Dr. Clarissa R. Do Ó @astroclary.bsky.social b. thomas soifer (exp) postdoctoral fellow @ caltech astro | ucsb and ucsd alum | coffee, ⛸ , Star Wars
clarissardoo.github.io
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
Bill Krause @admiralbuck.bsky.social Starship artist/designer: Star Trek Picard. Custom miniatures for Film, TV and commission projects. Chief Test Pilot - Tycho Starship Yards.
Currently closed for commissions.
instagram.com/admiralbuck
https://www.youtube.com/@TychoYard
The Onion @theonion.com America’s Finest News Source. A @globaltetrahedron.bsky.social subsidiary.
Get the paper delivered to your door: membership.theonion.com
Join The Onion Newsletter: https://theonion.com/newsletters/
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. 🇬🇧🇧🇪 Opinions my own. 
Lisa Will @dustchick.bsky.social Astrophysicist, educator, geek. She/her. Professor, Physics/Astronomy, San Diego City College. Resident Astronomer, Fleet Science Center.
Kevin Hardegree-Ullman @kevinkhu.bsky.social Research Scientist at Caltech/IPAC-NExScI studying all things related to exoplanets! Opinions are my own. https://kevinkhu.com
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
Kat Abughazaleh @katmabu.bsky.social Former congressional candidate and journalist trying to change politics for good :) | www.kapow.works/
Wil Wheaton ❌👑 @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.
Dino Chih-Chun Hsu @chihchunhsu.bsky.social Postdoc at Northwestern | PhD UC San Diego | observational astrophysicist studying stars, brown dwarfs, and exoplanets | chihchunhsu.github.io
Aditya Sengupta @adiastra.bsky.social Astronomy PhD student at UCSC
Brandon Radzom @brandonradzom.bsky.social Astronomy PhD candidate at Indiana University. (Exo)planetary scientist. Runner. Average Android enjoyer.
Malena Rice @malenarice.bsky.social Planetary astrophysicist • Assistant Professor, Yale Astronomy • exoplanets & solar system • Forbes Under 30 • astrosoundbites
Peter Gao @planetarygao.bsky.social Staff Scientist @ Carnegie EPL. Planetary and exoplanet atmospheres. He/Him/His. Black Lives Matter. Trekkie. Opinions are my own.- E Eric Mamajek @ericmamajek.bsky.social Star guy. Statements and opinions posted here are my own.
Gabe Weible @gabeweible.bsky.social Astronomy & Astrophysics Ph.D. Student at the University of Arizona | High-Contrast Imaging of Exoplanets and Brown Dwarfs 🪐
Barack Obama @barackobama.bsky.social Dad, husband, President, citizen. barackobamabooks.com
Carl T. Bergstrom @carlbergstrom.com Professor, UW Biology / Santa Fe Institute
I study how information flows in biology, science, and society.
Book: *Calling Bullshit*, http://tinyurl.com/fdcuvd7b
LLM course: https://thebullshitmachines.com
Corvids: https://tinyurl.com/mr2n5ymk
he/him
Ellis Rosen @ellisjrosen.bsky.social Cartoonist for The New Yorker
Angela Collier @acollierastro.bsky.social Theoretical Physicist.
(She/her/hers)
From Eastern KY.
Zohran Kwame Mamdani @zohrankmamdani.bsky.social Mayor of New York City
SciComm Excellence @scicommexcellence.nationalacademies.org The National Academies of Sciences, Engineering, and Medicine's home for excellence in #scicomm.
https://www.nationalacademies.org/awards/excellence-in-communication
Schmidt Sciences @schmidtsciences.bsky.social Bold science, deep and continuous collaborations.
Philipp Huber @astrophilipp.bsky.social Exoplaneteer & PhD Student @ ETH Zurich 🇨🇭
Working on the future of exoplanet imaging with nulling interferometers 🌍
Yvette Cendes @whereisyvette.bsky.social Astronomer here! I’m a Hungarian-American radio astronomer, alias /r/Andromeda321 on Reddit. Assistant professor at the University of Oregon 
Steve Desch @deschscoveries.bsky.social Professor of astrophysics / planetary science / meteoritics at Arizona State University.
Robert Boessenecker, Dr. of Whaleontology ™️ @coastalpaleo.bsky.social Marine mammal paleontologist, artist, snorkeler, beachcomber, tidepool enthusiast. Blog: www.coastalpaleo.blogspot.com
@viciykevin.bsky.social @viciykevin.bsky.social Ore deposits and Exo-geology at UCD
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
AAS Public Policy @policy.aas.org The American Astronomical Society aims to enhance and share humanity's scientific understanding of the universe, in part through work as advocates for science.
Prof. Brittany Miles @bemiles.bsky.social Assistant Professor at the University of Arizona. Astronomer. Aunty.
She/Her.
https://bemiles.github.io/
infraredastronomy.tumblr.com
SPIE @spie.org Welcome to the official account of SPIE, the international society for optics and #photonics. Over the past five years, we have invested over $26M in the international optics community! 💡
Ben Stiller @benstiller.redhour.com Artist whose mediums include film, tv, and soda. www.StillersSoda.com
Hillary Rodham Clinton @hillaryclinton.bsky.social Doting grandmother, among other things.
Chris Chen @chrispchen.bsky.social PhD Candidate at UCSF DSCB - Wagner Lab @danwagnerlab
Sammy Hasler @sammyhasler.bsky.social interested in directly imaging exoplanets and studying solar system analogs • postdoc at MIT • i love hiking, cooking, and my cats!
snhasler.github.io
Pete Buttigieg @petebuttigieg.bsky.social Husband, dad, veteran, writer, and proud Midwesterner. 19th US Secretary of Transportation and former Mayor of South Bend.
Senator Bernie Sanders @sanders.senate.gov Sen. Sanders of Vermont, Ranking Member of the U.S. Senate Committee on Health, Education, Labor & Pensions, is the longest-serving independent in congressional history.
Mark Cuban @mcuban.bsky.social Entrepreneur
Costplusdrugs.com
Technology Connections @techconnectify.bsky.social I'm that YouTuber who taught you how dishwashers work. Guess I'm tryin' out the whole Bluesky thing now.
he/him
https://www.youtube.com/technologyconnections
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
Erika Dunning @astrodunning.bsky.social (She/her)
Astrophysicist, grad student, teaching associate, and explorer of our beautiful universe. My expertise is in circumbinary transiting exoplanets, moons, and astronomy education/outreach.
Space Telescope Science Institute @stsci.edu STScI is the Science Operations Center for Webb, Hubble, and the upcoming Roman space telescopes, & Mission Operations Center for Webb. We help humanity explore the universe with advanced space telescopes and data archive. news.stsci.edu
The Life of Sharks @thelifeofsharks.com To see weekly new comics, daily comics from our archive and subscriber videos - patreon.com/lifeofsharks. Merchandise from - thelifeofsharks.com
Puffin Books pre-order: https://tinyurl.com/mwdnusyy
Fayth Tan @fungalpals.bsky.social Science writer open to work, recovering Caltech biology PhD. Itinerant dabbler in science history, definitely not a fungal symbiote. Writes about science and the sociocultural zeitgeist. Portfolio: authory.com/FaythTan
Alec Luhn @alecluhn.com Environment reporter @NewScientist.com | Kavli, Schmidt & Covering Climate Now winner 🏆 | 2x Emmy nominee | non-beefeater 🚫🐄 | icemushroom.substack.com ✉️
Dr Chloe Lucas @chloetas.bsky.social Social climate change researcher at University of Tasmania, living and working on muwinina land. Climate communication, serious games, Education for sustainability, Human geography. #CuriousClimate #AcademicSky #GeoSky 
Andy Luttrell @andyluttrell.bsky.social Associate Professor of Psych Science at Ball State. Studies moral opinions & persuasive messages. Science communicator. Host of the podcast "Opinion Science." Letterpress printing enthusiast. He/him.
Katherine J. Wu @katherinejwu.com staff writer at The Atlantic, covering science. former microbiologist / forever cat enthusiast. (she/her) SIGNAL: @katherinejwu.12
C. Brandon Ogbunu @cbo.bsky.social Scientist + Humanist + Pugilist.
"Tip your hat; pop the chain; short Joe Louis; then wipe his nose with the hook. It's that simple." (c) Brother Naazim Richardson
https://linktr.ee/chike98
Jessica Kendall-Bar @jkendallbar.bsky.social Scientist, illustrator, & animator, combining art & science to study the incredible behaviors of extreme divers. Website: jessiekb.com
Scripps Postdoctoral Scholar
@UCSD; PhD @UCSC
Sofia Quaglia @sofiaquagliajourno.bsky.social Award-winning journalist covering all things science and nature, and how we talk about them. Work in New York Times, National Geographic, The Guardian, New Scientist & more... (she/her) website: sofiaquaglia.com
Yvette Cabrera @ycabreraoc.bsky.social 2025-2026 Knight Science Journalism Fellow at MIT; Climate & environmental justice reporter; 2024 Ted Talks speaker; NAHJ immediate past president; Uproot Project founding member. https://publicintegrity.org/author/ycabrerapublicintegrity-org/
Tristan Baurick @tristanbaurick.bsky.social Environment reporter for VeriteNews.org & Grist.org • Covering climate change, energy, pollution, wildlife, Gulf of Mexico, Louisiana's disappearing coast • Past: Times-Picayune, Ted Scripps fellow, Kitsap Sun
https://muckrack.com/tristan-baurick
Sumeet Kulkarni @sumeetkul.bsky.social Science Writer, Astrophotographer
Steven Strogatz @stevenstrogatz.com Mathematician, writer, Cornell professor. All cards on the table, face up, all the time. www.stevenstrogatz.com
Sanjay Mishra, PhD @ecquis.bsky.social Coordinator, Covid-19 & Cancer Consortium (ccc19.org) & the Center for Clinical Cancer Informatics and Data Science (CCIDS) at Brown University | Award-winning popular-science writer
Rodrigo Pérez Ortega @rpocisv.bsky.social Science journalist at @ksjatmit.bsky.social + @science.org | @theopennotebook.bsky.social Español Editorial Director | Views my own | he/him
Dr Patience Kiyuka @pkiyuka.bsky.social Research scientist and science communicator
#SciComm #womeninscience https://www.patiencekiyuka.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
Katelyn Jetelina @kkjetelina.bsky.social Epidemiologist, lover of the ocean and ice cream. Mom of two toddlers. Founder of “Your Local Epidemiologist”. https//yourlocalepidemiologist.substack.com
Jordan Ellenberg @jsellenberg.bsky.social Mathematician, writer, Orioles fan, Wisconsinite, cargo shorts dad
Jacquelyn Gill @jacquelyngill.bsky.social Climate, extinction, and biodiversity scientist at the University of Maine researching Earth’s past for a better future. Writing and podcasting for the planet. Chaotic good professor. She/her.
Brooke Jarvis @brookejarvis.bsky.social contributing writer for The New York Times Magazine, writer for The New Yorker, Wired, and elsewhere, slowly writing a book
Tennessean on the Puget Sound, a pal and a confidant
https://brookejarvis.net 
Brett Walton @waltonbrett.bsky.social Reporting on water and society
Ben Rein, PhD @dr-brein.bsky.social • Neuroscientist by training. Science communicator by choice.
• I explain the brain, without all the mumbo-jumbo
Arianna Long @astroarianna.bsky.social professor studying galaxy evolution & cpo at vanguardstem
servant to my dog. simultaneous coffee + tea snob. dancer. writer.
#BlackinSTEM | autizzy | she/they
Jackie Flynn Mogensen @jackiefmogensen.bsky.social Breaking news reporter at Scientific American (she/her) | Contact me on Signal: @jackiefmogensen.01 | www.jackiefmogensen.com
Sarah DeWeerdt @sarahdeweerdt.bsky.social Freelance science journalist covering biology, medicine, environment. Always gets the name of the dog, but may be too besotted with the dog to remember the name. Working on a family history of my local whales.
Sam Jones, PhD @samjscience.bsky.social science journo • 🎙️executive producer & cohost acs.org/tinymatters • words, pod, videos at sjoneswriting.com • all views mine • she/her/hers
Marshall Shepherd @drshepherd2013.bsky.social Weather-Climate professor and scientist, Host of Weather Geeks, Forbes Senior Contributor, Alpha, 3xFSU Alum...Tweets and RTs are mine but not endorsements
Sapna Parikh, MD, MPH @sapnaparikh.bsky.social Journalist. Artist. Musician. Doctor. Host. Producer. Visual storyteller. Explorer 🌍
Alex Dainis PhD 🧬 @alexdainis.bsky.social Science communicator talking about genetics, biology, chemistry, and blimps. She/her
Ranjini Raghunath @ranjinirag.bsky.social Science writer and editor | https://www.linkedin.com/in/ranjiniraghunath/
Sofia Castelló y Tickell @sofiaatsea.bsky.social Marine conservation & creative communication
Joel Bervell @joelbervell.bsky.social Medical MythBuster 🕵🏾♂️
Diversifying the field of medicine
Seen on NYT, NPR, Today Show
🐶: Yale ‘17
Kyne Santos @onlinekyne.bsky.social Math and science communicator, drag queen, author of “Math In Drag” 💖
My videos: instagram.com/onlinekyne
Miguel Dobrich @migueldobrich.bsky.social Journalist and educator based in Montevideo, Uruguay.
Founder of Dobcast and Amenaza Roboto (@amenazaroboto.bsky.social).
2024 & 2023 Pulitzer Center grantee. Oxford Climate Journalism Network alum. 2018 Tow-Knight Fellow.
Clare Fieseler, PhD @fieseler.bsky.social Journalist covering the ocean and climate change / currently: columnist @sciencepolitics.bsky.social / former: POLITICO, The Washington Post, The Post & Courier / National Geographic Explorer / signal @clare.14
zack savitsky @zacksavitsky.bsky.social science journalist. correspondent @science.org. agent of entropy.
signal: zcs.01
Imari Walker-Franklin, PhD @dr-imari.bsky.social Author of Plastics 📚
Scientist 🌊Microplastics Researcher
🎥 YouTuber💙
UCBerkeley Grad👩🏽🔬
Environ Engin. PhD DukeU
She/her Views are my own
Jordana Cepelewicz @jordanacep.bsky.social Math and science journalist at @quantamagazine.bsky.social
Sarah Goodwin @ssgoodwin.bsky.social Executive Director of the Science Communication Lab @scicommlab.bsky.social
filmmaker, producer, scientist, science communicator 
Bruce Springsteen @brucespringsteen.net brucespringsteen.net
Michael Sandler @thelaxiankey.bsky.social Biophys, Junlab @ UC San Diego // UCSD alpine club // formerly comp geometry @ UIUC
Mostly interested in moderately exotic prokaryote physiology
Michael Merrifield @astromikemerri.bsky.social Emeritus professor of astronomy at the University of Nottingham. Too frequent appearances on YouTube. All my own views.
Claire Lamman @clairelamman.bsky.social NSF postdoc at Ohio State, expert in cosmology and procrastibaking
ClaireLamman.com
sanjana! @sanjanacurtis.bsky.social big fan of stars 💻✨🦫🏳️🌈
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
John Scalzi @scalzi.com I enjoy pie.
Social Media FAQ: https://whatever.scalzi.com/2025/04/16/the-official-john-scalzi-social-media-faq/
Mark Marley @markmarley.bsky.social Personal account. Substellar science since the 80s.
Hank Green @hankgreen.bsky.social Long Time Internet Guy
Matthew Kenworthy @mattkenworthy.bsky.social Professor of astronomy working at Leiden Observatory in the Netherlands on the direct imaging of extrasolar planets and transits of giant ring systems || Opinions my own || Will tell Dad jokes for cash. https://kenworthy.space/
Benjamin Pope @benjaminpope.bsky.social Australian astronomer
he/him
Sydney/Gadi
Dr. Susan E. Mullally @mustaric.bsky.social Astronomer -- Baltimore -- Exoplanets -- Mother -- Choir -- Games
Posts my own.
Dr. Emily Rickman @astrorickman.bsky.social Astrophysicist - European Space Agency/STScI 🇪🇺🇺🇸 Direct Imaging Exoplanets & Brown Dwarfs✨🇬🇧🇦🇺🇨🇭🏳️🌈 she/they
Johanna Vos @johannavos.bsky.social Astrophysicist studying Exometeorology | Associate Professor & Royal Society University Research Fellow at Trinity College Dublin | Visiting Scientist at American Museum of Natural History | she/her | https://johannavos.github.io/
Dr. Gerard van Belle @fringedoctor.bsky.social Active astronomer, intrepid interferometrist, doting dad, happy hubby, heuristic homebrewer, lapsed pilot, former Director of Science at Lowell Obs. Asteroid 25155 van Belle.