Centre for Nuclear Strategy and Security @kclcnss.bsky.social The Centre for Nuclear Strategy and Security (CNSS) is an interdisciplinary research & teaching group focusing on nuclear weapons and international security. Part of @WarStudies @KingsCollegeLondon
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.
Centre for International Security - Hertie School @hertiesecurity.bsky.social A home for the study and debate of today's complex security challenges at the Hertie School in Berlin.
Hertie School @hertieschool.bsky.social Understand today. Shape tomorrow.
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
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/
🇵🇸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/
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.”
Dave Schmerler @schmerler.bsky.social 
Matt Korda @mattkorda.bsky.social I count nukes for the Federation of American Scientists + the Stockholm International Peace Research Institute. 🇨🇦 Views 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.
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
Decker Eveleth @dexeve.bsky.social PRC and DPRK strategic forces analyst with CNA. BA Reed College, MA Middlebury Institute. NSF GRFP. 
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
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.
Adam Mount @ajmount.com Deterrence, nuclear strategy, progressive foreign policy.
Fmr. FAS, CAP, CFR, Ph.D. Government, Georgetown.
Bio: ajmount.com.
Banners: @UAHIRISE.
Laura Grego @lauraegrego.bsky.social Senior scientist & research director, Global Security Program, ucsusa.org. Space, missile defense, nuclear weapons. 
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
Christopher Clary @claryc.bsky.social Assistant Professor of Political Science, University at Albany; Nonresident Fellow, Stimson Center
Tom Z. Collina @tomcollina.bsky.social Senior Policy Advisor, Ploughshares Fund. Coauthor, THE BUTTON. Proud husband, father, dog-person.
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
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
@emmaclairefoley.bsky.social @emmaclairefoley.bsky.social 
Nick Kodama @nickkodama.bsky.social PhD candidate at Georgetown | Researching nukes, IR, Japan, East Asia | Also posting photos of my cat and food.
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 
Daniel Salisbury @dbsalisbury.bsky.social Senior Fellow for Nuclear Arms Control, Non-Proliferation and Disarmament at the International Institute for Strategic Studies (IISS).
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/)
Chase @chalexthegreat.bsky.social Nuclear weapons policy wonk. Opinions my own.
SOMA
RTs≠endorsements. he/him/his
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.
Casillic @casillic.bsky.social Critical Infrastructure, High Consequence / High Integrity Systems, Space, Nuclear, Mathematics, Public Health, HPC
Rivet Amber @rivetamber.bsky.social Math, Physics, Computer hardware & Nuclear weapons history.
Maaike @maaikeverbruggen.bsky.social non-practicing intellectual on war & tech
NL/EN
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/
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.
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.
Eliana Johns @elianajjohns.bsky.social Senior Research Associate with Nuclear Information Project @ Federation of American Scientists & Grad Student @ Georgetown SFS | Talks about nukes and satellite imagery | (views are my own)
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 | 🇺🇸 🇲🇽 🏳️🌈
Jamie Kwong @jamiekwong.bsky.social Fellow at the Carnegie Endowment for International Peace | KCL PhD | Nukes and nonpro | RT≠endorsement
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.
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
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
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
Arnold Bogis @arnoldbogis.bsky.social Analyst, writer. Nuke/rad, health security, disaster preparedness. Worked here, there, everywhere. Cat dad. Views my own.
Amy J. Nelson @amyjnelsonphd.bsky.social Foreign Policy & National Security
Nuclear and AI Futures
Senior Fellow, Future Security Program, New America
Adjunct Faculty, Georgetown University
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
Matt Fuhrmann @mcfuhrmann.bsky.social Political science professor at Texas A&M. International relations, nuclear weapons, alliances, interstate conflict.
Ben Loehrke @nonstrategic.bsky.social Program Officer for Nuclear Weapons at Stanley Center for Peace and Security
Ex-Twitter @nonstrategic
https://stanleycenter.org
Carl Robichaud @carlrobi.bsky.social Program Officer on nuclear policy at Longview Philanthropy (http://longview.org). Opinions 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
Tanisha Fazal @tanishafazal.bsky.social Professor of Political Science at the University of Minnesota. Specializing in sovereignty, armed conflict, international law, and military medicine. Plus LEGOs & chocolate.
Dmitry Stefanovich @dvsteff.bsky.social Nukes, missiles, military, space, tech, music, cats, #STRATDELA and #HYPERHYPE 
Veli-Pekka Kivimäki @vpkivimaki.bsky.social Intelligence analyst by day, OSINT in academia, engineer at heart. Now: Finnish Security and Intelligence Service. Adjunct, Johns Hopkins. Past: Finnish Defence Forces, Bellingcat, Microsoft, Nokia.
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/
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.
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.
Carl Henrik Knutsen @chknutsen.bsky.social Political science professor, University of Oslo; Research group leader, CIR group; Researcher, PRIO; co-PI, V-Dem
Haakon Gjerløw @haakongjerlw.bsky.social Acting Director at the Peace Research Institute Oslo (PRIO). Opinions are my own.
https://www.prio.org/people/11472
Jørgen Bølstad @boelstad.bsky.social Professor of Political Science at Uni. Oslo. Into causal inference and statistical modeling. Posting data science projects at Estimite.com. 
Felix Haass @felixhaass.bsky.social Assistant Professor for Comparative Politics @ Humboldt-Universität zu Berlin
Researching political violence & the inner workings of dictatorships
https://felixhaass.de/
Tore Wig @torewig.bsky.social Political Science Professor at University of Oslo. Working on political violence, war, democracy and autocracy. Visiting 24-25 Nuffield College & DPIR Oxford University.
Joel Petersson Ivre 유엘 @joelivre.bsky.social 🇸🇪 in 🇰🇷 | "Yoo-el" | Senior Policy Fellow at Asia-Pacific Leadership Network | Nuclear Non-Proliferation and Disarmament | Shilling for Big Disarma | views mine and not to be taken too seriously | same id on the Old Place
Kjølv Egeland @kjolvegeland.bsky.social Senior researcher at NORSAR. Working on international security, nuclear weapons, and climate politics.
Ina L Kristiansen @inalkristiansen.bsky.social PhD Candidate @ University of Oslo - MPhil in Peace and Conflict Studies - Researching elite politics in autocratic regimes- W woolaf @woolaf.bsky.social Nuclear nerd and lover of baseball. Owner of the cutest dog in the world.
Andreas Persbo @persbo.bsky.social Programme Director at the One Earth Future Foundation, formerly with UNIDIR, European Leadership Network, and VERTIC.
Øyvind Stiansen @oyvindstiansen.bsky.social Associate Professor, Department of Political Science, University of Oslo. 
Alexander H. Montgomery @alexmontgomery.bsky.social Professor @reed.edu
Nonresident Senior Fellow @newamerica.org
IR/SNA/STS/WMD
alexmontgomery.com
http://tinyurl.com/oxhbpo
I'm not a donkey, I don't have a field.
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. 
𝙅𝙖𝙘🍩𝙗 𝙉𝙮𝙧𝙪𝙥 @jacobnyrup.bsky.social I (try to) advance our knowledge on the politics of dictatorships, political elites, comparative politics, and 💵🏠 as Professor of Political Science at University of Oslo. I also collect loads of data on governments: https://whogov.net/.
Thord Are Iversen @thelookout.bsky.social Military and defense issues, as seen from NATOs northern flank.
Special interest: The Russian Navy.
Independent Defense Analyst, all analysis and opinions are my own
Andrey Baklitskiy @baklitskiy.bsky.social Nukes at UNIDIR. Views own, RT/❤️ ≠ endorsement
James Cameron @jjjcameron.bsky.social Professor of Modern North American History at the University of Oslo, Norway. Nuclear strategy and arms control.
Pavel Podvig @russianforces.org Russian nuclear forces, nuclear arms control, disarmament, verification. Strictly personal views here.
All coordinates are at http://russianforces.org/podvig
Arms Control Association @armscontrolnow.bsky.social 
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.
Nuclear Threat Initiative @nti.org A nonprofit, nonpartisan global security organization focused on reducing nuclear, biological, and emerging tech threats imperiling humanity.
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.
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
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/
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
Alex Bollfrass @bollfrass.bsky.social Nuclear weapons and intelligence history.
VERTIC @vertic.bsky.social Founded in 1986. The Verification Research, Training and Information Centre (VERTIC) supports the development, implementation and verification of international agreements as well as initiatives in related areas.
Nei til Atomvåpen @neitilatomvapen.org Nei til Atomvåpen sin offisielle Bluesky-bruker
neitilatomvapen.org
Grethe Østern @gretheostern.bsky.social Special advisor on weapons policy at Norwegian People's Aid. Editor of Nuclear Weapons Ban Monitor. Member of International Steering Group of International Campaign to Abolish Nuclear Weapons (ICAN). Formerly co-chair of Cluster Munition Coalition.
Michal Onderco @profonderco.bsky.social Professor of International Relations at Erasmus University Rotterdam, affiliated with Charles University in Prague. VU Amsterdam, EUI, CISAC, WIAS-alum. Nuclear weapons | foreign policy | CEE
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
Mette Undheim Sandstad @metteus.bsky.social PhD candidate at University of Oslo, Departement of Political Science. Working on domestic climate governance and the organization of public (climate) administrations.
Jane Vaynman @janevaynman.bsky.social Assistant Professor of Strategic Studies at Johns Hopkins SAIS. I study arms control, nuclear weapons, international institutions, and emerging technology.
Jon Bøe Valgermo @jbvalgermo.bsky.social PhD fellow in politcal science at the University of Oslo
Marianne Dahl @mariannedahl.bsky.social Senior researcher @PRIOresearch and deputy editor @JPR_journal, Non-violence, security force behavior, democratization & peace processes. Opinions are my own. Webpage: www.mariannedahl.com
Kristine Helskog @kristinehelskog.bsky.social Research Assistant at Peace Research Institute Oslo (PRIO) and political science student at @UniOslo. Currently working on Peace Science Infrastructure in the PRIO-GRID v3 team and the EdAttack project.
Amalie Nilsen @amalienilsen.bsky.social PhD in political science @University of Oslo. Managing Editor @JournalofPeaceResearch
Ploughshares @ploughshares.bsky.social Building a future beyond nuclear fear. We aim to reduce and eventually eliminate #nuclearweapons & promote stability where they exist. 
Marion Messmer @mgmessmer.bsky.social Programme Director for International Security at Chatham House
Former BASIC, King's College London
Kaja Bakke @kajbak.bsky.social PhD candidate at the Departnent of Political Science, University of Oslo. Researching autocratization, mobilisation in defense of democracy and how the two connect🔄
UiO - Det samfunnsvitenskapelige fakultet @unioslo-svfak.bsky.social Det samfunnsvitenskapelige fakultet, UiO. Størst på samfunnsforskning.