cait (and adonis) @cait.bsky.social The Ringleader
big famous microblogger
pet account reactionary
flamboyant wrecker
goddess of uselessness
[she/her] Texan in MA. Adonis' mom
Buffer @buffer.com The social media management platform for scheduling, publishing & analytics across every major network. Plan your content calendar in one place. This account is managed by real humans. 💙
⬇️ buffer.com/bluesky
Kerstin Neuhaus @microtopico.bsky.social (she/her) Former mineralogist disguising as materials scientist, specialized in AFM & solid state ionics (zinc batteries), loves 🌋 & planetology, MinCup, Foodie, Mama of two.
Hexacosichoron @hexacosichoron.bsky.social a.k.a. Noel
Nerd
Ambious 🖖🤘 @ambious.eladavron.com Per Aspera Ad Astra
Alessondra Springmann, PhD @sondy.com Cat herding, hiking, sewing, planetary science. Currently: Boulder, CO. formerly Tucson, AZ; Arecibo, PR; and a few other places. Asteroid radarist & healthcare advocate. she/they http://sonoranspace.org
Still masking!
Ian J. O'Neill @astroengine.bsky.social NASA JPL news media specialist. Topics include (not limited to): ☄️🛰️📡🪐🌕⚛️ Solar physics PhD. Science communicator, writer. Opinions are mine, mine, all mine. he/him
Casey Dreier @caseydreier.bsky.social Chief of Space Policy at The Planetary Society. Host of Planetary Radio: Space Policy Edition. planetary.org
David Dickinson @astrodave.bsky.social Writer, Space pundit, Skywatcher
Amy Shira Teitel @amyshirateitel.bsky.social Author, historian, streamer, YouTuber, writer.
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. Sarah Milkovich @milkysa.bsky.social Planetary Wanderer: public speaker, spacecraft engineer, scientist, artist, maker, mom. https://www.sarahmilkovich.com/
https://www.etsy.com/shop/windstoneandstars
Yoav Landsman @yoavlandsman.bsky.social Space visionary | Ex-SpaceIL | ISU alumnus | Karman Project fellow | co-founder and manging director at Spacebackend |
Tweets are my own. He/Him
Scott Sigler @scottsigler.bsky.social #1 NYT bestselling horror/SciFi author. • World's longest running free fiction podcast, get stories each week at scottsigler.com/subscribe. I'm your Huckleberry.
Nancy Atkinson @nancyatkinson.bsky.social Space and science journalist, author of “Eight Years to the Moon” and “Incredible Stories From Space “
Brian G. aka urbanbohemian 🪩🥂💖 @urbanbohemian.com Video Games, TTRPG, jokes, voice, food, cocktails, disco, brunch. Black, Queer, Brunch PhD | he/they | Twitch Partner | TTRPG Performer and Occasional GM 🏳️🌈🏳️⚧️🖖🏿 | urb@urbanbohemian.com
urbanbohemian.com
Mur Lafferty @mightymur.bsky.social Author, podcaster, editor.
Digger, listener, runner.
INFINITE ARCHIVE is out July ‘25!
She/her
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
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
✨🇨🇦🏳️🌈✨
Dr. Laci Brock 🪐 @stellerarts.com ✨ science meets art
🔭 planetary astro PhD + artist
🎨 space-inspired paintings
🪶 bird nerd • gamer • cloud watcher
⬇️ art shop, email list, etc.
https://stellerarts.com
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.
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
Sarah Hörst @planetdr.bsky.social Professor of planetary science at Johns Hopkins. Titan’s biggest fan. Pomeranian wrangler. Runner. Love many, trust few, always paddle your own canoe. She/her. sarahhorst.com
Planetdr.26 on signal
John Scalzi @scalzi.com I enjoy pie.
Social Media FAQ: https://whatever.scalzi.com/2025/04/16/the-official-john-scalzi-social-media-faq/
Stephen Granade @granades.com Science presenter, robotics researcher, fiction writer, interactive fiction person, award-winning Virgo. Co-editor of @smallwondersmag.com SFF magazine.
website: https://stephen.granades.com
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
Surly Amy @surlyamy.bsky.social Multimedia artist, maker, potter, painter, creator of Surly-Ramics. Surly.etsy.com is where you can buy my work. patreon.com/SurlyAmy is where you can read about me. Dog is Love.
Avivah Yamani @avivahy.bsky.social Astronomy Communicator. Science Writer. Podcaster. Universe Storyteller. Just a glimpse of my encounter in life. DM me for work related to scicomm.
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.
The Real Fake Admin @trfa.xyz I’m a software developer. #CosmoQuest #SciComm
Kerbal01 @kerbal01.bsky.social old computer enthusiast, linux user, right to repair advocate.
@evsn.tv @evsn.tv 
Natalie Metzger @thefuzzyslug.bsky.social 💀 She/her
🎨 Illustrator and designer
🏔️ Pacific Northwest
🔗 https://thefuzzyslug.neocities.org/links
🪲🦀 Here Be Bugs 🕷️🦐
🚫 No genAI
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.
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/
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
Guido Bibra @guidobibra.bsky.social Photographer (colour=digital/b&w=analog)
Science, Movie, Music and Vintage Computer & Games Conoisseur
🏠 Mülheim/Ruhr, Germany
🔗 https://foto.bibra-medien.de 🔗 bibra.eu
🔗 mastodon.bibra.eu 🔗 instagram.bibra.eu
Helge Bjørkhaug @snutten.bsky.social 
Dr. Wendy Bohon @drwendyrocks.bsky.social Earthquake geologist 🧪⚒️ | Scicomm specialist 🎙️| Formerly USGS, IRIS, NASA | she/her | Views are mine | website: https://wendybohon.com/
“A delightful blend of scientific rigor and domestic chaos.”
Alex White @alexwhite.bsky.social Novelist: The Salvagers Trilogy, The Starmetal Symphony, Every Mountain Made Low, Alien and Star Trek
Games: Alien: Rogue Incursion and Aliens: Fireteam Elite 2 (consultant)
No AI in my work, ever.
@kmkronewrites.bsky.social @kmkronewrites.bsky.social She/Her, scientist, writer, bee enthusiast. I followed the crowd of rats fleeing the sinking ship. Don't lick the science.
Mineral Cup & Ore Cup @mineralcup.bsky.social Which mineral is the best of them all? Campaign & vote in #MinCup each September. #OreCup starts November 3, 2025! www.MineralCup.org
Kyanite photo credits: Smithsonian Institution
Teton Kali @tetonkali.bsky.social Fearful for the survival of Transgender humans like me. Hack photographer, astronomer, geologist. Mom to Hubble. 
Kat Volk @katvolk.bsky.social Planetary scientist, equestrian, and cat herder. Cat posts at: https://bsky.app/profile/katskitties.bsky.social
Not The Brain @notthebrain.bsky.social Nerd. Queer. Neurospicy. Spoony Polyam. Loves to dance, swim, science, make art and flail swords... Not nessecarily good at any of it
Xe/Xem Gender not found. Might be a squirrel
🏳️🌈 ⚧
Pink.dalek on instagram
Robi on Applied Materials actual play pod
Thad Szabo @astrothad.bsky.social (he/him) Professor of Phys & Astro at Cerritos College
Has benefited from the companionship of chinchillas, a dog, & a cat. Some humans are OK.
Seeking a living kidney donor: www.kidneyforthad.info
Astrophotos: https://www.flickr.com/photos/astrothad
Gordon Dewis @keeperofmaps.bsky.social Research analyst by day, amateur astronomer by night. Steersperson for the Ottawa Dragon Masters Senior Open B dragon boat team. Occasional host of launch watch parties on https://twitch.tv/cosmoquestx #StandWithUkraine 🇺🇦
ally @inaneenglish.bsky.social indie science news producer with @cosmoquest.org, podcast engineer, walking shitpost, fandom malcontent, vampire armand apologist. all opinions & curse words are my own.
🚀🔭🌈
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.
🇵🇱✡️🇪🇬☪️
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.
SETI Institute @setiinstitute.bsky.social Our mission is to lead humanity’s quest to understand the origins and prevalence of life and intelligence in the universe and share that knowledge.
Dr. Julian Lozos @seismogenic.bsky.social Earthquake physicist in Los Angeles; uses computer models to study how faults behave and interact
University of California graduate; Cal State faculty
maker of things | fiddle, viola, Javanese gamelan | D&D | cats | ég er að læra íslensku
he/him | aroace
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/
Vicky Veritas @vickyveritas.bsky.social Born in the Anthropocene
Worked at the intersection of Geology and GIS
#Geosciences | #EarthScience | #Geology | #GIS | #Rocks | #TeamFluorite | #ScienceFiction | #Fantasy
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. 🇨🇦🇺🇸
Nicole Gugliucci @noisyastronomer.com Physics professor, astronomer, education researcher, and scicommer who loves dogs, speculative fiction, weights, and good trouble. NH, US. She/They.
Opinions are mine alone. RT≠endorsement. Posts are ephemeral.
I swear a lot.
noisyastronomer.com
Astronomy Cast @astronomycast.com Take a facts-based journey through the cosmos and discover how we know what we know. With hosts Fraser Cain and Dr. Pamela Gay. Recorded live on YouTube.
Beth Johnson @planetarypan.bsky.social Planetary scientist, podcast host, cat wrangler. Communication specialist for the SETI Institute. planetarypan.medium.com #WomeninSTEM
Dr Pamela L Gay @starstryder.space I am an astronomer, technologist, and creative focused on using new media to engage people in learning and doing science. Note: I have dyslexia and will typo. OMG will I typo...