Patrick Porter @patporter76.bsky.social Prof, Int Security, @unibirmingham. Contributing ed, @TheCriticMag. @RUSI_org. @CatoFP. @RANDEurope. The Case for Realism, Stanford UP. Book on Churchill w/Polity, on the way. 🇦🇺🇬🇧
Gabe Rosenberg @gaber205.bsky.social Work: CTSotS; Fun: UMass, dogs, apizza, politics; I Am From The Boogie Down, now in CT
Rosanna Farbøl @farboel.bsky.social Assoc.Prof @ University of Oslo. Contemporary history, especially the Cold War, civil defence, preparedness, bunkers and ruins. Getting into Digital Humanities. Posts in Danish and English.
Derek Johnson @derekjesq.bsky.social Chaos Muppet, Order Rising. CEO, ResearchCollaborative.org. Young(ish) Leader, Munich Security Conference + Friends of Europe. Former head of GlobalZero.org. Radicalized by basic decency. Made in #Iowa with parts from #Iran. he/him 🇦🇲
Torkil Sørensen @torkilsoerensen.bsky.social Historian interested in #Worldcommunism esp. in Germany and Denmark.
Danish Refugee Council 1986-2000. Nordic Council 2000-2017.
(Re-)posting about history-in-the-making and #history. Now and then photos. Posting in (not perfect) English / German / Danish
Project on Managing the Atom @managingtheatom.bsky.social MTA is the primary nuclear policy research project at @Belfercenter.bsky.social, @Harvardkennedy.bsky.social.
Repost ≠ endorsement.
Dave Kearn @davekearnjr.bsky.social Son, brother, uncle. Teacher, retired bartender, (slowly) improving golfer. RIP E.B.
“It’s a fragile thing, this life we lead…”
Laura Holgate @laurashholgate.bsky.social Former US UNVIE Ambo, #NSC44, gender champion, adventurous foodie, greyhound mom, world traveler, proud Princetonian. Personal acct; views my own.
Marshall Beier @jmarshallbeier.bsky.social Researching imagined childhood as a social technology of governance and the everyday militarization of children’s lives; International Relations; Critical Security Studies. Professor, Department of Political Science, McMaster University. marshallbeier.com
Matthew Bunn @matthew-bunn.bsky.social Father, husband, citizen, professor, focusing mainly on nuclear weapons and nuclear energy issues. Faculty lead for Harvard's Managing the Atom project: www.belfercenter.org/programs/managing-atom
My website: matthewbunn.scholars.harvard.edu
Andreas Umland @umland.eurosky.social Fellow @epik-ukraine.bsky.social & Analyst @sceeus-ui.bsky.social @uisweden.bsky.social. Editor, book series SPPS & Ukrainian Voices: www.ibidem.eu/en/Series/Society-Politics/. Assoc. Prof., Kyiv-Mohyla Academy: orcid.org/0000-0001-7916-4646.
@bpervaiz.bsky.social @bpervaiz.bsky.social 
Stephen Walt @stephenwalt.bsky.social Harvard professor, realist, FP columnist. Tennis enthusiast, amateur musician, proud dad, & grateful husband. Troubled by the state of the world & looking for solutions. For speaking engagements contact John Bute at john@chartwellspeakers.com
Department of Political Science, University of Oslo @statsvitenskap.bsky.social ISV - Institutt for statsvitenskap, UiO
University of Oslo, Norway
https://www.sv.uio.no/isv/
Profile photo: © UiO/Arthur Sand
Taylor Fravel @fravel.bsky.social Studying China's foreign and security policies and director of MIT's Security Studies Program
Catherine Dill @catherinedill.bsky.social Formerly known as atomic_pickles, but still thinking about atomic pickles. Fancies: gardens, birds, mountains & rocks, satellites, Delftware, N95s. She/her. Only personal views reflected.
Emory @nuclearalchemy.bsky.social Queer trans disabled nuclear engineer and cat dad. TTRPG lover, SCAdian, general nerd. (They/he)
Jeremy Pressman @djpressman.bsky.social US and Arab-Israel-Palestine, protests in US, politics
(he/him)
Arnold Bogis @arnoldbogis.bsky.social Analyst, writer. Nuke/rad, health security, disaster preparedness. Worked here, there, everywhere. Cat dad. Views my own.
Bruno Tertrais @brunotertrais.bsky.social Deputy Director, Fondation pour la recherche stratégique.
Non-Resident Fellow, Institut Montaigne.
Geopolitics, strategy and stuff.
Personal account.
b.tertrais@frstrategie.org
Books: tinyurl.com/bdzbxnyx
John Carl Baker @johncarlbaker.bsky.social foreign policy, international peace and security, nuclear weapons, antiquity
Words: Nation, Bulletin of the Atomic Scientists, NK News, US Institute of Peace, New Republic, elsewhere
seniores tollunt omnia
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
Asia-Pacific Leadership Network @apln.network A network of political, military, diplomatic and thought leaders in the Asia-Pacific working to address security challenges and eliminate nuclear weapons risks.
Arms Control Association @armscontrolnow.bsky.social 
Jamie Kwong @jamiekwong.bsky.social Fellow at the Carnegie Endowment for International Peace | KCL PhD | Nukes and nonpro | RT≠endorsement
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 | 🇺🇸 🇲🇽 🏳️🌈
Eliana Johns @elianajjohns.bsky.social PhD Student @ University of Maryland & Research Advisor with Nuclear Information Project @ Federation of American Scientists | Talks about nukes and satellite imagery (views are my own)
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/
Jon B. Wolfsthal @jonatomic.bsky.social Nuclear Fellow @ Pax Sapiens, former Bulletin of Atomic Scientists and State Department International Sec Advisory Board, CNAS Sr. Fellow, former National Security Council. No #manels, Yankees/Gunners.
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.
Council on Strategic Risks @councilonstrategicrisks.org CSR is dedicated to anticipating, analyzing and addressing core systemic risks to modern security. We work on climate and ecological security, biological and nuclear security, and track emerging risks as new technologies disrupt across all domains.
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/
Maaike @maaikeverbruggen.bsky.social non-practicing intellectual on war & tech
NL/EN
Rivet Amber @rivetamber.bsky.social Math, Physics, Computer hardware & Nuclear weapons history.
Ben Loehrke @nonstrategic.bsky.social Program Officer for Nuclear Weapons at Stanley Center for Peace and Security
Ex-Twitter @nonstrategic
https://stanleycenter.org
Federation of American Scientists @scientistsorg.bsky.social Striving for a safer world since 1945
science policy | nuclear weapons | clean energy | STEM education | artificial intelligence | data privacy | much much more
Council for a Livable World @livableworld.bsky.social Political action to reduce and eventually eliminate nuclear threats. We've helped elect 400 Members of Congress since 1962.
livableworld.org
Casillic @casillic.bsky.social Critical Infrastructure, High Consequence / High Integrity Systems, Space, Nuclear, Mathematics, Public Health, HPC
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
Dr. Tara Drozdenko @tdrozdenko.bsky.social Director, Global Security Program @Union of Concerned Scientists. Working to reduce the risk of nuclear war, address the injustice and harm done by nuclear weapons, and move us closer to a world free from nuclear weapons. Oxford Comma enthusiast.
Chase @chalexthegreat.bsky.social Nuclear weapons policy wonk. Opinions my own.
SOMA
RTs≠endorsements. he/him/his
Tom Bielefeld @tombielefeld.bsky.social Researcher/Consultant/Trainer #NuclearSecurity & #Nuclear #Nonproliferation; @INS_Forum; @WINS_org; formerly Harvard's @BelferCenter; Chronotype/B, from #Bremen (Contact via https://sites.google.com/site/tombielefeld/)
Daniel Salisbury @dbsalisbury.bsky.social Senior Fellow for Nuclear Arms Control, Non-Proliferation and Disarmament at the International Institute for Strategic Studies (IISS).
Mark Bell @marksbell.bsky.social Associate Professor of Political Science at the University of Minneota, mostly studying nuclear weapons, international security, and US foreign policy. Opinions mine. www.markbell.org 
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/
Nick Kodama @nickkodama.bsky.social PhD candidate at Georgetown | Researching nukes, IR, Japan, East Asia | Also posting photos of my cat and food.
@emmaclairefoley.bsky.social @emmaclairefoley.bsky.social 
James Cameron @jjjcameron.bsky.social Professor of Modern North American History at the University of Oslo, Norway. Nuclear strategy and arms control.
François Diaz-Maurin @francoisdm.bsky.social Nuclear editor @thebulletin.org. Fmr MacArthur Found. & Marie S.-Curie fellow @stanfordcisac.bsky.social. Fmr engineer in US/French nuclear ind. 1st gen. Father x3. Cello. Synthbass. Kyokushin. Autism. | Tips: francois@thebulletin.org Signal: francoisdm.21
Mackenzie Knight-Boyle @mknight.bsky.social Research and Project Manager @ Federation of American Scientists - Nuclear Information Project
Mother to a demonic chihuahua named Pippin 🐾
Views are my own
Tom Z. Collina @tomcollina.bsky.social Senior Policy Advisor, Ploughshares Fund. Coauthor, THE BUTTON. Proud husband, father, dog-person.- W woolaf @woolaf.bsky.social Nuclear nerd and lover of baseball. Owner of the cutest dog in the world.
Christopher Clary @claryc.bsky.social Assistant Professor of Political Science, University at Albany; Nonresident Fellow, Stimson Center
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/
Stephen Young @atomicwonk.bsky.social Advocate for more sensible nuclear weapons policies, firm believer that we should not live in a world where hundreds of millions could be dead in an hour. Associate Director for Government Affairs, Global Security Program, Union of Concerned Scientists
Alex Bollfrass @bollfrass.bsky.social Nuclear weapons and intelligence history.
Laura Grego @lauraegrego.bsky.social Senior scientist & research director, Global Security Program, ucsusa.org. Space, missile defense, nuclear weapons. 
Adam Mount @ajmount.com Deterrence, nuclear strategy, progressive foreign policy.
Fmr. FAS, CAP, CFR, Ph.D. Government, Georgetown.
Bio: ajmount.com
Banners: @uahirise.bsky.social
James Schmeling @jschmeling.bsky.social Founder, Arsenal Industrial Restoration Partners. Restoring capacity. Rebuilding Readiness. Matching/restoring facilities with defense and commercial manufacturers. USAF veteran (AFTAC). President & CEO, National Defense University Foundation.
Frank O'Donnell @frank11285.bsky.social Research Program Head, @apln.network
Adjunct Fellow, @eastwestcenter.bsky.social
Opinions my own, reposts ≠ endorsement.
https://www.linkedin.com/in/frank-o-donnell-b84675158
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
Decker Eveleth @dexeve.bsky.social PRC and DPRK strategic forces analyst with CNA. BA Reed College, MA Middlebury Institute. NSF GRFP. 
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
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.
Matt Korda @mattkorda.bsky.social I count nukes for the Federation of American Scientists + the Stockholm International Peace Research Institute. 🇨🇦 Views my own.
Dmitry Stefanovich @dvsteff.bsky.social Nukes, missiles, military, space, tech, music, cats, #STRATDELA and #HYPERHYPE 
Dave Schmerler @schmerler.bsky.social 
Jeffrey Lewis @armscontrolwonk.bsky.social William J. Perry Lecturer at Stanford CISAC & Distinguished Research Fellow FPRI. Member of the Bulletin of Atomic Scientists Science and Security Board & National Academies Committee on Int’l Security and Arms Control.
Stephen Schwartz @atomicanalyst.bsky.social Editor/Co-author, “Atomic Audit: The Costs and Consequences of US Nuclear Weapons Since 1940” • Nonresident Senior Fellow, Bulletin of the Atomic Scientists • Nuclear weapons expert (history, policy, costs, accidents) and tracker of the nuclear “Football.”
Alex Wellerstein @wellerstein.bsky.social Nuclear historian. Prof@Stevens Institute of Technology. Visiting researcher@Nuclear Knowledges, Sciences Po, Paris. Senior Fellow@thebulletin.org. Author: THE MOST AWFUL RESPONSIBILITY (2025). Creator of NUKEMAP. Blogging @ https://doomsdaymachines.net.
Hans Kristensen @nukestrat.bsky.social Director, Nuclear Information Project, Federation of American Scientists. Tracking nuclear arsenals, co-author of Nuclear Notebook, SIPRI Yearbook. Opinions my own.
Website: https://fas.org/initiative/nuclear-information-project/
Pavel Podvig @russianforces.org Russian nuclear forces, nuclear arms control, disarmament, verification. Strictly personal views here.
All coordinates are at http://russianforces.org/podvig
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
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
Bluesky @bsky.app official Bluesky account (check username👆)
Bugs, feature requests, feedback: support@bsky.app
Nuclear Threat Initiative @nti.org A nonprofit, nonpartisan global security organization focused on reducing nuclear, biological, and emerging tech threats imperiling humanity.
🇵🇸Martin “Doomsday” Pfeiffer🖖🏳️🌈 @nuclearanthro.bsky.social Anthro PhD Candidate
nukes, cats, semiotics, FOIA, existential threat, heritage, nationalism, secrecy, etc
QUEER
multiply neurodivergent
RP/Fave/etc ≠agree
he/him
patreon.com/nuclearanthro
paypal.me/nuclearanthro
https://OSF.io/46sfd/
UMass Amherst @umassamherst.bsky.social #UMassAmherst is the largest public research university in New England distinguished by top-ranked academics, innovative research, and programs. Community Guidelines: https://bit.ly/4j5Ujgd
https://www.umass.edu
University of Connecticut @uconn.bsky.social Official Bluesky account for the University of Connecticut 
Belfer Center for Science and International Affairs @belfercenter.bsky.social The Belfer Center for Science and International Affairs is the hub of Harvard Kennedy School's research, teaching, and training in international security and diplomacy, environmental and resource issues, and science and technology policy.
belfercenter.org