Michael Busch @michael-w-busch.bsky.social Planetary astronomer, studying piles of rock in space. Reader of books. Drinker of tea. He/him. This is a personal account. To bigotry no sanction.
Reymond Aguinaldo @mondinspace.bsky.social Space, science and wonder. Personal account. Views and opinions my own. Socials: @mondinspace
Dan @danhoak.bsky.social Radio science at MIT Haystack Observatory. Formerly: x-rays with OSIRIS-REx, gravitational waves with LIGO, Fulbrighter in Pisa at EGO/Virgo. He/him.
Ryan Volz @thrantastic.bsky.social Data scientist specializing in radar. Maintainer of radioconda (https://github.com/ryanvolz/radioconda).
John Debes @johndebes.bsky.social ESA/AURA astronomer at STScI. Opinions my own. I study exoplanets and disks around stars.
U.S. Scientific Committee on Antarctic Research (US-SCAR) @usscar-antarctic.bsky.social US-SCAR is a focal point for U.S. participation in the Scientific Committee on Antarctic Research (SCAR). https://usscar.org/
NASA | ESA Space Updates @nasaupdates.bsky.social Space news from around the globe, all in one place
Focusing on NASA & ESA Missions
Artemis II 🚀🌕
Note we are not NASA just #Spacenerds #Moonjoy
Scientific Committee on Antarctic Research (SCAR) @scar-antarctic.bsky.social We facilitate international research on the Antarctic and Southern Ocean and provide independent scientific advice.
www.scar.org
Join us for #scar2026!
Space Sciences Laboratory @ucbssl.bsky.social The UC Berkeley Space Sciences Laboratory (SSL) designs, builds and operates high-return, low-cost NASA missions. Our engineers, scientists and staff support a wide range of space and ground-based projects. 👇
https://www.ssl.berkeley.edu/
Bridgewater State University Observatory @bsuobservatory.bsky.social The Bridgewater State University Observatory is on top of the BSU Science and Mathematics Center—we do outreach, research, and astrophotography!
Physics World @physicsworld.bsky.social News, views and information for the global physics community. physicsworld.com
Paul Byrne @theplanetaryguy.com Associate Professor of Earth, Environmental, and Planetary Science at Washington University in St. Louis • NASA Planetary Data System Geosciences Node Director • Explorers Club EC50 • 🇮🇪 & 🇺🇸 • he/him
Manda Adams, PhD @mandaadams.bsky.social Posts on here are my own views and not my employers.
bittycar @bittycar.bsky.social NY gal who likes stuff.
IAU Office of Astronomy for Education @astro4edu.bsky.social The Office of Astronomy for Education (OAE) of the International Astronomical Union, hosted at @hausderastronomie.bsky.social
https://haus-der-astronomie.de/de/impressum
ITRF @itrf-refframe.bsky.social The Internional Terrestrial Reference Frame - https://itrf.ign.fr/
A foundation for #EarthScience research, #satellite navigation & #geoinformation.
#ITRF2020 #ITRF 🌐🌏
IGN, IPGP
ESO @eso.org The European Southern Observatory designs, builds & operates world-class observatories on the ground for the benefit of society. More info on eso.org
IAG + GGOS Geodesy @iag-ggos.bsky.social Official account of the International Association of Geodesy #IAG and its Global Geodetic Observing System #GGOS.
Explore the #Science of #Geodesy: Measuring #Earth 's #shape, #gravity, and #rotation for a sustainable future.
Mark Cuban @mcuban.bsky.social Entrepreneur
Costplusdrugs.com
Ed Markey @edmarkey.bsky.social U.S. Senator fighting for the families and future of Massachusetts. Malden Native, Red Sox Fan, Net Neutrality Defender, co-author of the Green New Deal ( he/him )
Chasten Glezman Buttigieg @chastenbuttigieg.bsky.social Dad, author, teacher, macaroni and cheese maker. PAPA’S COMING HOME is an instant NYT bestseller and on shelves now!
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
Patton Oswalt @pattonoswalt.bsky.social Writing and yelling. 
Kieran Meadows @kieranbluesky.bsky.social 🖊 Journalist @forbes.com
🎙️ Editor & Host, Forbes Daily Briefing
🎶 Musician. DJ. Producer.
📍Brooklyn-native. NYC🗽
Falo🇧🇷português.
📻 Former Radio Host @ The REFRESH
Formerly: Democracy Now!; ABC News Investigative Unit; WNYC Radio; Carnegie Fellow
Aaron Rupar @atrupar.com Independent journalist, SnapStream brand ambassador, and publisher of the Public Notice newsletter https://www.publicnotice.co/subscribe
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
✨🇨🇦🏳️🌈✨
Sherwood Observatory @sherwoodobs.bsky.social Inspiring STEM learning, growing future skills, bringing prosperity through our Planetarium, Observatory and Science Centre
Popehat @kenwhite.bsky.social Defunct account of Ken White, criminal defense attorney and First Amendment litigator. Co-host of Serious Trouble podcast and writer at The Popehat Report. Opinions here are my own. Decent people fight evil.
Signal: KenWhite.1969
Hunter Walker @hunterw.bsky.social Investigative Reporter @ TPM | Author | Words In: The New Yorker, Rolling Stone, Vanity Fair, New York Magazine, The Atlantic
Send me a secure message on Signal: hunter.07
https://linktr.ee/hunter_walker
Öykü Koç @oykukoc.bsky.social Geodesist or Dr. of gravity, one might say. I track the changes in total water storage etc. / a bird nerd / here, you will find things from climate to anti-capitalism, anti-imperialism and so on.
(she/they)
Mark Gorski @radiouniverse.bsky.social Astronomer with a passion for cosmic chemistry! Currently exploring the complex interplay between the interstellar medium, star formation, and black holes. 
Science Math and Tech Fan @sciencemathtechfan.bsky.social Data guy. #TheResistance (again)
Amy Lynn @amylynnm.bsky.social Voted for Harris/Walz. That should mostly sum it up. Rural MN, lover of books, music, equal rights, gardening and outdoors.
Carlos R Munoz @carlosrmunoz.bsky.social I’m a reporter at the Boston Globe in Rhode Island. Reach out at carlos.munoz@globe.com.
☀️ Env Science undergrad @uarizona.bsky.social CALES.
Teagan Clarke @astroteagan.bsky.social Postdoc | gravitational-wave astronomer | Princeton University | 💫 🏳️🌈 🇦🇺
Denver Astronomical Society 🔭 @denverastro.bsky.social Our mission is to increase public knowledge about #astronomy, promote the importance of maintaining dark skies, and encourage careers in astronomy, #space science, #astrophysics, and other physical sciences.
Join us at denverastro.org
#das #denverastro
Kazu Akiyama @kazuakiyama.bsky.social Deputy Project Scientist of EHT (@ehtelescope.bsky.social), @Heriot-Watt (@heriotwattuni.bsky.social), ex: PI@MIT (@haystack.mit.edu). Photographing black holes. Dad. @Edinburgh, Scotland🏴, UK🇬🇧
Tweeting in 🇬🇧/🇯🇵
Website: https://sites.mit.edu/kazuakiyama
Huib van Langevelde @huibjan.bsky.social astronomer
Chamberlin Observatory @chamberlin-obs.bsky.social The University of Denver's historic Chamberlin Observatory, 2930 E Warren Ave, 303-871-5172. We host astronomy classes and public events by @denverastro.bsky.social. Schedule at www.denverastro.org.
⭐Supported in part by federal grant funds.⭐
Jeri Ryan (official account) @jerilryan.bsky.social Actress, mom, wife, foodie, gardener. Not necessarily in that order. Trying to make a better world for our kids. Star Trek: Picard. That’s CAPTAIN Seven to you. 🖖🏼😋❤️
ASTRON @astronnl.bsky.social ASTRON is the Netherlands Institute for Radio Astronomy. Our mission is to make discoveries in radio astronomy happen. We develop new and innovative technologies, operate world-class radio astronomy facilities, and pursue fundamental astronomical research.
HaystaqDNA @haystaq.bsky.social https://haystaqdna.com/
We pioneered the use of predictive analytics in political campaigns, changing the way candidates and committees talked with voters and helping the Sanders and Obama Campaigns make history.
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 :)
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
Tessa Vernstrom @tvern23.bsky.social Radio astronomer based in Perth Australia. Project scientist for EMU survey. Lover of radio galaxies, cosmic magnetism, and things lurking below the noise (and my dogs).
Dr Laura Driessen @astrolaura.com Radio astronomer and science communicator at the University of Sydney. Die hard Melbourne demons fan. Opinions are my own. www.astrolaura.com
Shami Chatterjee @astrochatterjee.bsky.social Astronomer, book lover, photo enthusiast, dad. I'm probably on a telecon right now.
Marcus Lower @astromelow.bsky.social Astrophysicist | ARC DECRA Fellow at Swinburne | Timing pulsars & magnetars | Coffee enthusiast
Website: https://mlower.github.io
Emil Lenc @elenchically.bsky.social Radio astronomer, casual photographer and software/electronics engineer (not necessarily in that order) with a passion for all things nerdy and/or humorous.
Matthew Whiting @redqso.bsky.social Astronomer, ASKAP pipelines, Galaxy finding, Infrequent posting
Alyssa Drake @abdrake.bsky.social Astrophysicist @ Herts. Brit who was lost in France, German forest & now Hatfield. Ex MNRAS AE. Worried about UK science & in general.
Dr Wendy Williams @cygnusww.bsky.social SKAO project scientist - Radio Astronomer - LOFAR minion - South African at large - opinions my own - she/her
Simon Ellingsen @amasingsimon.bsky.social Executive Director at the International Centre for Radio Astronomy Research. Opinions my own
Ujjwal Panda @astrogewgaw.bsky.social listening to the universe chatter in the radio 📡. coding to decode the cosmos 💻. fast radio bursts and pulsars. he/him/his.
Dominique Segura-Cox @seguracox.bsky.social Radio astronomer studying protostars. Redneck. First-gen student. "Yes, and..." Assistant Professor of Astronomy at the University of Rochester. Personal account. I like leadership and mentoring. seguracox.com
Emma Chapman @dreochapman.bsky.social Astrophysicist, author and science communicator
linktr.ee/astro.emmachapman
Dr. Michele L. Silverstein (she/her/hers) @silverstronomy.bsky.social ⭐ PhD Astronomer. Seeking a new role in astro or as a data analyst or project manager. Open to a variety of career directions. ⭐
Low-mass stars, exoplanets, & observational astronomy at NASA, Navy.
https://www.linkedin.com/in/michele-silverstein-48089337
Stefan Duchesne @sunmish.bsky.social Radio astronomer fond of making images of the sky, painting and photographing small things, and playing video games. They/them.
JudeCroston @judecroston.bsky.social Astrophysicist at the Open University, UK
Andreas Brunthaler @brunthal.bsky.social Astronomer at the Max Planck Institute for Radio Astronomy
Main interests are the Milky Way and the Local Volume.
Also found at brunthal@astrodon.social
Dr Robert Minchin @robminchin.bsky.social Radio astronomer at NRAO, posting on a personal basis. Affirming Christian (Episcopalian). Alumnus of Durham (MSci) & Cardiff (PhD). He/him.
Rob Beswick @robbeswick.bsky.social Dad, husband, radio astronomer, and joderellite. Helping run eMERLIN, developing the UK's SKA Regional Centre and other fun things to enhance radio astronomy!
Minh Huynh @astrominh.bsky.social Radio astronomer. Politics nerd. Avid ultimate frisbee player. Comic book geek and MCU fan. Opinions own. she/her, dr 🏳️🌈
@spectrumx.bsky.social @spectrumx.bsky.social 
José Rodríguez @josecrodriguez.bsky.social Geodesy. GGOS. Alma mater: shooting lasers at satellites.
Paul McMillan @mcmillan-astro.bsky.social Astrophysicist working on Milky Way dynamics and Gaia data. University of Leicester. Views expressed are my own.
Website: https://paulmcmillan-astro.github.io/
A. Suárez Mascareño @asuarezmascareno.com Hunting low mass exoplanets.
Christian Fröschlin @chrfrde.bsky.social Amateur astronomer from urban 15th floor balcony. Celestron 8" / Lunt 40 / Galileoscope. Software developer. Image processing / HALCON. Fledgling skeptic. He/him.
Sloan Digital Sky Surveys @sdssurveys.bsky.social Mapping the Universe since 1998. Featuring @milkywaymapper.bsky.social, @blackholemapper.bsky.social, and @localvolumemapper.bsky.social. We'll let you know when we are done.
sdss.org
Yao-Yuan Mao @yymao.bsky.social Astrophysicist at U of Utah studying small galaxies and dark matter using astronomical surveys and simulations || teacher || programmer || 茅耀元 || they/he || 🏳️🌈 || http://yymao.github.io || https://astro-outlist.github.io
astropy @astropy.org A community effort to develop a common core package for Astronomy in Python and foster an ecosystem of interoperable astronomy packages.
Web: astropy.org
Source: github.com/astropy/astropy
Docs: docs.astropy.org
Tutorials: learn.astropy.org
ASCL (Astrophysics Source Code Library) @asclnet.bsky.social Making astrophysics research source codes discoverable since 1999
editor@ascl.net
Royal Astronomical Society @royalastrosoc.bsky.social www.ras.ac.uk
Linn Boldt-Christmas @nplinnspace.bsky.social 🇸🇪🚀🇪🇺 Astrophysicist in govt space research 🪐🔭 Also: exoplanets, astrobiology, telescopes, climate, equality/EDI, and scicomm ✨ (she/her) – linnboldtchristmas.wordpress.com
Thomas Carpentier @thocarp.bsky.social PhD Researcher at the EUI in Firenze, studying the history of the European Space Agency.
Processing space telescopes data for fun
28
He/him
Fun Fact Science with Kovi @funfactscience.com Astrophysics PhD candidate studying stars that go snap, crackle, and pop - communicating scientist - meme aficionado. - M Michael Zingale @michaelzingale.bsky.social computational astrophysicist
open source tool developer
professor
blower upper of stars
can recite π to 2 decimal places from memory
star wars fan
coffee aficionado
https://zingale.github.io
Meredith Rawls @merrdiff.bsky.social Astronomer at UW, data pipeline wrangler for Rubin Observatory, satellite mitigation leader via IAU CPS SatHub, mom, violist, Ballardite (Seattle), family cargo e-bike evangelist, Episcopalian, etc. Opinions all mine
Prof. Joey "Barely a Footnote" Neilsen @joeyneilsen.bsky.social Black hole astrophysicist at Villanova. Formerly: MIT, Boston University, Harvard, Kenyon College | X-rays | husband | dad of 2 | cooking. He/him. Skeets are my own.
CatherineQ @catherineq.bsky.social Astronomer, science communicator, over-thinker extraordinaire. @AucklandUni space person @AucklandSpace. Autoimmune illness. 🇳🇿🇺🇸
💀Adina Feinstein PhD 💀 @afeinstein20.bsky.social asst prof | astronomy PhD | MSU | https://adina.feinste.in
Carl Rodriguez @carlrodriguez.bsky.social Professor of astrophysics at UNC, studying colliding black holes, swarming stars, and other things that go bump in the night. Big fan of transit, biking, climbing, Durham NC, he/him
dynamics.unc.edu
Jennifer L. Hoffman ✨😷 @astroprofhoff.bsky.social Astronomer, professor, birder, singer, cat communer (she/her)
University of Denver, @chamberlin-obs.bsky.social
Past Grand Canyon Astronomer in Residence
Benjamin Pope @benjaminpope.bsky.social Australian astronomer
he/him
Sydney/Gadi
Dr Alfredo Carpineti @drcarpineti.bsky.social Astrophysicist, science writer for @iflscience.com, geek, immigrant, and also The Astroholic. Chair of @prideinstem.bsky.social | 📖 Invisible Rainbows out May 21 | He/him | 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
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. 
Dr. Kelley Hess @khesser.bsky.social Astronomer/Senior Researcher at Onsala Space Observatory/Chalmers University, Sweden; ultra runner, adventure racer, cyclist. Ironman WC 2012, 2014. Xterra World Champs 2014.
Michael Merrifield @astromikemerri.bsky.social Emeritus professor of astronomy at the University of Nottingham. Too frequent appearances on YouTube. All my own views.
Dr. Raphael Marschall @spacemarschall.net Associate Professor of Experimental Physics at the @unibe.ch
Co-I of ESA's Comet Interceptor, collaborator on NASA's Lucy and ESA's Rosetta missions.
www.spaceMarschall.net
(he/him)🇨🇭🇺🇸🇫🇷
#asteroids #comets #protoplanetarydisks #planetaryScience 🧪🔭🚀🛰️☄️
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
Andrea Luck @andrealuck.bsky.social 🛰️🪐 Space voyager processing space images 📡💻
🎞️ HD Photostream: https://www.flickr.com/photos/andrealuck/
🎋Other places: https://linktr.ee/andrealuck
🌍Glasgow, Scotland 🌱 (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/
Christopher Berry @cplberry.bsky.social Gravitational-wave astrophysicist. University of Glasgow Senior Lecturer. Science, education, LEGO & cake. May contain traces of nuts
🐘 https://mastodon.online/@cplberry
📚 https://cplberry.com
Prof Stephen Serjeant @stephenserjeant.bsky.social Astronomy Prof at Open University. 26.2. #RejoinEU, £➡️€. Views not OU’s and often not even mine. He/him
🐘 https://mas.to/@stephenserjeant
🧵 https://www.threads.net/@prof.stephen.serjeant
ORCID 0000-0002-0517-7943 https://orcid.org/0000-0002-0517-7943
Bibiana Prinoth @handle.invalid 🇨🇭
• ESO fellow @eso.org exploring exoplanet atmospheres 🪐 🔭 🇩🇪
• PhD from Lund Observatory 🇸🇪 & ESO 🇨🇱
• passionate about all things outreach and science communication ✨
Astronomy Picture of the Day 🪐 @apod.shinyakato.dev Official Mirroring APOD BOT for Bluesky.
https://apod.nasa.gov/apod/lib/about_apod.html
Src:
https://apod.nasa.gov/apod/astropix.html
http://star.ucl.ac.uk/~apod/apod/astropix.html
Maintained by @shinyakato.dev
Jwst Feed @jwstfeed.bsky.social James Webb - Everything That's Hot 🔥
jwstfeed.com
Dr Jake Taylor @astrojake.bsky.social Astrophysicist at the University of Oxford. Researching the atmospheres of exoplanets.