Bruce Dorsey @profbrucedorsey.bsky.social Historian, writer. Professor of History, Swarthmore College. Most recent: MURDER IN A MILL TOWN (Oxford UP). Rep'd by Mullane Literary Associates.
Sara Pritchard @sarabpritchard.bsky.social 🌌💡🌃🛰 #TransformingNight
Out Sept 22!
https://uwapress.uw.edu/book/9780295755205/transforming-night/
#SkyStorian #STS #EnvHist #HistTech #envirotech #HistSci
#LightPollution #ArtificialLight #ALAN #Night #Darkness #LightJustice #CriticalDarkSkyStudies
VMO
Kingston Reif @kingstonareif.bsky.social Senior International/Defense researcher at the RAND Corporation. Former DASD for Threat Reduction and Arms Control + Arms Control Association. Wisconsin sports fanatic. Personal account.
Abe Newman @abenewman.bsky.social W/Henry Farrell, Underground Empire: How America Weaponized the World Economy (Holt 2023/Penguin); Georgetown; This is a private account.
Lawfare @lawfaremedia.org Straight-shooting information and analysis at the intersection of national security, law, and policy.
Support Lawfare at https://www.lawfaremedia.org/support
Jonathan Caverley @jcaverley.bsky.social Political scientist who is a visiting senior fellow at IISS and professor (on leave) at the US Naval War College. Sure it works in practice, but how does it work in theory? Opinions are mine.
Kris Inwood @kris-inwood.bsky.social Economic historian w broad interests including population health, First Nations, mobility, inequality & lives of the incarcerated. Directing https://thecanadianpeoples.com & editing Asia-Pacific EcHR https://onlinelibrary.wiley.com/journal/2832157x
🇨🇦🇦🇺🇳🇿🏴
Mike Goldfien @mikegoldfien.bsky.social Political science & IR | Fomerly Yale, Stanford, Grinnell College | Views my own | mgoldfien.com
Amanda Pearson @pearson-edits.bsky.social Deputy Editor, @intsecurity.bsky.social, based at
@belfercenter.bsky.social | International relations, comparative politics, history | formerly @weatherheadcenter.bsky.social | X: @Pearson_ink
International Security @intsecurity.bsky.social International Security is America's leading peer-reviewed journal of security affairs. It provides sophisticated analyses of contemporary, theoretical, and historical security issues. International Security is edited at @belfercenter.bsky.social.
David Fedman @dfeds.bsky.social historian of japan/korea/the environment | words: davidfedman.org | digital archive: JapanAirRaids.org | film: https://papercityfilm.com/
Marika Landau-Wells @mlandauwells.bsky.social Asst. Professor of Political Science at UC Berkeley. Here for dogs, science, and inspiration. But mostly dogs
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
Sam Lair @slair.bsky.social Fellow at FPRI | MIIS NPTS '24 | RTs/views my own etc. Also @sam_lair on Twitter
Bulletin of the Atomic Scientists @thebulletin.org The best thinking on existential threats since 1945. Nuclear risk, climate change, and disruptive technologies. We set the #DoomsdayClock. thebulletin.org
Solar Baltimore @baltimore.solar.v.cx A bot with daily updates about sunrise and sunset in Baltimore, Maryland.
https://v.cx/2024/02/solar-bot
Mindy Haas @mindyhaas.bsky.social Assistant Professor at SPIA, Univ. of Pitt. Studying covert action, US FP, int'l security & int'l law. PhD from Princeton Politics, JD from Penn Law. Mom to Amelia & kitty cat crew. She/her.
SpaceNews @spacenewsinc.bsky.social Established in 1989, SpaceNews is the most trusted and comprehensive source of news and analysis of the companies, agencies, technologies and trends shaping the global space industry.
petercgrace.bsky.social @petercgrace.bsky.social 
Canada Declassified @canadadeclassified.bsky.social Canada Declassified shares government documents released under the Canadian Access to Information Act-WWII, the Cold War & the Global War on Terror. By Prof. Tim Sayle. Substack➡️ canadadeclassified.ca
Full archive➡️ https://declassified.library.utoronto.ca/
Ryan Dahn @ryandahn.com Editor at @physicstoday.aip.org. Historian studying Nazi science by night. Passionate about Philadelphia urbanism, sports, and politics. All opinions my own.
https://ryandahn.com
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
Sara Goudarzi @saragoud.bsky.social Writer: nytimes, NatGeo, sciam, etc., Disruptive tech editor @bulletinatomic. Author of THE ALMOND IN THE APRICOT | saragoudarzi.com
Signal: saragoudarzi.19
Joey Roulette @joroulette.bsky.social Reuters' space reporter
Brian Kerg @briankerg.bsky.social Atlantic Council Fellow | Military Writers Guild Board Member | Marine Corps Strategist Fellow at Notre Dame | CIMSEC Managing Editor | Personal Account
Ellen Nakashima @ellenwapo.bsky.social Intelligence and national security reporter at The Washington Post. Reach me securely on Signal at Ellen.626.
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
Renata Keller @renatakeller.bsky.social https://www.renata-keller.com/
Assoc Prof of Latin American History, UNR. Author of *The Fate of the Americas: The Cuban Missile Crisis and the Hemispheric Cold War* and *Mexico’s Cold War*. Co-editor of InterConnections book series at UNC.
Cheryl Rofer @cherylrofer.bsky.social Retired nuclear scientist. Worked in Estonia, Kazakhstan, and Los Alamos on environmental cleanup, nuclear nonproliferation, and the nuclear fuel cycle.
She/her.
Blogs at Nuclear Diner and Lawyers, Guns & Money
Photo: Semipalatinsk Nuclear Test Site
Caitlin Talmadge @proftalmadge.bsky.social MIT professor, Brookings senior fellow, series editor at Cornell Press ⎮ Foreign policy, military operations, civil-military relations, nuclear weapons, authoritarianism ⎮ Views are my own ⎮ Book: The Dictator's Army
https://www.caitlintalmadge.com/
Dr. Haris A. Durrani @hdernity.bsky.social Prize Fellow, Harvard.
Law, tech, history. Space. PhD Princeton, JD/BS Columbia. Author, Technologies of the Self.
https://histecon.fas.harvard.edu/ehppf/Haris_Durrani.html
Michael De Groot @mdegroot51.bsky.social Assoc Prof of International Studies at Indiana University Bloomington; Cold War international history and geoeconomics; Book--Disruption: The Global Economic Shocks of the 1970s and the End of the Cold War (Cornell UP, 2024); Stanford baseball alum
Teasel Muir-Harmony @teaselmuir.bsky.social Historian of Science + Technology | Curator of the Apollo Collection at the Smithsonian National Air and Space Museum
Jeff Foust @jfoust.bsky.social Senior Staff Writer, SpaceNews. Tips? Email jfoust@spacenews.com or contact on Signal: jfoust.58.- G Gill Bennett @gillhistory.bsky.social Intelligence historian, music-lover
Målfrid Braut-Hegghammer @malfridbh.bsky.social Professor of War Studies, King’s College London
Founding Director of the Oslo Nuclear Project
Laura Rozen @lkrozen.bsky.social Reporting on foreign policy. Current: https://diplomatic.substack.com Just Security ed board. Al Monitor, Politico, Foreign Policy alum.
🇵🇸Martin “Doomsday” Pfeiffer🖖🏳️🌈 @nuclearanthro.bsky.social Anthro PhD Candidate.
nukes, cats, semiotics, FOIA, existential threats, heritage, nationalism, secrecy, etc.
QUEER
RT/Fave/etc ≠agree
he/him
http://patreon.com/nuclearanthro
http://paypal.me/nuclearanthro
https://osf.io/46sfd/
Ann Finkbeiner @annfinkbeiner.bsky.social Freelance science writer, mostly astro, some natsec sci, some women-in-astro, some grief psych, otherwise whatever I can get paid to write about. I love Baltimore, I do.
Journal of Policing, Intelligence and Counter Terrorism @jpict.bsky.social The Journal of Policing, Intelligence and Counter Terrorism is an international forum for new research and analysis of contemporary security issues. https://www.tandfonline.com/journals/rpic20
Katja Bego @katjabego.bsky.social Senior Research Fellow at Chatham House |Author of "Deep Connections: the hidden battles to control undersea cables" (Polity, Sep 26) | Europe, geoeconomics of tech, tech sovereignty | Amsterdammer in London 🇪🇺
Society for the History of the Philosophy of Technology (HPT) @hptsociety.bsky.social The Society for the History of the Philosophy of Technology (HPT) is dedicated to the study of how we think about technology in all its facets. #philtech #histtech
Security Studies Program MIT @ssp-mit.bsky.social The Security Studies Program at MIT is a graduate-level research and educational program based at the Center for International Studies at MIT. 
Stephen Herzog @herzogsm.bsky.social Professor of the Practice, James Martin Center for Nonproliferation Studies | Associate, Harvard Project on Managing the Atom | nuclear arms control, nonproliferation, disarmament, technology
School of International Studies @mqsois.bsky.social From international security, politics, and criminology, to languages and emerging global cultures, our world-leading researchers provide policymakers, practitioners and students the knowledge and skills needed to navigate international affairs.
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/
H I Sutton @covertshores.bsky.social Independent Defense Analysis, Unconventional Naval Warfare, author, submarines, #OSINT, illustrations. Mostly typos
http://www.hisutton.com/
International Society for First World War Studies @fwwsoc.bsky.social Find out more about the Society on our website https://firstworldwarstudies.org/
Simon Jones @simonjones.bsky.social Writes about old, unhappy, far-off things. Late museum curator. Shows polite interest. FRHistS. https://simonjoneshistorian.com/
W.J. Hennigan @wjhenn.bsky.social correspondent, @nytopinion.nytimes.com.
Larry Pfeiffer @larrypfeifferdc.bsky.social Personal Account / Hayden Center Director / Led White House Situation Room / Fmr CIA Chief of Staff / Nat'l security & intelligence commentator / Speaker
Jeffrey Ding @jeffreyding.bsky.social Assistant Professor at George Washington University | technology and int'l politics | newsletter on China's AI landscape: http://chinai.substack.com
Steve Brady @stevenjbrady.bsky.social History professor at George Washington University. Husband. Dad. Cubs fan.
Stephen Marrin @smarrin.bsky.social Full Prof at James Madison University & Director of Intelligence Analysis program. Former CIA analyst. Editor of journal Intelligence & National Security https://www.tandfonline.com/journals/fint20
George Dvorsky @gdvorsky.bsky.social Science Senior Editor at @gizmodo.com, futurist, bioethicist, electronic musician, amateur astronomer.
The Israeli Forum for Intelligence Studies (IFIS) @ilintelligence.bsky.social Promoting Intelligence Studies in Israel by facilitating knowledge sharing & collaboration among scholars, both within Israel & abroad.
The Map Center @mapcenter.com Andrew Middleton
Cartographer, GIS specialist and educator
A 'Peddler of Wheres' and owner of the oldest map store on the East Coast, The Map Center in Pawtucket RI. It's like a hip record store but for maps.
www.mapcenter.com
Linktr.ee/ecoandrewtrc
Brian Taylor @bdtaylor-su.bsky.social Professor @supolisci.bsky.social and Director of the Moynihan Institute of Global Affairs, @maxwellsu.bsky.social, @syracuseu.bsky.social. Latest book: Russian Politics: A Very Short Introduction. http://amzn.to/3gdhiFe
Harold Trinkunas @htrinkunas.bsky.social Deputy Director at Stanford’s Center for International Security and Cooperation. Usual disclaimers apply.
https://cisac.fsi.stanford.edu/people/harold-trinkunas
Juuso Liekkilä @juuso.bsky.social Space officer @FinnishAirForce. General Staff Officer student & doctoral researcher @FinNDU. Writing mostly about military use of space. Private blueskyer.
Engelsberg Ideas @engelsbergideas.bsky.social Engelsberg Ideas is home to great writing from leading thinkers on history, culture and geopolitics, featuring essays as well as regular podcasts.
https://engelsbergideas.com/
Jamie Withorne @jamiewithorne.bsky.social Nuclear weapons, international politics, and “”emerging”” technology.
Doctoral Research Fellow in Political Science, University of Oslo
LearnWMD Spreadsheet and Substack: www.jamiewithorne.com
@douglaslondon.bsky.social @douglaslondon.bsky.social Retired CIA Ops Officer and Chief of Station; Georgetown SFS, John Hopkins SAIS, and Author of THE RECRUITER: Spying and the Lost Art of American Intelligence- P Dr. Penelope K Hardy @pkhardy.bsky.social Historian of science, technology, & medicine, especially tech of ocean science. Associate professor of history. Book review editor for H-Sci-Med-Tech & H-Oceans. She/her/hers.
Alisa Bokulich @alisabokulich.bsky.social Professor @ Boston U, History & Philosophy of Science—esp Philosophy of Geosciences, Director Phi-Geo Research Group, Assoc @ Harvard U. Hist Sci, Radcliffe Fellow Alum. Settler, wife, & mother. 📸s my crappy phone.
Webpage: https://bokulich.org/
Edward Jones-Imhotep @ejonesimhotep.bsky.social Historian of science and technology | Professor @ University of Toronto | Director @ihpst-uoft.bsky.social | New book - The Broken Machine: Histories of Technology, Social Order, and the Self @mitpress.bsky.social
The Society for Intelligence History @socintelhist.bsky.social 
auonsson @auonsson.bsky.social Every system is a sensor if you hold it right.
Main arena, Baltics. 🇸🇪
mastodon.world/@auonsson , x.com/auonsson backup 🇸🇪
Casillic @casillic.bsky.social Critical Infrastructure, High Consequence / High Integrity Systems, Space, Nuclear, Mathematics, Public Health, HPC
Tong Zhao @tongzhao.bsky.social Senior fellow @carnegieendow.bsky.social
Nuclear, arms control, nonproliferation, new mil tech, Asia-Pacific security, US-China.
Views my own.
https://carnegieendowment.org/people/tong-zhao?lang=en
Stacie Pettyjohn @spettyjohn.bsky.social Director of the defense program and senior fellow CNAS
Brad Duplessis @bradduplessis.bsky.social It doesn’t matter.
Brian E. Crim @briancrim.bsky.social History professor, Holocaust Studies, former intelligence analyst, cat lover, beleaguered department chair, fleeing existential despair, author of Our Germans, Planet Auschwitz and other stuff
@douglasbshaw.bsky.social @douglasbshaw.bsky.social Imaginary provost of the make-believe university of human survival; promoting the creation and dissemination of knowledge to prevent nuclear war
Anatoly Zak @anatolyzak.bsky.social RussianSpaceWeb.com
Matthew L. Jones @nescioquid.bsky.social “How Data Happened” with Chris Wiggins available now! Historian of science, AI/ML computing, sigint, and technology, Princeton
Breaking Defense @breakingdefense.com Breaking Defense: The essential source for military, political, & industry leaders seeking in-depth coverage of global defense strategy & technology.
Sign up for our newsletters: http://bit.ly/2WSlrJK
Dr Cassandra Steer @cassandrasteer.bsky.social Space security - international space law - space governance - IHL - women, peace and security in space. Spacecitizens.substack.com is where you'll find my writings. Founder and CEO of the Australian Centre for Space Governance. Consultant. Mother.
Christopher Clary @claryc.bsky.social Assistant Professor of Political Science, University at Albany; Nonresident Fellow, Stimson Center
National Security Archive @nsarchive.bsky.social An independent research institution that advocates for open government and uses FOIA to collect and publish declassified documents - https://nsarchive.gwu.edu - instagram.com/natsecarchive - tiktok.com/@natsecarchive
MIT Press @mitpress.bsky.social Committed to the daily re-imagining of what a university press can be since 1962.
Website: https://mitpress.mit.edu
The Reader (our home for excerpts, essays, & interviews): https://thereader.mitpress.mit.edu
MIT Press Direct: https://direct.mit.edu/
Joshua Rovner @jrovner.bsky.social Professor of International Relations, American University
Nonresident Senior Fellow, Brookings Institution
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
Joe Maiolo @joemaiolo.bsky.social Professor of International History, Department of War Studies, King’s College London & co-editor The Journal of Strategic Studies
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/
Secrets & Spies Podcast: Global Affairs | Intelligence @secretsandspies.bsky.social A transatlantic podcast exploring the world of espionage, terrorism, geopolitics, and intrigue | Co-hosted by @chriscarrfilm.bsky.social and @mattfulton.net | linktr.ee/secretsandspies
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
Alex Bollfrass @bollfrass.bsky.social Nuclear weapons and intelligence history.
J. Luis Rodriguez @jluisrodriguez.com Assistant Professor at George Mason's Schar School of Policy and Government | Affiliate at Stanford CISAC | Adjunct non-resident fellow at CSIS PONI | PhD from Johns Hopkins | International security, international law, and Global South | 🇺🇸 🇲🇽 🏳️🌈
@vsamsondc.bsky.social @vsamsondc.bsky.social Hates the humidity, loves cats. Works on space policy for @swfoundation.bsky.social, but opinions are mine, not my organization's. She/her
Sanne Verschuren @sannecjv.bsky.social Assistant Professor of International Security at the Pardee School of Global Studies, Boston University || Ph.D. from Brown University || Formerly at Sciences Po, CISAC, Belfer Center || Military Technology, Strategy & Nuclear Weapons
Scott LaFoy @wslafoy.bsky.social Open Source Analysis of ballistic missiles, nuclear weapons, BMD, DPRK, & PRC.
Vice President of Nuclear and Technology Security Programs, Exiger.
Making podcasts over at https://www.armscontrolwonk.com/
All opinions my own.
Taylor Fravel @fravel.bsky.social Studying China's foreign and security policies and director of MIT's Security Studies Program
Steve Trimble @thedewline.bsky.social I’m the Defense Editor at Aviation Week.
Dwayne Day @kennen11.bsky.social Historian of military and civil space programs and policy. In my day job I direct studies for NASA on space and aeronautics subjects including planetary science, astrophysics, and Earth science. Work at the National Academy of Sciences. Trekkie. Dogs.
Elena Grossfeld @kloosha.bsky.social PhD Researcher
War Studies, Kings College London
Russia | Intelligence | Strategic Culture | Cold War
views own
Isaac Kardon @ibkardon.bsky.social Study China maritime strategy & int’l security policy
Senior Fellow at the Carnegie Endowment for International Peace
Adjunct Professor at Johns Hopkins SAIS
Book: China’s Law of the Sea yalebooks.yale.edu/book/9780300256475/chinas-law-of-the-sea/
Marc Polymeropoulos @mpolymer1.bsky.social Once upon a time worked at a 3 letter alphabet soup govt agency. TBI/PTS Survivor. MSNOW ntl security contributor. “Eyes On Geopolitics” pod. Leadership speaker. Obsessive RedSox fan. Heavy Metal aficionado. 🇺🇸🇬🇷