/an-antarctic-safe-haven/
AAS Press Office @press.aas.org Astronomy news curated by the Press Office of the American Astronomical Society. Note: Posting is not endorsing, only informing. aas.org/press Header Image: https://shorturl.at/vb7A1
Leopards Ate My Face @leopardsatemyface.bsky.social never thought leopards would eat MY face!
Send me your LAMFs
Sandra Salamony @sandranoel.bsky.social 
CC Petersen @thespacewriter.bsky.social Science writer, astronomer, reader, music lover, I'm from Colorado, only work in space 
Dr. Amber Straughn (she/her) @astraughnomer.bsky.social Black Lives Matter. NASA Astrophysicist for #JWST. From Arkansas. Hiking, yoga, Great Dane mom, pilot, Pearl Jam superfan. #FirstGen Personal account - my views
National Radio Astronomy Observatory - NSF NRAO @thenrao.bsky.social The National Radio Astronomy Observatory is a facility of the U.S. National Science Foundation. #RadioAstronomy
π‘ VLA, ALMA, VLBA, GBT, ngVLA
π public.nrao.edu
Derek Fox @partialobserver.bsky.social Penn State Astronomer (he/him), personal account. βWe went and made everything a computer without ever bothering to fix computers.β 
Blue the Science Dude @science-dude.bsky.social Storyteller of science, Irish banjo player, and defender of reason and equality. Currently planning First Light Con: https://www.firstlightcon.org
Margaret Harris @drmlharris.bsky.social Award-winning science journalist at Physics World magazine @physicsworld.bsky.social. Also available as @DrMLHarris@mastodon.social. All views on science, politics, history, nonsense, etc. my own.
Sandpiper @spg21212.bsky.social Editor. Science writer. Astronomer. Birder. 
James Curbo @curbo.org π¨βπ» Cyber researcher at JHU Applied Physics Lab
π Doctor of Engineering, JHU Whiting School of Engineering (space cyber)
π Amateur astronomer
πΉοΈ Video game connoisseur
π Math/science/history nerd, married to a geologist
βοΈ USAF vet
https://curbo.space/
Brandon Lawton @astroblawton.bsky.social Project Scientist, Roman Science Communications, at the Space Telescope Science Institute. Views here are my own. 
Patricia @patriciadau.bsky.social Science/technology writer, longtime member of the National Association of Science Writers (NASW), Unitarian Universalist, also active in the SCA and Toastmasters. I love my aging cat.
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
π¦ π @djulik on π¦€
Gina Sunseri @gsunseri.bsky.social Exploring space !
CosmicRami π³οΈβππ³οΈββ§οΈ @rami.spaceaustralia.com Astronomer, driving The Dishπ‘ 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.
Ori Fox @orifox.bsky.social Astronomer | @STScI Scientist | HST | JWST | And now Deputy Project Scientist for Roman Space Telescope
Capital Weather @capitalweather.com D.C.'s Trusted Weather Team
http://www.capitalweather.com | info@capitalweather.com
Wil Wheaton βπ @wilwheaton.net New York Times bestselling author and audiobook narrator.
Host of It's Storytime with Wil Wheaton
Retired Starfleet officer.
Husband, father, Traveler.
Nazi punks fuck off.
George Takei @georgetakei.bsky.social Husband, Actor, Activist, Uncle George to the Internet π
AGU (American Geophysical Union) @agu.org Official AGU: supporting 500k+ Earth & space science advocates.
π π π¬
Save the Date for #AGU26 in San Francisco, CA, 7-11 December, 2026.
Lee Feinberg @leefeinberg.bsky.social 
β α°α©αα α©. Η€α©ααͺIαα β @markgarlick.com π Astrophysics Ph.D
π© Illustration and animation in Blender
πͺ Space art and astronomical art specialist
β¨ Fellow of International Association of Astronomical Artists
π¦ Dabbling in paleoart and scifi art
π« Porn/AI/NFT/MAGA = Block
π linktr.ee/spaceboffin
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).
Miles Doran @milesdoran.bsky.social Coordinating Producer @ CBS News π
Rebecca Boyle π @rboyle31.bsky.social Journalist, selenophile, hiker, Coloradan. Friend of dogs, foe of AI. I speak for the Moon.
Life is short but sweet for certain.
Author of award-winning national bestseller OUR MOON!
Buy it: https://www.penguinrandomhouse.com/books/611468/our-moon-by
Meghan Bartels @meghanbartels.bsky.social Science journalist (for hire!). Book person, cat person, Georgetown alumna, etc. In NYC. Signal: mbartels.07. she/her http://meghanbartels.github.io/portfolio/
Kenneth Chang @kchang.bsky.social Science reporter, The New York Times. Writes stuff.
Jeff Foust @jfoust.bsky.social Senior Staff Writer, SpaceNews. Tips? Email jfoust@spacenews.com or contact on Signal: jfoust.58.
Eric Berger @sciguyspace.bsky.social Senior Space Editor, Ars Technica. Likes rockets. 
Loren Grush @lorengrush.bsky.social Space reporter at @bloomberg.com covering NASA, commercial space, and the cosmos | Send tips: LGrush@bloomberg.net | Signal username: lorengrush.56 | Buy my book! https://www.simonandschuster.com/books/The-Six/Loren-Grush/9781982172817
Marina Koren @marinakoren.bsky.social Science journalist, covering space stuff. Bylines in National Geographic, The New York Times, and elsewhere. Former staff writer and union boss at The Atlantic.
www.marinakoren.com / Signal: @marinakoren.08
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
SkyGuyInVA @skyguyinva.bsky.social NASA JPL Solar System Ambassador
Unistellar Ambassador
Space Reporter for WTOP News Washington D.C.
Cruise ship lecturer
Springer Astronomy Author
Astrophotographer
OPINIONS ARE MY OWN
@robgutroauthor.bsky.social @robgutroauthor.bsky.social 
Jackie Barrientes @barrientes.bsky.social Social Media Specialist - Space Telescopes, Digital Audience Strategist, UNTx/AzSU alum, knitter, wine/bourbon drinker, Texas native, Baltimore π²π½πΊπΈ
Unitedstatesofwine.blog
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
Science Sage @sciencesage.bsky.social Science Sage, also known as Julie Seven Sage. On Twitter supernova_style. A 20-year-old science communicator with 8 years of experience. I am working on my astrophysics degree. Host of StarCharts radio.
Benevolent Karen @baznet.bsky.social Master of Bitchcraft
she/her
Space Jim @spacejim.com G'day! I'm Space Jim, your local news reporter for the Solar System - coming to you live from Naarm (Melbourne), Earth.
π science communicator | π₯ videographer | π€ journalist
Watch my full-length videos at youtube.com/@ThisIsSpaceJim
The Skeptics' Guide to the Universe @theskepticsguide.bsky.social The official Twitter for The Skeptics' Guide To The Universe.
theskepticsguide.org
Kevin Hainline @kevinhainline.bsky.social Enthusiastic Astronomer. Professor at the University of Arizona. I use telescopes to find things. (He/him)
Hannah Wakeford @stellarplanet.bsky.social Exoplanet scientist. Science communicator. Author. Podcaster. Miniature painter. Wife. Cat mum.
Dr. Angelle Tanner @astrochic73.bsky.social Astronomer, cat (a dog) lady, lover of nature. Associate Professor at Mississippi State University, Project Scientist of the Landolt Mission
Karin Sandstrom @karinsandstrom.bsky.social Astronomer. Professor at UC San Diego. Lover of coffee, interstellar dust, California, nerdy stuff. she/her
Erik Tollerud @eteq.bsky.social Astrophysicist, Python coder, and general lover of nature in all its forms. Tweets are my own. He/they.
Marc Postman @astromarc.bsky.social Astronomer studying galaxies, clusters, and dark matter. Envisioning the future of space astronomy. My posts are my own views. (he/him)
John F Wu @jwuphysics.bsky.social Tenure-track astronomer working on galaxies, machine learning, and AI for scientific discovery. Opinions my own. He/him.
Website: https://jwuphysics.github.io/
Chris Evans @chrisinbaltimore.bsky.social European Space Agency HST & JWST Project Scientist; Head of ESA Office, STScI; views my own
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
Dr. Susan E. Mullally @mustaric.bsky.social Astronomer -- Baltimore -- Exoplanets -- Mother -- Choir -- Games
Posts my own.
Dr. Scott W. Fleming @scottwfleming.bsky.social Branch Manager at Space Telescope Science Institute working in the MAST archive. Astronomy PhD. Studies stars and exoplanets. Loves programming. Opinions are my own. He/Him/His
Dr. Teresa Symons @deepspacemine.bsky.social Astrophysicist @caltechipac.bsky.social working on NEO Surveyor π°οΈ | Studies cosmological backgrounds π and PSF reconstruction π | she/her
John Debes @johndebes.bsky.social ESA/AURA astronomer at STScI. Opinions my own. I study exoplanets and disks around stars.
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. π¬π§π§πͺ Opinions my own. 
Josh Peek @jegpeek.bsky.social 
Alexandria Ocasio-Cortez @aoc.bsky.social Waitress turned Congresswoman for the Bronx and Queens. Grassroots elected, small-dollar supported. A better world is possible.
ocasiocortez.com
Lara Eakins @rhubarble.com Science and tech geek, history buff, needleworker, and all-around nerd deep in the heart of Texas.
N. K. Jemisin @nkjemisin.bsky.social Writer. She/her.
Dr. Tanya Harrison @tanyaofmars.bsky.social βVery Respected Science Personβ -NBC News
π΄ Former science operations for NASA Mars missions
π°οΈ Current space sector strategist & author advocating for Earth
π Based in Ottawa but often found on a train
β¨π¨π¦π³οΈβπβ¨
Nicole Gugliucci @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. RTsβ endorsements. Most older posts auto-delete.
I swear a lot.
https://bio.link/noisyastronomer
Nora's Guide to the Galaxy @ngttg.bsky.social I love space!
PhD, Astrophysics
SFF Author
πππ©βππ πͺ
π: https://galaxy.nora-bailey.com/linktree
Swapna Krishna @swapnakrishna.com space reporter. covering Artemis II for NatGeo.
occasionally: national geographic, engadget, fast company, wired, science friday, npr. links: http://bio.site/skrishna
also: Star Trek, Star Wars, knitting, books, parenting
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
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
The Scamperbeasts @scamperbeasts.bsky.social Sugar, Spice, Smudge and Saja, and occasionally guest animals and humans.
Stuart Goldman @stuartjgoldman.bsky.social 
NSFβDOE Rubin Observatory @vrubinobs.bsky.social Get ready for a new era in astronomy and astrophysics with Rubin Observatory!
Para espaΓ±ol siga a Instagram: http://instagram.com/rubin_observatory
John Scalzi @scalzi.com I enjoy pie.
Social Media FAQ: https://whatever.scalzi.com/2025/04/16/the-official-john-scalzi-social-media-faq/
Mercedes Tooke @mlopez-morales.bsky.social Personal account. Opinions are my own.
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
Bear and Gizmo @booplefloof.bsky.social Welp. Weβre here now too 
Randall Munroe @xkcd.com 
Cathrin Machin Space Art @cathrinmachin.bsky.social Space Artist & Telescope Operator π
Grab my 2026 Calendar here π
https://catmachin.com/products/2026-calendar
Nadia Drake @nadiadrake.bsky.social Science journalist, champagneophile, nap champ. Currently freelance, formerly National Geographic. π±π§πΊπΈπ³οΈβπ
Signal: nadiadrake.01
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/
Alan Boyle @b0yle.bsky.social Science editor / GeekWire / Universe Today / Cosmic Log / Fiction Science podcast / The Case for Pluto
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. π¨π¦πΊπΈ
Dan Vergano @danvergano.bsky.social Get AIP FYI Science Policy newsletter: https://www.aip.org/newsletters
Director Science Policy News, Editorial at AIP
Washington, D.C.
Opinions my own. Reposts are not endorsements.
Signal: Delta.357
https://www.linkedin.com/in/dan-vergano-93908b4/
Rachel Feltman @feltman.bsky.social Podcast Host @ The Weirdest Thing I Learned This Week + Science Quickly // Writer + Editor (science, history, sad gay ghosts) // Author of Been There Done That: A Rousing History of Sex // Past: WaPo, PopSci // Now: Working on my bog body (she/they)
Laura Helmuth @laurahelmuth.bsky.social Freelance writer, editor, columnist & consultant. Formerly at Scientific American, Washington Post, National Geographic, Slate, Smithsonian & Science. Past president of National Association of Science Writers. Birder.
Clara Moskowitz @clarakm.bsky.social Senior Editor at Scientific American, covering astronomy, physics and math. She/her π³οΈβπ
Seth Borenstein @borenbears.bsky.social Climate and science writer at The Associated Press, covers disasters, all sorts of science. Teaches journalism at NYU/DC. Father of 3, husband of 1. Red Sox fan.
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 Idiotβs Guide to String Theory; planetary scientist, local historian, bassist, salsero
Dr. Moiya McTier @goastromo.bsky.social βGenuinely funny astrophysicistβ
βArtemis reincarnatedβ
βI want to be her when I grow upβ
order MOTHERS OF INVENTION πΊ
moiyamctier.com/muses
Lisa Grossman @astrolisa.bsky.social Science journalist (current: Science News; past: New Scientist, Wired). 2023-24 Knight Science Journalism fellow. Lifelong astronomy nerd. Queer Jewish mom π³οΈβπ she/her/hers
Liz Landau @lizlandau.bsky.social Editor, writer, astronomy enthusiast. You can find my work at National Geographic, New York Times, Quanta, Smithsonian, and more. Views expressed are my own. Portfolio: lizlandau.com
Corina Newsome @corinanewsome.bsky.social Wildlife Biologist | Environmental Justice + Biodiversity Conservation