UW–Madison Data Science Institute @uwdsi.bsky.social Powered by American Family Insurance
UW–Madison @uwmadison.bsky.social Official account for the University of Wisconsin–Madison. On, Wisconsin! 👐
wisc.edu
DC Rainmaker @dcrainmaker.com I write about sports tech and endurance sports. I also put together some pretty detailed product reviews along the way...stop by the site to check it out. Once DC, then Paris, Amsterdam, and now Mallorca.
Http://www.dcrainmaker.com
Sarah Taber @sarahtaber.bsky.social Small farmer, ex-farm worker, crop scientist. Here to talk food, farms, & money.
https://www.youtube.com/@FarmToTaber
Matt Murphy @mjosmurphy.bsky.social Insect behavioral ecologist.
Inverts * neural systems * evolution * bioinformatics * science shitposts * anthro animals
Rabbit liker 🐰🐇
Posts are my own opinion.
https://web.archive.org/web/19991128095921/http://www.zombo.com/
Jerry W. Dragoo, Ph.D., Mephitologist @jwdragoo.bsky.social "Dragoo is no longer the center of their universe."
- F. Murray Abraham, 2009
cornelloverfield.bsky.social @cornelloverfield.bsky.social Law of the sea, maritime issues, international security, esp. in Europe & Arctic. CNA. Currently: 🇩🇪. Previously 🇰🇬🇺🇸
Joe Slowik @pylos.co Threat Intel / CTI / OT / ICS / Critical Infra stuff along with other things. I genuinely care, and wish others did too.
Website: pylos.co
Training/Consulting: paralus.co
Tyler Nordgren @spaceart.bsky.social Artist, Astronomer, Author, International Tour Leader, Speaker and all around Astronomical Bon Vivant coined the phrase “Half the park is after dark.”
Ologies with Alie Ward @ologies.bsky.social A comedyish science podcast hosted by @alieward. Asking smart ologists not-smart questions about their professional obsessions. Every Tuesday. May be NSFW. https://linktr.ee/alieward
Don Moynihan @donmoyn.bsky.social Policy Professor, Ford School, University of Michigan.
Irish immigrant. Administrative burdens guy.
Free newsletter, Can We Still Govern?: https://donmoynihan.substack.com
KidzBoptotenlieder @theodramatist.com Rector Trinity Episcopal, Oshkosh | Coleridge | editor-in-chief Earth & Altar | he/him | Sewer Socialist | orgulloso floridiano | Drawings at theodramatist.com/saints | blog at theodramatist.com/warmthlight-blog
Tressie McMillan Cottom @tressiemcphd.bsky.social Professor. Sociologist. NYTimes Opinion Columnist. Books: THICK, LowerEd. Forthcoming: 1)Black Mothering & Daughtering and 2)Mama Bears.
Beliefs: C.R.E.A.M. + the internet ruined everything good + bring back shame.
“I’m just here so I don’t get fined.”
Watch Duty @watchduty.org Helping you stay safe from wildfires and floods when seconds count.
Quantian @quantian.bsky.social Locked in and posting regularly on here now
Paul Ruscher @prusch.bsky.social Writer/Volunteer/Widower, Dad, Grandpa • ❄️☮️⚾️• retired atmos sci/climate prof & sci/math/sust/engr CC Dean; still mostly sane. Fellow, Amer Meteorol Soc. Coming here more often now. Our republic is in danger. Inspired by Silence Dogood.
Laurence “eff rich people ” Fox @fox-e-laurence.bsky.social Author of “This Has Always Been A War” & “This Book Is A Knife.” Yukoner working in conservation, founder of Outfox Research & Consulting. Anarchist praxis or bust. Death to
Capitalism.
🏳️⚧️ 🏳️🌈🏴
fox-writes.com for books
Dangerouslyclever.com for consulting
Tom Morrell @tmorrell.bsky.social Research Data, Software, Repositories, and E-bikes.
Marc Kuchner | Author @marckuchner.bsky.social Dad. Author of the Cosmic Collisions books. Astrophysicist and Participatory Science fanatic @nasa. www.marckuchner.com
Dan Visioni @danvisioni.bsky.social Climate scientist studying aerosols, chemistry, radiation, climate & society from Volcanoes 🌋and Climate Intervention. Assistant Professor at Cornell EAS, from 🇮🇹proudly🏳️🌈 More at https://dan-visioni.github.io/ and https://www.wcrp-climate.org/ci-overview
Faye McNeill @vfmcneill.bsky.social @Columbia prof, aerosol science, atmospheric chemistry, air quality (esp. in India), climate, chemical engineering, and whatever else is on my mind 🌇 she/her
Nicholas Thompson @thompn4.bsky.social I make small reactors.
post malone ergo propter malone @proptermalone.bsky.social mostly politics. some Seahawks.
Normal Man.
oh and one more thing
you aren’t going to like
what comes after America
Mike Yass @mikeyass.bsky.social WW3 has already started it’s just unevenly distributed | Aerospace, AI, and a real-life #polycythemiavera mutant.
Deimos @musingsofdeimos.bsky.social Intermittent musings on life, the universe, and everything à la irreverent and sometimes dark humor.
he/him
barbylon @barbylon.bsky.social Principal Instigator. Category 1 mind, Category 4 attitude. 🧪🔭🚀
BeijingPalmer @beijingpalmer.bsky.social Deputy editor at Foreign Policy, China nerd, gaming nerd, reads a lot. Never again a country without consequences.
beany tuesday @beanytuesday.bsky.social one man peanut gallery
Patreon.com/beanytuesday
Instagram.com/beanytuesday
Simon Kuestenmacher @simongerman600.bsky.social German #geographer and #demographer in #Melbourne. I love and share #maps and #data that explain how the #world works.
Duaa Eldeib @deldeib.bsky.social Investigative reporter @propublica.org
Meg Gardiner @meggardiner.bsky.social #1 New York Times bestselling author 
Dr. Drew Brayshaw 🌊🪨 @drewbrayshaw.bsky.social Hydrologist, photographer, geoscience consultant, mycophile, sarcastic, dude.
Jessica Zellers @stellagarp.bsky.social Jessica is an editor, writer, dancer, and smut peddler. Stella is her unpublished pseudonym. She/they.
Trying to make "I hate AI" my whole entire personality.
Hire, tip, or subscribe https://linktr.ee/bluelegenddancer
Bill Cresko @wcresko.bsky.social Lorry Lokey Chair & Professor of Bioengineering, Knight Campus, University of Oregon. evolution | ecology | genetics | genomics | evodevo | systems biology | epigenetics | host-microbe. Educational empowerment & increasing opportunities for all in science.
Paul Kelleher @paulkelleher.net Moral & political philosophy, climate econ, bioethics
Author of *The Social Cost of Carbon* (OUP 2025) | Posting in personal capacity
Likes: Boston Celtics ☘️, Maine (from whence I come), bouldering, ebikes, funding public ed.
paulkelleher.net
Garrett M. Graff @vermontgmg.bsky.social Journalist & Pulitzer finalist Historian. Fmr ed, @PoliticoMag & @washingtonian. Author of "Watergate: A New History" and "The Only Plane in the Sky" and other books. garrett.graff AT gmail OR ProtonMail. Subscribe to my newsletter: Doomsdayscenario.co
Ana Marie Cox @anamariecox.com Contributing editor @newrepublic.com Co-host of Space the Nation (sci-fi meets politics) + @pastduepodcast.com (gig economy, culture, survival). I lead The Third Story Workshop, helping writers tell the(ir) truth. Matthew 25:35 voter.
anamariecox.com
There Is No Spoon @neumahn.bsky.social Progressive, spacecraft engineer, photographer, traveler, astronomer, founder/CEO of two successful spacecraft robotics startups, designed part of the F-22, my hardware is on Mars and in the Smithsonian, all statements are my opinion.
Matt Phelps @themattphelps.bsky.social Fairbanks, Alaska
weather, music, travel
UAF Climate and Arctic Sustainability
alaskawx.com
Tim Heidecker @timheidecker.bsky.social Tour, On Cinema at the Cinema, Office Hours, find it all and more at linktr.ee/tim.heidecker
Katelyn Burns @katelynburns.com Freelance journalist. @ms.now and Xtra Magazine columnist. Co-founder: The Flytrap. Cancel Me, Daddy podcast co-host.
Replies limited to followers only.
Check if my post is a joke before flaming me please.
For story leads, my signal is kab.80
Joshua Erlich @joshuaerlich.bsky.social civil rights lawyer, exhausted
DM for Signal info
Kai Ryssdal @kairyssdal.bsky.social Dad, husband. IPAs. Soccer referee, trail runner, mountain biker. Veteran.
Climatologist49 @climatologist49.bsky.social PhD Climate Scientist. Alaska. The Earth is warming because of us. Mooseologist. All opinions are my own. Future FIFA Peace Prize winner. Signal: Climatologist.49
Colorado Climate Center @climate.colostate.edu Climate monitoring, climate research, and climate services for Colorado.
Based at the Department of Atmospheric Science, Colorado State University. https://climate.colostate.edu
Russ Schumacher @rschumacher.cloud "an upbeat atmospheric science professor" -- theverge | sometimes it snows in April | Fort Collins, Colorado | personal account
Derek Fox @partialobserver.bsky.social Penn State Astronomer (he/him), personal account. “We went and made everything a computer without ever bothering to fix computers.” 
Helen Shin @h-x-s.bsky.social She/her.
Formerly @H_X_S on Twitter.
Megan Kate Nelson 📚 @mkn.bsky.social I am a Colorado-born and raised, Boston-based writer, historian, and Pulitzer Prize Finalist. I am the author of "The Westerners" (2026), “Saving Yellowstone” (2022) and “The Three-Cornered War” (2020). More details at https://megankatenelson.com
Ben Warner @bpw87544.bsky.social Biotech, robotics, critical minerals
Formerly at Los Alamos
PhD Chemistry (MIT)
He/him
Likes often used to save, does not necessarily mean agreement
michael @radplanets.com planetary scientist, allegedly 🪐
baltimorean, actually 🦀
not a professional account but I do talk about science sometimes
ig: radplanets_
Simeon Schmauß @stim3on.bsky.social dabbling with photogrammetry, astrophotography, GIS and more...
https://sschmaus.github.io/links/
yellowstoneten @yellowstoneten.bsky.social spaceflight nerd, if the banner pic didn't give that away
new name time! Tali, if you please.
(they / them, in a "gender currently under renovation" sort of way)
Dr. Caitlin Ahrens @ahrensscience.bsky.social Planetary scientist, lunar exploration and sustainability policy. Lunar architecture and risk analysis nerd! UMD-CRESST-II Asst. Research Scientist at NASA GSFC. Science Outreach! Ten Outstanding Young Americans 2018. WVU alum. Views are my own.
Jason Hutt @jthutt.bsky.social NASA Human Spaceflight for 25+ years. Displaced Philadelphian. Go Birds! Amateur photographer. Occasional sci-fi writer.
Sent people to the Moon!
Go then. There are other worlds than these.
https://otherworlds.picfair.com/
Gregor Kalinkat @gkalinkat.bsky.social science educator & communicator | biodiversity scientist | animal ecologist | guest scientist at @igb-berlin.de
posts in EN and DE, occassionally in ES
https://linktr.ee/gkalinkat
TJ Vissing - Photographer @tjvphoto.bsky.social Commercial photographer, shooting mostly product and food photography for 30 years. most recently building a library of images from my travels and engagement with nature.
travel.omsphoto.com
tjvissingphotography.com
Zach Dorfman @zachsdorfman.bsky.social National Security Reporter. Features in Politico, Rolling Stone, Wired, Foreign Policy. Working on a book on the history of deep cover for Penguin-Random House.
It’s always Berlin 1989 somewhere. Email: thebrushpass1@protonmail.com
Mr. M @mrmoseley.bsky.social California native, dog rescuer 🐕, lover of the outdoors 🌲🌵🏖, nuclear power supporter ⚛️, and a friend of the Earth 🌎. Slava Ukraine! 🇺🇦 Free Palestine! 🇵🇸
Enrique Arribas-Garde @garde24.bsky.social Theoretical physicist researching radiofrequency electromagnetic fields and exposure (RF-EMF). Fascinated by magnets since childhood. Físico teórico investigando la exposición a campos electromagnéticos de radiofrecuencia. Amante de los imanes desde niño.
Robert McNees @mcnees.bsky.social Physicist and Professor at a university in Chicago. I study black holes, quantum gravity, and cosmology. Rocky Top, Tar Heel. Reposts are spooky action at a distance.
My views, not my employer's.
https://jacobi.luc.edu
https://mcnees.github.io
Drex @drex.dev #Elixir "engineer" at @cargosense
Tweets and views my own
Amateur Science, Technology and Society Scholar
https://twitter.com/stsDrex (@stsDrex)
http://masto.ai/@drex
John Scalzi @scalzi.com I enjoy pie.
Social Media FAQ: https://whatever.scalzi.com/2025/04/16/the-official-john-scalzi-social-media-faq/
Nome @nome.bsky.social Please don't use unroller bots on my threads.
ADHD, TTRPGs, Queer Shit, Nerd Shit, History, Animals. Will yell about Star Trek on demand.
Queer, Disabled, He/Him
🐦@NomeDaBarbarian
💰 https://ko-fi.com/nomedabarbarian
📌 Denver
Jim Musil Painter @jimmusilpainter.bsky.social Modern Landscape Painter
JimMusil.com
Michelle Cyca @michellecyca.com it's "see-sa"
hot takes bureau chief @thenarwhal.ca
writer @thewalrus.ca
adjunct prof @ubcjournalism.bsky.social
journalist, nêhiyaw, mom, roller skater
she/her ✌️michellecyca.com
Nathan @nuclearnathan.bsky.social LFC fan, British expat 🇬🇧 ☢️Radiation Protection Specialist working in Canada 🇨🇦 .
ElieNYC @elienyc.bsky.social Justice Correspondent for The Nation Magazine. Author of Allow Me to Retort and Bad Law.
Class: PLD. Alignment: Neutral Good
Str:12 Dex:8 Con:15 Int:13 Wis:10 Char:14 Author: Allow Me To Retort
Kevin 🚀 @astro-kevin.com Spacecraft operator, democracy & bureaucracy enjoyer
Previously at NASA, Stanford, UT Austin
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
Angus Johnston @angus.bsky.social CUNY prof. Historian of, and advocate for, student organizing. @studentactivism from Twitter.
Mark Joseph Stern @mjsdc.bsky.social Senior writer at Slate covering courts and the law. Co-host of the Amicus podcast. Dad.
Will Oremus @willoremus.com Covering online speech, the information economy and AI weirdness at @theatlantic.com. Shitposting about Bluesky on Bluesky.
Signal: willoremus.24
Amy Rae Hill @amyraehill.bsky.social Ceramic painter bringing dramatic galactic moments to your dinner table. PNW. (she/her)
linktr.ee/amyraehill
Good Trailcams @goodtrailcams.bsky.social trailcams
Oliver Meier @olivermeier.bsky.social Head of Programme on Nuclear and Multilateral Disarmament
at the European Leadership Network @theeln.bsky.social, based in Berlin.
WMD elimination through arms control, disarmament, nonproliferation.
Personal views only.
Defenestration @madwonk.bsky.social DC-based technical analyst, I study that which should never be used. All opinions my own, but you probably shouldn't trust me anyways.
Jeff Berardelli @weatherprof.bsky.social Same @WeatherProf as Twitter. Posting about climate and weather. Chief Meteorologist and Climate Specialist WFLA NBC Tampa 
nilay patel @reckless.bsky.social Editor-in-chief of The Verge, host of Decoder, cohost of The Vergecast. I am in love with spectacle.
Tim Smith @chemsmith.bsky.social Chemist making/purifying stable-isotope compounds at MilliporeSigma. Dad, husband, slow endurance athlete. I like being with my wife and daughter, working out, traveling, hiking, broadway shows, rock n roll, tolerant joyful smart people.
Kevin Kretsch (DrKev) @kevinkretsch.com Professional Guitar Nerd, ex-Physicist, Long-Covid Disabled. He/Him. Call me Kev, never Kevin. Black Lives STILL Matter. GO BILLS!
Ireland/US/France
“In a racist society it is not enough to be non-racist, we must be anti-racist.” – Angela Davis
Paul Musgrave @professormusgrave.bsky.social Professor of political science. Willing expat becoming an unwilling emigre. Essentially millennial, analytically millenarian. https://musgrave.substack.com
Long_Painter @longpainter.bsky.social Energetic & colorful landscape paintings for those building a contemporary collection capturing all the best feelings of travel.
Purchase originals here: Chrislongpainter.com
Shipwreck @shipwreck75.bsky.social 30 years experience as Intel/NATO/OSINT Analyst. Retired US Navy Intelligence Analyst.
Current corporate Intelligence Analyst at Fortune 50 company with a global footprint.
Passionate about OSINT. Post things related to my work or that interest me.
Dr Space Junk (Alice Gorman) @drspacejunk.bsky.social Space archaeologist | Global Expert Group for Sustainable Lunar Activity | Asteroid 551014 Gorman | Dr Space Junk vs the Universe. https://mitpress.mit.edu/9780262539654/dr-space-junk-vs-the-universe/ | Blog https://zoharesque.blogspot.com/
James @gravitysra1nbow.bsky.social Uphold Thucydidian-Clausewitzian-Hegelian-Fukuyamist thought.
https://othermeans.substack.com/
OSINTtechnical @osinttechnical.bsky.social PAI enjoyer, OSINT guy @truth.bsky.social , my views/freezing cold takes are my own. Standard spiel about not endorsing retweets, likes, and comments.
"Online Rent-a-Sage" Bret Devereaux @bretdevereaux.bsky.social Ancient & military historian specializing in the Roman economy and military. PhD from UNC History. More impressive credential is that I have beaten both Dark Souls and Elden Ring.
Blogs at acoup.blog
Christopher Miller @christopherjm.ft.com Chief Ukraine correspondent for the Financial Times. 16 years living and reporting in Ukraine. https://www.ft.com/christopher-miller
Author of the book, THE WAR CAME TO US, published by Bloomsbury: https://www.amazon.com/dp/139940685X
Jane Lytvynenko @janelytv.bsky.social Reporting on tech and conflict for NBC News.
Previously WSJ, Harvard Shorenstein Center, BuzzFeed News.
Email: jane.lytvynenko@nbcuni.com
Signal: janelytv.74
Currently based in New York.
War Mapper @warmapper.org Mapping conflicts
If you would like to support me: https://buymeacoffee.com/warmapper
Dr. Raymond Kuo | 郭泓均 @kuorum.bsky.social Expert on international order and Asian security. VP of Research, Chicago Council on Global Affairs 🇹🇼🇺🇸
Website: https://www.raymondkuo.com/
Mick Ryan @warinthefuture.bsky.social Strategist, Leader & Author | Retd Army Major General | Senior Fellow in Military Studies @LowyInstitute | @CSIS | Modern & Future war studies | Futura Doctrina substack | #BannedInRussia
Tatarigami @tatarigami.bsky.social Former UA officer
Founder of the Frontelligence Insight: https://frontelligence.substack.com
To support my work: http://buymeacoffee.com/frontelligence
Sebastian Bae @sebastianbae.bsky.social Senior Game Designer at the Center for Naval Analyses (CNA). Adjunct Professor at Georgetown. Former US Marine. Opinions own.
B. A. Friedman @bafriedman.bsky.social University of Reading (UK) PhD student studying naval strategy and amphibious warfare. Author of books On Tactics and On Operations. Occasional blogger: https://bafriedman.substack.com/
Samir @obretix.bsky.social geospatial IT – OSINT/IMINT
@kylejglen.bsky.social @kylejglen.bsky.social 
Dara Massicot @massdara.bsky.social Senior Fellow, Carnegie Endowment for International Peace, Russia and Eurasia Program. I cover military issues in Russia and Eurasia. 
Zach @thrustwr.bsky.social Former NavalNews & USNINews writer, Track Fuser, R-1/P-1 Budget Reader.
For defense-related stuff
Site: https://defensearchives.com/news