Gerald C Brown @geraldcbrown.bsky.social China, PLA, Taiwan, defense, & nukes | IAF @CFR.org | Liberal natsec-type | Opinions mine
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.
Opinions my own / posts off the clock
Rekindling hearts in a world that grows chill.
Aaron Rupar @atrupar.com Independent journalist, SnapStream brand ambassador, and publisher of the Public Notice newsletter https://www.publicnotice.co/subscribe
@cormacrelf.bsky.social @cormacrelf.bsky.social 
Molly Reynolds @mollyereynolds.bsky.social Senior Fellow, @brookings.edu. Still not the Senate Parliamentarian.
Security Dilemmas @securitydilemmas.bsky.social I'm Richard Purcell, Louisiana native, proud UNC alum, former Capitol Hill staffer, SAIS grad, and (hopefully) keen observer of foreign policy and national security. Nukes are my specialty.
Nick Kodama @nickkodama.bsky.social PhD candidate at Georgetown | Researching nukes, IR, Japan, East Asia | Also posting photos of my cat and food.
Das Doak @dasdoak.bsky.social Gentleman adventurer, mostly decent bastard, only slightly pessimistic optimist. I ride bikes, tinker, program, and read way too much.
White, cis, straight, US male if you need the context. It's a fucked demographic; wasn't my choice to be born into it.
Nell Greenfieldboyce @ngreenfieldboyce.bsky.social I’m a science journalist who is drawn to the transient and strange.
lbSterling @poundsterling.bsky.social Software engineer, transit enjoyer, sometimes I climb rocks and get in sword fights. All opinions are my own.
ae @aelkus.bsky.social "A complex decision is like a great river, drawing from its many tributaries the innumerable premises of which it is constituted." - HA Simon
https://adamelkus.com/ + also @ aelkus on twitter
all opinions my own but also your cat's
Al Mauroni @progmil.bsky.social NatSec analyst, WMD and nukes, sci-fi enthusiast, gamer 
Mike Yass @mikeyass.bsky.social WW3 has already started it’s just unevenly distributed | Aerospace, AI, and a real-life #polycythemiavera mutant.
Corey Hinderstein @coreyah.bsky.social Talk to me about British quiz shows, podcasts, Mets, Caps, gymnastics, F1 (but not on Netflix), nukes, cozy cooking shows, and decaf melanges. She/Her.
Andrew Gelston @agelston.bsky.social Energy Professional, Storage. Entropy arbitrageur.
Personal Account. Weaponized Curiosity, with vibes
Core Values:
https://youtu.be/-hDPK865N9I&t=57s
&
http://youtu.be/tHPHy2cvDOA&t=34s
&
http://youtu.be/x5rh8NNLHV0&t=28s- S David Schmalz @schmoops.bsky.social writer, journalist, raconteur | @mcweekly alum | joy enthusiast
Outrider Foundation @outrider.org We support multimedia storytelling about nuclear threats and climate change 🌎 Read our newsletter: https://outrider.org/newsletter
Andrew Hickey @andrewhickey.500songs.com That bloke who does that podcast your annoying friend keeps trying to get you to listen to. He/him. Posts every random thought in his head. AuDHD and not many filters. If you're only interested in my podcast you probably don't want to follow.
Steve Trimble @thedewline.bsky.social I’m the Defense Editor at Aviation Week.
Laura Rozen @lkrozen.bsky.social Reporting on foreign policy. Current: https://diplomatic.substack.com Just Security ed board. Al Monitor, Politico, Foreign Policy alum.
Starfire’s Deranged Neocon Foreign Policy Podcast @irhottakes.bsky.social Political science PhD student. Former starfish. World’s third best Bigfoot colonial governance simulation expert. Trans. She/her
Not actually a Teen Titan or neocon.
Djinn & Tonic 🇺🇦 🇨🇦 🇲🇽 🇬🇱 @djinnandtonic.bsky.social Poster of posts. Comparative politics, memes, and the occasional update about my ducks. Bluesky's premier advocate for Bushidoliberalism 🫡 🗡️⛩️
Designs (mostly) inspired by and derived from 19th century political Americana at 👁 wideawakes.army 👁
Eliot Higgins @eliothiggins.bsky.social Founder and creative director of Bellingcat and director of Bellingcat Productions BV. Author of We Are Bellingcat.
James Igoe Walsh @jamesigoewalsh.com Professor of Political Science, Data Science, & Public Policy, University of North Carolina at Charlotte. Formerly US National Science Foundation.
https://www.jamesigoewalsh.com
Chris Biggers @csbiggers.bsky.social Words at Janes, GEOINT consultant.
Carl Robichaud @carlrobi.bsky.social Program Officer on nuclear policy at Longview Philanthropy (http://longview.org). Opinions are my own.
Andrew Carnegie Foundation @carnegie.org Supporting ladders of opportunity and a more peaceful world.
Established by Andrew Carnegie in 1911. Formerly Carnegie Corporation of New York.
🔗 Learn more at carnegie.org
📩 Subscribe at carnegie.org/stay-informed/
Joe Cirincione @joecirin.bsky.social I don’t post often, so I try to make every one count. I’ve worked for 45 years in government, think tanks, Georgetown U. and philanthropy. I write, lecture and do media interviews. On Substack at: joecirincione.substack.com
Ankit Panda @nktpnd.bsky.social Stanton Senior Fellow, Carnegie Endowment for International Peace; Author of ‘THE NEW NUCLEAR AGE’ (Polity) & ‘KIM JONG UN AND THE BOMB’ (Hurst/Oxford)
Subscribe to my newsletter (Nukesletter): https://panda.substack.com/
Dr. Heather Williams @heatherwilly.bsky.social Director, Project on Nuclear Issues (PONI) and Sr Fellow, Defense and Security Department at CSIS
Associate Fellow, Project on Managing the Atom at Harvard Kennedy School
New Yorker by birth, Bostonian by choice
Pranay Vaddi @pranayrvaddi.bsky.social pers acct. fmr NSC46, State Dept. nukes, nonpro, arms control. Husband + suburban dad. All tweets/rt are my views alone.
https://strategicsimplicity.substack.com/
Fiona Cunningham @fiona-cunningham.bsky.social Assistant Professor of Political Science at the University of Pennsylvania. Author of “Under the Nuclear Shadow” (Princeton, 2025). China, nukes, cyber, space, international security. She/her. Personal website: www.fionascunningham.com
Astropolitics Working Group @astropoliticswg.bsky.social We are the Astropolitics Working Group at the British International Studies Association (BISA). We are a group of mostly Politics/IR scholars focusing on or interested in space politics/security and adjacent fields. Webpage: https://tinyurl.com/yj7z3t3c
Arrigo Triulzi @cynicalsecurity.bsky.social IT Security, cynically aged. Maths. Some nukes. Longing for Symbolics and Connection Machines. Keeper of Ancient Computing Lore. Wassenaar intangible Ⓐ
James Acton @nuclear-jim.bsky.social Co-director of the Nuclear Policy Program at the Carnegie Endowment For International Peace. I spend a lot of time thinking about nuclear weapons, advanced nonnuclear technology, and escalation.
H I Sutton @covertshores.bsky.social Independent Defense Analysis, Unconventional Naval Warfare, author, submarines, #OSINT, illustrations. Mostly typos
http://www.hisutton.com/
Colin Zwirko @colinzwirko.bsky.social Analyst at NK News / NK Pro, investigations and analysis about North Korea and satellite imagery, state media, military, Kim family developments etc.
https://www.nknews.org/content_author/colin-zwirko
David @puca.bsky.social Wolkenjägerblicker
Rob Person @rtperson3.bsky.social Prof. of International Relations at West Point, CFR Member. Specialist on Russian and post-Soviet politics, Eurasian foodie, partisan of tweed. Views & плов recipe my own.
Christoph Koettl @ckoettl.bsky.social Visual Investigations journalist at New York Times, with a weakness for satellite images. Austrian in NYC.
https://www.nytimes.com/by/christoph-koettl
@sydseiler.bsky.social @sydseiler.bsky.social 
@amannes.bsky.social @amannes.bsky.social 
The Slides @theslides.bsky.social Bot posting 4x daily from Sam Biddle's curated collection of US military slides from the Cold War era.
Sam's intro essay: https://www.patreon.com/MaxRead/posts/true-life-for-i-155014876
Slides courtesy @sambiddle.com
Bot by @brian.gawalt.com
Sam G @samthegeek.net Somewhat Coy
Dave Kang @daveckang.bsky.social Going from failure to failure without losing enthusiasm!
(Also: USSF "National B" license, when "A" was as high as it went.)
https://www.daveckang.net/
Karl Friedhoff @kfriedhoff.bsky.social 
Anton Hur @antonhur.com Translator, bilingual author, Korean citizen. TOWARD ETERNITY (HarperVia), <하지 말라고는 안 했잖아요?> (어크로스). Repped by Safae El-Ouahabi at RCW. He/him.
🔗: antonhur.com
Mariana Budjeryn @mbudjeryn.bsky.social Researcher of nuclear, Ukraine, and nuclear Ukraine. Author of Inheriting the Bomb. MIT Center for Nuclear Security Policy, Brookings and RUSI nonresident, NAS CISAC, ACONA.
Steven J. Gibbons @stevenjgibbons.bsky.social Geoscientist (Computational Fluid Dynamics, Seismology, Tsunami++). Norgesvenn, Internationalist, European. Nor/Eng. Works for NGI but views here strictly mine. https://orcid.org/0000-0002-7822-0244
Geoff Brumfiel @gbrumfiel.bsky.social I'm an editor/correspondent for NPR. Mostly smart on the radio. Mostly stupid on everywhere else.
ChatGPT describes me as: "Aerospace sleuth, nuclear nerd and NPR Superfan — with a side of surreal humor."
Signal: gbrumfiel.13
https://geoffbrumfiel.net/
Marco Langbroek @marcolangbroek.bsky.social Lecturer in optical Space Situational Awareness at Delft Technical University, faculty of Aerospace. Spy sats, missiles, meteorites, asteroids. Asteroid (183294). Lapsed Archaeologist (PhD). Rowing. CFS. Opinions my own.
blog: http://sattrackcam.blogspot.c
Emma Smith @ameliairheart.bsky.social 🏳️⚧️ she/her
Alex Wellerstein @wellerstein.bsky.social Nuclear historian. Professor at Stevens Institute of Technology. Visiting researcher at Nuclear Knowledges program, Sciences Po (Paris). Author of THE MOST AWFUL RESPONSIBILITY (2025). Creator of NUKEMAP. Blogging at https://doomsdaymachines.net.
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
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
BeijingPalmer @beijingpalmer.bsky.social Deputy editor at Foreign Policy, China nerd, gaming nerd, reads a lot. Never again a country without consequences.
Kelsey Atherton @atherton.bsky.social War, robots, & bad futures but imagining better. I edit @cipolicy.bsky.social's International Policy Journal, opinions my own. Unitarian Universalist. He/him. Husband to @alymay.bsky.social & father of 2.
Front takes towards enemies.
Gregory Kulacki @gkucs.bsky.social Director, East Asia, Global Security Program, Union of Concerned Scientists. Non-Resident Fellow, Research Center for the Abolition of Nuclear Weapons at Nagasaki University. Cross-cultural sojourner.
Michelle Ye Hee Lee @myhlee.bsky.social Covering Asia at The Washington Post. Mom to two needy cats & a rambunctious golden retriever. michelle.lee@washpost.com
sarah jeong @sarahjeong.bsky.social journalist and lawyer based in Portland, OR.
Dmitri Alperovitch @dmitri.silverado.org Geopolitics, Russia, China, Cyber
Chairman @silverado.org
Author of WorldOnTheBrink.com
Host GeopoliticsDecanted.com podcast
Founder Alperovitch Institute for Cybersecurity Studies at Johns Hopkins SAIS
Co-Founder CrowdStrike
@DAlperovitch elsewhere
Dmitry Stefanovich @dvsteff.bsky.social Nukes, missiles, military, space, tech, music, cats, #STRATDELA and #HYPERHYPE 
Fred Kaplan @fredmkaplan.bsky.social Slate's War Stories columnist; author of The Bomb, Dark Territory, The Insurgents, 1959, Daydream Believers, The Wizards of Armageddon, and--most recently--A Capital Calamity (a novel); also jazz critic for Tracking Angle.
SwiftOnSecurity @swiftonsecurity.com computer security person. former helpdesk
Sky Sentry @skysentry.bsky.social Moderation Lists
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.
Bleddyn Bowen @bleddb.bsky.social Associate Professor of Astropolitics | Space warfare | Own views
Books: Original Sin http://bit.ly/3JYbcIe ; War in Space http://bit.ly/34Stplv 🏴🏳️🌈 🚀🛰
Web: https://tinyurl.com/p9pt8n9n
“He doesn’t see the stars - just the vast dark spaces in between.”
Oliver Morton, Eater of Sun @eaterofsun.bsky.social Author, Editor @ The Economist, Chair @ The Degrees Initiative. Climate change, planetarity, critical zones, tv, burdens of life, etc. Reposts are not endorsements
Andrew Facini @andrewfacini.com Senior Fellow, @councilonstrategicrisks.org working on nuclear weapons policy. Teaching and such at Harvard Extension. Views my own.
Nuke policy starter pack! https://go.bsky.app/8jiQV43
Alex Newhouse @alexbnewhouse.bsky.social PhD candidate in Political Science at CU Boulder. Biker, climber, runner, skier, homebrewer, writer, coder.
email: alex [dot] newhouse [at] colorado [dot] edu
Theo Milonopoulos @theomilo.bsky.social Assistant professoring. PhD @Columbia. Prev. @ClementsCenter, @perryworldhouse. IR, civ-mil, tech. Star Wars, Lego, newspapers, coffee, dogs. He/him. Personal Account. Views mine.
James Pearson @pearswick.press Visual Investigations Journalist at @Reuters.com, via Hanoi, Seoul, Pyongyang and cyberspace. Now in London.
“A bum who wrote an ignominious jumble of stories”
- North Korea ★ ★ ☆ ☆ ☆
📞Signal ID: pearswick.01
💻: pearswick.press
Shashank Joshi @shashj.bsky.social Incoming Washington bureau chief at The Economist. Previously defence editor for eight years.
Visiting Fellow at Department of War Studies, KCL. For speaking engagements: https://chartwellspeakers.com/speaker/shashank-joshi
Logan Williams @obtusatum.bsky.social Mountains and websites; maps and birds; context collapse. Projects: https://subject.space/. Work: Data, research and technology for investigations @bellingcat.com. Personal account, posts/opinions are my own. New York via Amsterdam and Oregon.
Dylan Spaulding @dkspaulding.bsky.social Senior Scientist, Union of Concerned Scientists, Global Security Program. Views are my own.
Blog: blog.ucsusa.org/author/dylan-spaulding/
Samir @obretix.bsky.social geospatial IT – OSINT/IMINT
Prof Claire Corkhill @clairecorkhill.bsky.social Professor of Mineralogy at University of Bristol, HMG Advisor. Aspirational TV presenter. Step-parent. Trail runner / squelcher. Specialises in geological disposal of radioactive waste.
Dr. Taylor Loy @tayloraloy.bsky.social Virginia Tech Postdoc (STS), nuclear energy/nonpro. Former SRO instructor nuke worker. he/him.
https://tritiummatters.org
Diss:
https://hdl.handle.net/10919/120638
Day One:
https://fas.org/publication/fusion-energy-leadership-tritium-capacity/
Thomas Dickerson @elfprince13.mumak.app Geospatial AI @nbcuniversal.com, Brown CS PhD & SMCVT Math/Physics/CS alum, admin @cemetech.net, AFOL, SFF nerd & open-theist
Foraging & homebrew
Bluesky open-source contributor
Decentralizing systems (human & digital)
Opinions are my own
📍Vermont
Dr. Lizzly Atoms @iamplatypus.bsky.social Particle physicist ➡️ nuke physicist. R&D, some policy thoughts. Formerly neutrinos, now neutrons. Bear, 50s/60s camp sci-fi, & western hat aficionado. Lousy 𝄢ist. Opinions mine, especially the bad ones. Follow/❤️/🔃 ≠ E, &c. AFOL. Trust the process. ᕕʕ•ᴥʔ୨⚛
Zachary Keck @zacharykeck.bsky.social Nuclear Weapons and Indo-Pacific. Former: DoD, Congress, Belfer Center, The Diplomat, others. Views mine and subject to change.
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/- W woolaf @woolaf.bsky.social Nuclear nerd and lover of baseball. Owner of the cutest dog in the world.
Steven Aoki @seminonpro.bsky.social Not a disk jockey. Retired from US State Dept & Dept of Energy after working nuclear nonproliferation and counterterrorism as a senior civil servant. Forgot most of what I learned getting a physics PhD but hopefully retain a scientist’s respect for facts.
Aaron Stein @aaronstein1.bsky.social President/CEO @fpri.bsky.social; Podcast w/ blogfather @armscontrolwonk.bsky.social; Recent Substacker; Author: US War Against ISIS. Views are all my own
Elena Chernenko @elenachernenko.bsky.social Kommersant newspaper, special correspondent (based in Moscow). Personal area of interest: arms control, non-proliferation, cyber diplomacy. Views are my own. 
Olya Oliker aka Dr. Olga Oliker (she/her) @olyaoliker.bsky.social Director, European Security @crisisgroup.org / Feminist / Migrant / ❤️ punk rock (but not only) / Opinions own / Endorsements clearly marked / podcast: https://www.crisisgroup.org/pod/europe/war-peace
Matthew Harries @matthewharries.bsky.social Research director at the Labour Movement for Europe. Previously director of nuclear policy at RUSI, managing editor of Survival/senior fellow at IISS, and specialist for the Foreign Affairs Committee.
Jana Puglierin @jpuglierin.bsky.social Foreign policy nerd, especially interested in European security & transatlantic relations. Head of @ecfrberlin.bsky.social. FirstGen. Author of „Wer verteidigt Europa“ published with Rowohlt in January 2026. DB Ruhebereich Ultra and deltidsvärmlänning.
Minna Ålander 🌻 @alanderminna.bsky.social Analyst @sceeus-ui.bsky.social at @uisweden.bsky.social | Associate Fellow @chathamhouse.org | @cepa.org Fellow | Council Member @ecfr.eu 📸 Stas Kartashov
🎙️ co-host Mildly Alarmed
✍️ Northern Flank Notes: https://open.substack.com/pub/minnalander
Constanze Stelzenmüller @constelz.bsky.social Director CUSE, Germany explainer etc. @ Brookings; FT contributing columnist; Wizards Fan (I know). When the going gets tough, the tough go blonde. Pic: Marc Darchinger. Views my own, people.
Bellingcat @bellingcat.com Bellingcat is a global collective uncovering facts to hold power to account. Our work is independent. Our methods are public. Our community is global.
Want to support our charity? bellingcat.com/donate
Dr. Jacquelyn Schneider @jackieschneider.bsky.social Hoover Fellow, Director Wargaming and Crisis Simulation Initiative, Stanford University. Research on international security, emerging technology, wargames. Views are my own. 
Mike Black @mikeblack114.bsky.social Are you shittin me?!?!! No, but you'll print that and I'll probably be investigated
Posts mine, but if you see something you think you can use to get me in trouble I did it on my own time and my own device, so good luck
Yozh @lemmon.bsky.social 
Graham J. @grahamj.bsky.social Defense, space, intel | trains, cities, pugs, warhammer | learning 廣東話 | the good Graham/tall one
Old site: @grahamwjenkins, @lowheadways
about.me/grahamjenkins
LA via DC via Boston
Kori Schake @kschake.bsky.social Leads AEI’s foreign and defense team, author of The State and the Soldier, contributing writer at The Atlantic. 2025-2026 Kissinger Chair at the Library of Congress. Californian. https://www.aei.org/profile/kori-schake/
Mike Eckel @mikeeckel.bsky.social Opponent of Quiet Desperation. Contains Multitudes. In Search Of Meanness Or Sublimity. Former Moscow Correspondent. Vladivostok Fanboy. Chaotic Good. @RFERL
EM Simpson @emsetc.bsky.social I am not a committee. Defense, pop-culture, Jayhawk propaganda. All opinions my own.
Co-host of Sirens: A Bombshell Production https://podcasts.apple.com/us/podcast/sirens-a-bombshell-production/id1195698408