Aella @aella.bsky.social aella.substack.com, @aella_girl on X
Mike Boylan-Kolchin @mbkplus.bsky.social Dad, husband, astrophysicist, dog herder. Samuel T. and Fern Yanagisawa Regents Professor in Astronomy at UT Austin. This is a personal account and the views expressed in my posts here are mine. https://mrbk.github.io
Bethany Ludwig @astroludwig.bsky.social Ph.D. in Astrophysics 😈
SOUL Postdoc at KU Leuven 🍫
Discovering massive cannibalized stars 💫
(Drout & Gotberg 2024) 👻 🌈 🔭
Dr. Sü Suri @blacklitsunrise.bsky.social Currently analyzing data to maintain my cats’ lifestyle. Former astrophysicist/academic. I pay for both Audible and Kindle and that says a lot about me. 
Chris Lintott @chrislintott.bsky.social Astronomer, writer and zookeeper. Oxford, Gresham and the Zooniverse. The human half of the Dog Stars podcast. New book: 'Our Accidental Universe' (UK/rest of world) and 'Accidental Astronomy (US) now out.
isak @isakndbr.bsky.social your friendly neighbourhood open cluster enthusiast| galactic archeology & mapping | he/him
Kaila Nathaniel @spacekaila.bsky.social kānaka maoli astrophysics phd candidate at RIT | looking for a postdoc!
massive ⭐️s & compact binaries | population synthesis
she/her
prev: University of Bonn (MSc astrophysics), Virginia Tech (B.S. physics)
kailanathaniel.com
The Tired Scientist @thetiredscientist.bsky.social don’t tell me you aren’t
✉️ you can also dm me your fav sci memes to post here
Bhavesh Rajpoot @bhaveshrajpoot.bsky.social Aspiring Exoplanet Astronomer. Radial Velocities and Direct Imaging. Pre-doc @ MPIA and Universität Heidelberg. Grad Admissions Mentor.
Paul @pauldoesastro.bsky.social M.Sc. Student @MPIA- H Ralph Caspers @hyperjinx.eurosky.social People on ego-trips should buy one-way tickets.
European Space Agency @esa.int Elevating the future of Europe through space.
Please see our Privacy Notice: https://esa.int/connectwithus
Viviana Acquaviva @venividivivi.bsky.social Astrophysicist turned Climate Scientist | AI for Science | Professor of Physics at @cuny.bsky.social; happy camper at @leapstc.bsky.social | Author, ML for Physics and Astronomy: https://shorturl.at/VJ9k9 | Lover of puns, data, good people, and unfinished 
Antonia von Stauffenberg @astroandannie.bsky.social PhD Student at the Max Planck Institute for Astronomy. Working on Exoplanet Clouds ☁️ (she/her) 🏳️🌈
Glen Hunter @astro-hunter.bsky.social [he/they] Research Software Engineer at SCC, KIT. Former astrophysics simulationist. Lover of space, TCGs, D&D and other games! 🏳️🌈
Lucia Härer @lukatha.bsky.social Astrophysics PhD candidate in Heidelberg, passionate about scicom and sporty activites (preferably outdoors) 🏃♀️🏔
CormacLarkin.bsky.social @cormaclarkin.bsky.social Astronomer & STEM Ed researcher
1/4 of @astrosoundbites.bsky.social
Scientists4Future Österreich @s4fat.bsky.social Scientists for Future Österreich halten Euch auf dem Laufenden über #Nachhaltigkeit, #Klima, #Umwelt, #Biodiversität...
Kontakt: public-relations@scientists4future.at
Spenden: https://www.paypal.com/donate/?hosted_button_id=2T4RWFWTRGVTL
Andrew Millar @andrewmillar.bsky.social #OpenData and science policy, interdisciplinarity, biological clocks and plants. He/his.
University of Edinburgh, the Biological Research Data Management team, BioRDM.
New student of #trees.
Avatar credit: Ed Himmelblau.
Mobius Digital Games @mobiusdigitalgames.com An independent game studio located in DTLA. Makers of Outer Wilds and Echoes of the Eye. We make games weird & wonderful. Come explore with us.
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...😜
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
Royal Astronomical Society @royalastrosoc.bsky.social www.ras.ac.uk
Astronomers for Planet Earth @a4e.org Astronomy students, educators, & scientists addressing the climate crisis from the astronomical perspective. Join the conversation with #Astro4Earth!
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
arXiv bot (astro-ph) @krxiv-astro-ph.bsky.social New submissions in arXiv
Category: Astrophysics
https://arxiv.org/list/astro-ph/new
Administrator: krypf @krypf.bsky.social
lit link: lit.link/krypf
Dr Urmila Chadayammuri @uchadaya.bsky.social Astronomy & Astrophysics Editor at Nature, very invested in better life on Earth. Views my own.
Alex Dimoff @adimoff.bsky.social Astronomer, Activist, Baker, Climber ✨🌲
Anirudh @aniboi2001.bsky.social Making fake galaxies (hydro sims) @ MPIA Heidelberg.
Politics, film, chess, computing & tomfoolery.
🍉🏳️🌈🌌
Callie @cjclontz.bsky.social Astronomer
Climate activist
Plant fan
Carolin Liefke @astrophysikerin.bsky.social Astronomy, outreach, education, science communication, mountains, geocaching, radio sondes... and cats. In front of the keyboard for @hausderastronomie.bsky.social, @astro4edu.bsky.social and @sternfreunde.de - she/her- T Taavet Kalda @tkalda.bsky.social
Black In Astro @blackinastro.bsky.social Celebrating and amplifying the Black experience in space-related fields. EST. 2020
✉️ blackinastro@gmail.com
Website: blackinastro.com
https://www.blackinastro.com/black-space-week-2026
HITS - Heidelberg Institute for Theoretical Studies @hitsters.bsky.social Est. 2010 by physicist & SAP co-founder Klaus Tschira & Klaus Tschira Foundation as a private, non-profit research institute. Basic research in natural, mathematical, and computer sciences. Application areas range from molecular biology to astrophysics.
German Space Agency at DLR @dlr-spaceagency.bsky.social 100 % Raumfahrt. Wir sind die Deutsche Raumfahrtagentur im DLR. 100% space. We are the German Space Agency at DLR. 🚀
Impressum: https://www.dlr.de/de/service/impressum
Datenschutz: https://www.dlr.de/de/service/datenschutz
ETH Zurich @ethz.ch Where the future begins. 🚀🔬 One of the world’s leading universities for technology & natural sciences. Posts in both English and German.
www.ethz.ch
Klaus Tschira Stiftung @klaus-tschira-stiftung.de Wir fördern Naturwissenschaften, Mathematik und Informatik.
#bildung #forschung #wisskomm
Datenschutz/Impressum: http://klaus-tschira-stiftung.de/datenschutz
Kat Lee @astrokat.bsky.social PhD student studying the first stars at Uppsala University! Former Astrobites author, GM, cellist, fiber crafter. Show me your cats please
Space.com @space.com Taking you out of this world, every day! 🪐
Scientists for Future 🇩🇪 (S4F) @de.scientists4future.org Scientists for Future Deutschland #S4F
https://de.scientists4future.org/
Wisskomm.de @wisskomm.de Das Portal zu allen Themen aus der #Wisskomm von @w-i-d.de, @nawik.de und @wmk-karlsruhe.de
http://wissenschaftskommunikation.de/impressum/
Heidelberg Laureate Forum @hlforum.bsky.social Connecting laureates of mathematics and computer science with the next generation.
Imprint: http://heidelberg-laureate-forum.org/imprint.html
Universität Wien / University of Vienna @univie.ac.at Offizieller Account der Uni Wien / Official account of University of Vienna.
Es postet http://communications.univie.ac.at 💬
Impressum: http://go.univie.ac.at/impressum Netiquette: http://go.univie.ac.at/netiquette
Nationales Institut für Wissenschaftskommunikation @nawik.de Wir 💚 gute Wisskomm!
🧠 Workshops 💻 E-Learnings 📊 Evaluationen 🗨️ Beratung
https://t.mtrbio.com/nawik
Deutsche Forschungsgemeinschaft @dfg.de Die DFG ist die größte Forschungsförderorganisation und die Selbstverwaltungsorganisation der Wissenschaft in Deutschland:
www.dfg.de
Impressum: https://www.dfg.de/impressum
Social Media-Netiquette: www.dfg.de/netiquette
EMBL @embl.org The European Molecular Biology Laboratory drives visionary basic research and technology development in the life sciences. www.embl.org
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
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
Event Horizon Telescope @ehtelescope.bsky.social We are the Event Horizon Telescope: a global collaboration that captured the first-ever image of a black hole using a virtual Earth-sized telescope.
Instagram, Facebook, Twitter, Mastodon: ehtelescope
eventhorizontelescope.org
Knud Jahnke @knudjahnke.bsky.social Astronomer, Euclid Consortium functionary; likes black holes, galaxies, and sustainable research.
Nature Astronomy @natastron.nature.com A Nature journal dedicated to presenting the very best research across the disciplines of astronomy, astrophysics, cosmology and planetary science.📡
www.nature.com/natastron
STRUCTURES Cluster of Excellence Heidelberg @structures-hd.bsky.social A unifying approach to emergent phenomena in the physical world, mathematics, and complex data.
Website: https://structures.uni-heidelberg.de/
Blog: https://structures.uni-heidelberg.de/blog
(Impressum: https://www.uni-heidelberg.de/de/impressum)
MPIA Library | Bibliothek ⭐ @mpi-astro-bib.bsky.social Library of the Max Planck Institute for Astronomy (MPIA)
Impressum: www.mpia.de/impressum
Toby Rodel 🏳️🌈🏳️⚧️🦕🦖 @astrotobe.bsky.social (They/Them)
PhD astronomer studying exoplanets at Queen’s University Belfast
Lover of dinosaurs 
Simeon Jäkh @simeonjkh.bsky.social Doktorand*in der Soziologie | qualitative Methoden | Soziale Ungleichheit | Queer- und Gender Studies 🏳️🌈
Fishtopher and Friends @fishtopher.bsky.social FIV+ internet cat 🐟animal rescue fan 🐠 spay and neuter your pets
https://linktr.ee/fishtopher
GONZO the Ca'at @gonzo.bsky.social Okrahamblone Cat, 29th moast influenzal
Certified 97.64% goode.
Brothur to @charliebrowntc.bsky.social
Tips for treets: https://ko-fi.com/gonzothebiggkid
My Wares: https://www.redbubble.com/people/charliebrowntc
See also: https://linktr.ee/gonzotheghoast
The Scamperbeasts @scamperbeasts.bsky.social Sugar, Spice, Smudge and Saja, and occasionally guest animals and humans.
Rachel @rachmarie.bsky.social She/her. 3 raccoons in a trench coat. Homer’s human. Not affiliated with any rescue, just sharing some of the wonderful cats available for adoption.
Frank & Joe 🇨🇦 @thehardyboycats.bsky.social Frank and Joe, brothers and besties from Halifax, Nova Scotia
These guys are not AI, they're just weirdos (complimentary)
Ka'ra the tuxedo cat @karaisntactive.bsky.social iM a girl cat who loves naps and my dAde. jUst a fuzzy problem that lives in your house.
Simon 🐈⬛, Jolene 🐈, Flower 🐈⬛🌈, Rachel 😷🏳️🌈 @rachelgoes262.bsky.social Cats!! Here from #CatsOfTwitter , same @
Be the good human your pet thinks you are. #catchatbookclub, #Hedgewatch, retired from running marathon runner w multiple sclerosis , author: A Rose Blooms at Golden Fork on Amazon.
website: www.rewindliveslow.com
Sweet Charlie 🐾📚☕🦕🦖🐓🐶💙✌️ @teresalouise.bsky.social
🐾 names Cat...Charlie Cat 🐾
i judge humans 😼🐾😸
🐾 also turning water bowl over is best fun 😸
#resist 🐸 🌊🌊
#AdoptDontShop #Hedgewatch #guncontrol
"No act of kindness, no matter how small, is ever wasted " ~ Aesop
Fiasco the cat @fiascothecat.bsky.social Fiasco is BIG GENIUS can catch any kind of moth even MAMMOTH am still working on hims SCREENPLAY it is very good no u cannot read it (he/him).
Parkin @parkinkatt.bsky.social HELLOES GOT ANY BISKITS | FOLLOWS CATS | NO D O G S | MITEY HUNTER
16/9/2016-11/3/2026
Miles & Molly @milesnmolly.bsky.social Miles O'Brien and Molly Millions. Two floofy rescue cats in Vancouver, Canada.
🌜Princess Luna the cat🌛 @princessluna.bsky.social Luna is a little, old tuxedo cat living with her Dad.
This a cat account engaging in cat speak, if you donnot like this feel free to mute and block. Please don't add this account to starter packs without asking.
GUINNESS @guinnessisacat.bsky.social AUTHOR. MODEL. ACTOR. A GOOD AND PRETTY BOY. I STEAL FOOD AND BREAK THINGS. OPINIONS ARE MY OWN. HE/HIM. 🇨🇦
Jett @jettstrange.bsky.social I'm here to post pictures of my dumb little cat.
Sometimes I might post about video games, or music. It will be mostly cats though. 
dave wagner @davewagner.bsky.social two things make me happy and two things only: turgid, unworkable political theory and surly cats
всё идёт по плану
bjørnebær @lilbjornebaer.bsky.social house cryptid.
lord of leggies and madness.
sometimes mother draws me.
Cheddar @fartycheddarcat.bsky.social Fearse zombee fiter #ZSHQ, Gween Ops Ninja, #weeti, #IFC, Sooper Hewo, Ham Luver.
My stor: http://fartycheddarcat.etsy.com
My paytweeyon: http://patreon.com/fartycheddarcat
Goby 🇨🇦 @gobycat10.bsky.social Goby was the best boss we could have asked for. Sadly, he retired 🌈 in August 2026. Love you forever 💔
His Staff will continue to post in his honour.
Her Feline Highness @herfelinehighness.bsky.social A colony of three cats just trying to make their way in the world and have a little fun.
Support our treat and catnip habits at patreon.com/user?u=84986233 (Mom translates some of our diaries for you). 
Mousecow @mousecow.bsky.social Being the adventures of a young cat whose principal interests are naps, washbaskets, and skritches. When born, I looked like a cow but was the size of a mouse. (She/her)
http://ko-fi.com/mousecow
A Cat A Day @acataday.bsky.social from the archives of my cats lifes and sometimes guestcats from other countries while traveling, former cats: Gaston and Fantasia (brother and sister), then Clovis and Grisou. Right now Rosie (white, odd eye), Lucy (black and white) and Bruno (white grey)
Коты оборомоты @tailsandwhiskers.bsky.social Документирую будни кота Моркоу, кошки Морриган и кота Спорка.
Личный аккаунт: @nervousenergy.bsky.social
Gryph @lfgryph.com Minnesotan in SC, daughter of Yooper. Sisu. Bi. ADHD. She/her. Writer. Early 40's. Animal shelter worker. TNR. Many cats. :) Links: https://linktr.ee/gryph42 Cat Sanctuary wishlist: https://throne.com/sarahgryph
poorly drawn cats @poorlycatdraw.bsky.social poorly drawing cats since 2016
✉️ hey@poorlycatdraw.com
https://poorlycatdraw.carrd.co/
Ricky 🐯 @ricky.baby home of the my funny, 10/Gay/He/Him/cupholder enthusiast
Teddy & Charlie @thepastrybrothers.com Two orange cats, living the good life in Jackson Hole, Wyoming with @guillermoesteves.com & @kdbirmingham.bsky.social.
Saffron & Her Majestic Floof @saffronsfloof.bsky.social 🐈⬛ + 💁🏻♀️. Daily cat adventures from owner of world’s cutest meow and floofiest tail. Sister to Spice, aspiring friend to Zeo, and big sibling to mama’s foster kittens.
Posts are a lil’ bit of everything, with a dose of mama’s 📸, responses, humor, & whimsy.
Crits For Cats, Inc. Cat Rescue @crits4cats.org Gaming & Rescue Cats! I stream games and my kittencam to raise $ to support cat rescue & TNR, shelter & foster cats! Registered 501c3 non-profit in Northeastern MD 🏳️⚧️ Cat Dad
https://linktr.ee/crits4cats
𝙵𝚎𝚕𝚒𝚗𝚊𝚛𝚒𝚊 @felinaria.bsky.social 𝚈𝚘𝚞𝚛 𝚏𝚎𝚕𝚒𝚗𝚎 𝚘𝚛𝚊𝚌𝚕𝚎! 𝚃𝚑𝚎 𝙲𝚊𝚝 𝚜𝚙𝚎𝚊𝚔𝚜 𝚠𝚑𝚊𝚝 𝚢𝚘𝚞𝚛 𝚜𝚘𝚞𝚕 𝚏𝚎𝚎𝚕𝚜! All posts feature photos of our own cats. 🐾
Só gatos próprios! 🐾
👩🎨 Created by:
🔗 https://bsky.app/profile/maria-andrade8.bsky.social.
🔗 https://bsky.app/profile/denisevoss.bsky.social
Cat Cosplay @catcosplay.bsky.social Cosplaying Cats! Professional Costumes on Cat Models. Don't try this at home. Other Socials: Search Cat Cosplay anywhere.
Business: catcosplayinc@gmail.com
Logo: @avivor.bsky.social
Holly Brockwell @hollyqueenofspayeds.com Tech, cats, cat-tech & being catty about tech. Basically I'm a tech writer who also runs a cat rescue. Well, I do have a lot of mice.
harper gruffy 💛 @harpergruffy.bsky.social i'm cat / fiv+ / 12 years old / gotcha day: 11/18/22 / momb is @taylertalks.bsky.social (30 y.o) / banner: @cupohjoe.bsky.social
I have alien ray vision. pet commissions: https://shorturl.at/vUbz6 (Vgen)
Biscoito 😺 & Bianca 👩 @biscoitothekitty.bsky.social The adventures of my cute tabby cat! He's either sleeping or causing chaos
Human: Bianca she/her
Slothy @slothy666.bsky.social Now I am become sleepy, taker of naps
Cat dad to Chadwick and Desperado, collector of trinkets, lover of the old and obscure.
Cat mom is @meobrien1991.bsky.social
Adopt, don't shop
Jude @heyjudehobson.bsky.social 😽 Treat Fund: https://ko-fi.com/judehobson
Living my best #FIVCatsClub life. I wear my heart on my chest 🖤 Found my home thanks to Cats Protection. Founder of #GogurtClub 👅 Profile pic by https://bsky.app/profile/bumcchi.bsky.social
Vietnam Cat Welfare @vietnamcatwelfare.org Rescuing cats in Vietnam since 2009 and providing a safe shelter for more than 110 precious animals.
We are a UK registered charity (#1165729) based in Hội An 🇻🇳
🔗 vietnamcatwelfare.org
🎗️ patreon.com/VietnamCatWelfare
Dougie @dougiethreelegs.bsky.social Three-leggy none-tail boy from the West of Ireland.
https://www.instagram.com/dougiethreelegs?igsh=ZGFkZDF5bGdwZGlx
A nise plase, to enchoy the Musings of Duggy. Only nise vibes plese,, none meen ore hate aloud !!
Maha @mahati.bsky.social 
Natalie Wynn @contrapoints.bsky.social Ex-philosopher, ex-Tweeter.
Email: info@contrapoints.com
Abigail Thorn @theabigailthorn.bsky.social Actress, Writer, Creator of Philosophy Tube ⚔️
Lohar in HOUSE OF THE DRAGON; Eurus in STAR WARS; Nocturne in BALDUR’S GATE 3; Hotspur in THE PRINCE; also @KillJamesBond ✨👑
Mara Wilson @marawilson.bsky.social Writer, actor, audiobook narrator, notorious tryhard 
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. 🖖🏼😋❤️
Fabian Ruperti @fabianruperti.bsky.social Evolutionary molecular biologist/biochemist | Postdoc @ UQ, Brisbane | former PhD @ EMBL, Heidelberg | Sponges, other non-Bilaterians and proteomics
Frosty Goblin @frostygoblin.bsky.social Just a guileless cavern fey, decanted gently over ice. 🏳️🌈🇨🇦 in 🇩🇪, he/him.
Here for the manifold intersections of queerness, horror, ceramics. And video games I guess.
Trans kids deserve respect • BLM • ACAB