Providing news on nuclear risk, climate change, and disruptive technologies. We set the Doomsday Clock. Receive updates: https://nitter.gq/t.co/oxjCouHCYZ
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"Viable alternatives exist that would reduce strain on the US nuclear complex and reduce the risks and costs of the program itself [...] But they have only one potentially elusive requirement: Restraint."
— Dylan Spaulding and Curtis T. Asplund
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"Keeping humans in the loop is a good first step towards responsible integration of military AI," writes Eva-Nour Repussard.
"But it should not be the be-all and end-all of responsible integration."
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Facing three paths following major US strikes on its nuclear infrastructure, Iran is most likely to rebuild its latent capacity—balancing national pride and economic need while avoiding extreme risks, writes Sina Azodi @ProfSAzodi.
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In addition to our regular website content, the Bulletin publishes a premium magazine six times a year. Subscribers get access to new issues, our 80 year archive, and invitations to supporter only events.
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In 1978, Taiwanese authorities began building a nuclear waste storage facility on the island of Lanyu, keeping the local community in the dark.
It's a case study in how political bodies manipulate the framing of nuclear hazards, writes Louie Palmer.
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AI has potential to not only increase nuclear risk but to mitigate it, writes @HerzogSM.
This could give the US and China a shared purpose amid disagreements over military AI: using AI to prevent nuclear materials theft and sabotage of nuclear facilities.
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As the NNSA pushes to dramatically accelerate plutonium pit production, it's cutting safety corners and risking nuclear instability—all to fix a problem that scientists say doesn't exist, write Dylan Spaulding and Curtis T. Asplund.
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Nelson Mandela said that "the best weapon is to sit down and talk."
President Trump has an opportunity to channel his concern about nuclear risks into a serious attempt to bring the leaders of the nuclear-armed states together, writes @JuanManSantos.
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Did authors of the Energy Department's 2025 climate report confuse two layers of the Earth's atmosphere, and then use faulty analysis to question evidence of man-made climate change?
That's the suggestion in a recent paper by five climate scientists.
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Bulletin of the Atomic Scientists retweeted
"The spirit of Reykjavik should help guide the way forward for tackling the nuclear dangers of today.”
40 years ago, the Reagan-Gorbachev summit led to a historic nuclear arms control agreement. With nuclear risks rising again, it is time for President Trump to channel his concern into renewed diplomacy, writes @JuanManSantos in the @BulletinAtomic.
Read the op-ed here: thebulletin.org/2026/10/pres…
Climate contrarians questioned evidence of a human fingerprint on climate change in a report commissioned by the United States Energy Department.
Critics say it was based on flawed analysis, writes Bulletin climate editor Jessica McKenzie.
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In 1986, Ronald Reagan and Mikhail Gorbachev met to confront the threat of nuclear weapons and find common ground despite the Cold War.
40 years on, Donald Trump should take inspiration from Reagan to address today's nuclear threat, writes @JuanManSantos.
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Former President of Colombia and Nobel Peace Prize Laureate @JuanManSantos writes that for Donald Trump to secure the legacy he desires, he should channel Ronald Reagan's diplomacy to stabilize relations with Russia and China and curb nuclear arms risks.
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Clinical trials have long been closely watched by patients and doctors hopeful for treatments to diseases, write @matt_motta, @THCallaghan, and Michael Stein.
Now these trials have a new audience: those placing bets on prediction markets.
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Bulletin of the Atomic Scientists retweeted
Indian nuclear weapons, 2026
Via @BulletinAtomic by @nukestrat, @mattkorda, @elianajjohns, and Scoville Fellow '23
@m_knight7 @scientistsorg. thebulletin.org/premium/2026…
Bulletin of the Atomic Scientists retweeted
In @BulletinAtomic, @FilippaLentzos and @FuturistYB examine the assumptions behind @AnnieJacobsen's Biological War: A Scenario and what they mean for biosecurity policy.
Read the full piece ⬇️
thebulletin.org/2026/10/anni…
"Because of the US Atomic Energy Act’s fine print and the deal’s legal shortcomings, Congress has at least 9 months and considerable leverage to make things right."
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Phinehas Lampman, a researcher at @uidaho, used thermal-infrared images collected by drones and analyzed by machine-learning models to predict how wildfires will spread.
Learn more about what technologies he and others are pursuing to fight wildfires.
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Far from being helpless against a veto, Congress holds significant legal and procedural power over the administration's incomplete Saudi nuclear deal—if lawmakers choose to use it.
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