Angela Collier @acollierastro.bsky.social Theoretical Physicist.
(She/her/hers)
From Eastern KY.
David J. Bier @davidjbier.bsky.social Cato Institute, Director of Immigration Studies, Cato's Selz Foundation Chair in Immigration Policy, BEER, not buyer. Cato, not CATO
David Rankin @asteroiddave.bsky.social Comet & Asteroid Hunter, Geology & Paleontology Buff, Photographer, Birder, Storm Chaser, Flood Guru, Atheist.
Prof. Josep M. Trigo-Rodríguez @joseptrigo.bsky.social Astrophysicist and science writer. My ongoing research lines include: Meteoritics, primordial planetary system materials, their physico-chemical properties, transport of volatiles to planets, planetary atmospheres and astrobiology. Saganist
astrafoxen @astrafoxen.bsky.social 21 - any pronouns
Astrophysics undergrad student in California (grad '27), aspiring planetary scientist. I do astronomy research on asteroids, comets and TNOs!
pfp by me
banner by Ian Regan
Evergreen Intel @vcdgf555.bsky.social OSINT, geolocations, air/sea data. Snarky AvGeek.
Cites: NYT, Мілітарний, Newsweek, The Aviationist, TWZ, A&SF Mag
"Sharp-eyed aviation buff & flight tracker" ~ Brian Williams
https://buymeacoffee.com/vcdgf555
She/her
Chris Biggers @csbiggers.bsky.social Words at Janes, GEOINT consultant.
Senator Elissa Slotkin @slotkin.senate.gov U.S. Senator from the great state of Michigan. Working to boost the middle class, protect our country, our kids and our democracy. Former national security official.
Jérémy Cartier @jeremycartier.bsky.social Pingouins, histoire et bombes atomiques
Marc Elias @marcelias.bsky.social Founder @democracydocket.com. Chair of Elias Law Group. My dog's name is Blue.
H I Sutton @covertshores.bsky.social Independent Defense Analysis, Unconventional Naval Warfare, author, submarines, #OSINT, illustrations. Mostly typos
http://www.hisutton.com/
Ryan May @dopplershift.bsky.social I'm a weather-focused software engineer and career Pythonista. Opinions are my own, yada yada.
@vastspacestation.bsky.social @vastspacestation.bsky.social 
Yen-han Chen 陳彥翰 🇹🇼🇺🇸🇺🇦 @chen-yenhan.bsky.social Georgetown University Security Studies Program. Taiwan's defense and military history, U.S.-Taiwan relations. Detroit Tigers watcher.
中文/上海话/ENG/FR
AMSAT-DL @amsat-dl.org AMSAT-Deutschland e.V. https://amsat-dl.org
charitable non-profit organisation, designing, building and operating hamradio #AMSAT satellites since 1973. Home of the Phase3 satellites and first Phase4A geostationary #QO100 S/X transponder
Astronomy Acres @astronomyacres.com Astronomy Acres Remote Observatories (AARO) is a remote hosting observatory for astrophotographers nestled under Bortle 1 skies in rural SW New Mexico.
To learn how we can host your gear - visit https://astronomyacres.com
Virtual Bayonet @virtualbayonet.bsky.social Former US Marine, Navalist (in a positive sense), free world military enthusiast, history enthusiast. I occasionally attend naval conferences and comment on US military budget items
Matthew Downhour @matthewdownhour.bsky.social Liberal, Montanan. Subscribe to Paine-Wollstonecraft-Douglass-George thought, Bolivar-Juarez-Nkomo-Zelenskyy praxis 
Emma Smith @ameliairheart.bsky.social 🏳️⚧️ she/her
OS @osactual.bsky.social CHamoru 🇬🇺, Army Officer, 11th Airborne Lynchpin enjoyer, USAFA ‘23, NatSec and Climate Nerd, Thoughts my own.
Hein Goemans @heingoemans.bsky.social Galactic Effectuator (obvious Jack Vance aficionado); Professor of Political Science at the University of Rochester. Interests: war and war termination, territorial disputes, why do leaders and why do individuals fight?
Jacob Hausdorf @jhausdorf.bsky.social Emergency management professional interested in defense, military, and Seattle Sports. Formerly US Army Infantry.
My substack Learning Through Failure: https://jhausdorf.substack.com/
exactly like other girls @basedranchdressing.bsky.social addicted to increasing my digital footprint. political econ, security, IR, shitposting. originally midwestern, now that DC bitch you think you hate. she/her, a shade of brown.
Kelton Halbert @stormscale.io Personal account, views my own. Techniques Development Meteorologist for the Storm Prediction Center.
See more of my photography:
https://www.stormscale.io/photos
My blog:
https://www.stormscale.io
Nick Kodama @nickkodama.bsky.social PhD candidate at Georgetown | Researching nukes, IR, Japan, East Asia | Also posting photos of my cat and food.
Pete Buttigieg @petebuttigieg.bsky.social Husband, dad, veteran, writer, and proud Midwesterner. 19th US Secretary of Transportation and former Mayor of South Bend.
Peck @ohheckitspeck.bsky.social Ever felt grass? Life-changing shit tbh
John Bird @johnbird001.bsky.social Ph.D. atmospheric scientist🌎, nuclear engineer☢, 📰 #antarctica
South Pole Station 🐧 http://amzn.to/2klpv3b 🐧
s2a systems @s2a-systems.bsky.social Developing and operating systems for Space Situational Awareness.
NOAA Communications @noaacomms.noaa.gov News on weather, climate, oceans, fish, satellites, research & more from NOAA Communications. Official NOAA account.
Marianne Denton @mariannedenton.bsky.social past life of limnology & aquatic ecology |
living a technicolor life in a B&W world |
naturalist • explorer • observer |
“pathologically optimistic” |
“irredeemable nerd” |
always a scientist |
James Spann @spann.bsky.social AMS Certified Meteorologist.
Alerts from NWS Huntsville AL (UNOFFICIAL) @hun.nws-bot.us Unofficial bot sharing alerts from NWS Huntsville AL.
This account is not monitored. Contact @wandrme.paxex.aero if needed.
U.S. Consumer Product Safety Commission @cpsc.gov Your U.S. Consumer Product Safety Commission. Product safety info, data, and recalls. Standing for safety since 1972. Official account of the USCPSC. HQ: Bethesda, MD.
Subscribe for recall emails on CPSC.gov.
Report unsafe products on SaferProducts.gov
Chung-Tzu @chung-tzu.bsky.social 
Nujoud Fahoum Merancy @nujoud.bsky.social NASA Deputy Associate Administrator, Exploration Strategy & Architecture. #DucatiScrambler riding, mom of 2, Palestinian-American... spaceships are the easy part.
Jim Way @jimway.bsky.social Executive Director at American Astronautical Society. Passionate about space, aviation, and everything in between.
Eric Berger @sciguyspace.bsky.social Senior Space Editor, Ars Technica. Likes rockets. 
Tory Bruno @torybruno.bsky.social President and CEO United Launch Alliance @ULAlaunch, ...Rocket Scientist, Horseman, proud @calpoly alum
Joe Morrison @joemorrison.bsky.social “Controversial industry figure” - Grid News. VP of Commercial Experience at Umbra Space. 🛰 | satellite data for mapping 🗺, monitoring 📈, and 'mergencies 🚨
David Blanchflower BSc @davidbflower.bsky.social Astronomer and Astrophotographer. Pictures of space appearing in posts, magazines and on the telly. 
Rafael Mentges @mentges.bsky.social Space Economist. Interested in European Integration, industrial policy, innovation, strategic sovereignty, and of course things like launchers, SatCom, EO ...
I have another profile focused more on my old interests: Macro, monetary policy and banking.
Center for International Maritime Security (CIMSEC) @cimsec.bsky.social Non-partisan think tank building a global community of practitioners and academics in maritime security.
CIMSEC is a non-profit, non-partisan think tank.
https://cimsec.org/
Bill McKay @mckay4senate.bsky.social “What do we do now?”
Radio&Nukes @radioandnukes.com Analysis is the art of making sense out of fragments.
Tarik @ohitstarik.bsky.social t
Heatloss @heatloss.bsky.social Cold War Air Power and other related topics | Heatloss on most other platforms | Cascadia Resident
@heatloss1986 on the other site
https://linktr.ee/heatlos
Andrew Jones @andrewjonesspace.bsky.social Freelance journalist mainly tracking Chinese space activities. Correspondent at SpaceNews, also bylines at Spacedotcom, IEEE Spectrum and more.
Giled Pallaeon @giledpallaeon.bsky.social Military & International Affairs nerd. Defense professional. Mostly naval subjects, but all aspects of defense and natsec welcome. Oh, & plastic spaceships, that too. All opinions on all subjects my own #WeAreNAFO
Gen. 'Buck' Turgidson @genbuckturgids.bsky.social 
Minseon Ku @minseonku.bsky.social International relations-diplomacy-international security.
🐿️ watcher striving to be a whisperer
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
Scott Tilley @coastal8049.bsky.social Guests do not get to rearrange the furniture and then act shocked when shown the door.
Charlie Thomas @cthomasjamh.bsky.social Professor, African Military Historian, Co-Editor of the Journal of African Military History. Opinions expressed are solely mine. My book, Ujamaa’s Army, is available now!! https://www.ohioswallow.com/9780821425596/ujamaas-army
Matej Rafael Risko @matejrisko.bsky.social Researcher, focus on Nukes | Missiles | Deterrence | Strategy & Planning | War & International Security | Air Power | Wargames | Strictly personal views, Usual Cavetas
Igitur qui desiderat pacem praeparet bellum
A Yankee in Artoria’s Court @linkplumeria.bsky.social BSME, Disclaimed Scholar of Neofreudian International Relations, Slave to Nasu
@l5resident.bsky.social @l5resident.bsky.social 
The Lunar War @thelunarwar.bsky.social A speculative scifi worldbuilding project exploring the ships, technologies and stories of the first large-scale space conflict.
Brainchild of L5Resident
Rocky Flats Chimney Sweep 🇺🇸 @midlifesuezcrisis.bsky.social Materials science & nukes. Deterrence & what comes after.
Patriot, liberal firebrand, Catholic, last of the China hawks, Nitzean superman. Victory is possible.
Views my own / posts off the clock
www.liberalcurrents.com/nuclear-arms-and-the-new-free-world/
Fabian Hoffmann, PhD @frhoffmann.bsky.social Doctoral Research Fellow at the Oslo Nuclear Project, University of Oslo. Defense policy, missile technology, and nuclear strategy.
Weekly analysis of missile tech, nuclear strategy, and European deterrence 👇
https://missilematters.substack.com/subscribe
Status-6 (Military & Conflict News) @archer83able.bsky.social Providing in-depth news coverage about the armed conflicts and crises all around the globe (focus on 🇺🇦 Ukraine).
📨 archer83able@gmail.com
YT: www.youtube.com/@archer83able
☕️ KoFi: https://t.co/zRfCNxRSdu
The Astronomer's Telegram @astronomerstel.bsky.social For new astronomical observations, by the professional research community. http://patreon.com/astronomerstel
Whatismoo @whatismoo.bsky.social Transatlantic Doctoral Student covering the Cold War to the present.
Logo adapted from that of the Soviet Army Studies Office
AirPower (MIL-STD) @mil-std.bsky.social Old radar types never die; they just phased array!
Aerospace, Defense and NatSec related content
#OpenSource. No affiliations to govt., media or industry
Doha @doha104p3.bsky.social Mil-Av, Maritime, Missile, Space, Defense, and some politics related posts | F-35 appreciator | Agile Combat Employment Supremacist | (Not very active here)
Strategic Trends @strategictrends.bsky.social US foreign policy and national security interests in the Indo-Pacific | Maritime minded | | Learning every day | Views my own. | Always humble
Tony Stark @tonystark.bsky.social Author of the novel, EX SUPRA. Buy it here: https://www.amazon.com/Ex-Supra-Tony-Stark/dp/B0B6L9TD6J/ref=nodl_?dplnkId=f9e567ed-9cbb-4a51-9ebe-37646193cff5
Sequel: Duality, coming soon.
Substack: Breaking Beijing.
Podcast: WarTalk (ChinaTalk)
Havoc @havocsix.bsky.social Army Engineer Vet & militant sarcasm enthusiast | Defense, foreign policy, & absurdism | Host Trip Wired: http://linktr.ee/tripwired1 | Historia magistra vitae | Opinions = mine alone |
brasidas @brasidas.bsky.social Not Laconic
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/
Tatarigami @tatarigami.bsky.social Former UA officer
Founder of the Frontelligence Insight: https://frontelligence.substack.com
To support my work: http://buymeacoffee.com/frontelligence
Michael Kofman @michaelkofman.bsky.social Senior Fellow, Carnegie Endowment. Defense analysis with a focus on the Russian and Ukrainian militaries.
Lawrence Freedman @ldfreedman.bsky.social Emeritus Professor of War Studies King's College London. Latest Book Strategists and Strategy: collected essays, 2014-2024. Substack Comment is Freed https://samf.substack.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
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/
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.
Gerry Doyle @mgerrydoyle.bsky.social Bloomberg News Global Defense Editor. Novelist, aviation geek, bartender, dad. Ex-NYT, Reuters. Grew up in Midwest, moved to Mideast. Views my own. Wrote a fun book about Chinese missiles: https://tinyurl.com/2p94pay6
Ad astra per aspera
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
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.
Solomon Kica @kica22.bsky.social PhD student, Earth and Marine Sciences.
Global Hydrology Lab at University of North Carolina at Chapel Hill #EarthObservation
Zach Ota @zachota.bsky.social Personal Perspectives • Beholding the Pacific • Krulak Center • YCAPS • Allies & Partners • Amphibious Defense • Aloha
Trent256🇺🇦🇺🇸 @tnert255.bsky.social 
"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
Paweł Wójcik 🦋🇵🇱🇪🇺 @saladinaldronni.bsky.social Researcher.
Polish voice on terror, conflicts, crime networks, Islamic State, al-Qaeda.
Now, also following Islamic State's plans in Africa. Politics in the Sahel.
Writing for hire. DM.
@saladinaldronni on X/Twitter
https://ko-fi.com/saladinaldronni
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
James @gravitysra1nbow.bsky.social Uphold Thucydidian-Clausewitzian-Hegelian-Fukuyamist thought.
https://othermeans.substack.com/- A ama @amato.bsky.social Remote sensing, Python, Neovim, Arch Linux etc. I like free as freedom, not gratis.
John Ridge 🇺🇸🇺🇦🇹🇼 @johnridge.bsky.social Physics | Weapons Systems | National Security | Foreign Policy | Arms Exports | Security Assistance | Tochnyi Contributor | Donate to Liberty Ukraine Foundation