Bulletin of the Atomic Scientists

Two documents on a red table: one page with multiple signatures, one with dense printed text, and a pen placed between them. A person’s hand is visible in the top right corner.

AI for peace: In Rome, Nobel laureates call for disarming AI and nuclear weapons

By François Diaz-Maurin, John Mecklin | Nuclear Risk

Trump spending billions to keep coal alive and kill clean energy

By Dharna Noor | Climate Change

Workers in protective suits handle large blue cylindrical containers, moving them on a rail-mounted platform inside an industrial facility.

Why do we keep ignoring the large quantity of plutonium at Iran’s Bushehr nuclear power plant?

By Gregory Jones | Nuclear Weapons

Europe’s heat wave set records for all-time highs

By Tik Root | Climate Change

An abstract spiral of dark circles appears at the centre, resembling a tornado. Several vintage magazine covers and advertisements are being drawn toward the spiral. The artworks that have already been pulled into it are becoming distorted and replaced with clusters of numbers representing their numerical embeddings.

Courts won’t settle the fight over AI and creative work: Politics will

By Matt Blaszczyk | Disruptive Technologies

An F-35A fighter jet releases a B61-12 dummy nuclear bomb mid-flight against a clear blue sky.

Is London shifting from nuclear deterrence to war-fighting?

By S.M. Amadae, Tom Stevenson | Nuclear Weapons

Donald Trump's face is pictured next to a smartphone displaying one of his social media posts.

Why Trump’s nuclear blackmail of Iran failed spectacularly

By Jack Kennedy | Nuclear Weapons

wind farm in China, panoramic view

The clear winner of Trump’s war in the Middle East is… China, says new report

By Amy Hawkins | Analysis

dormant nuclear reactor towers

In Nebraska, nuclear gets a “yes,” while wind and solar get a “no”

By Anila Yoganathan | Analysis

Iranian flags wave in front of a nuclear power plant complex with a dome-shaped reactor building and a tall red-and-white smokestack in the background.

Beyond alarmism: A realistic assessment of Bushehr’s plutonium risk

By Sasan Karimi | Nuclear Weapons

Smartphone showing an Anthropic announcement page for Claude Fable 5 and Claude Mythos 5 with update notice suspending access to both AI models.

Why AI models like Claude Fable and Mythos defy traditional export control frameworks

By Justin Sherman | Analysis

July issue: Doomsday, the movie

By Dan Drollette Jr | Magazine

Introduction: Doomsday and the movies

By Dan Drollette Jr | Special Topics

VIP observers of H-bomb test

How the movies (and the rest of the media) made me into an anti-nuclear weapons campaigner

By Helen Caldicott | Personal Essay

Two documents on a red table: one page with multiple signatures, one with dense printed text, and a pen placed between them. A person’s hand is visible in the top right corner.

AI for peace: In Rome, Nobel laureates call for disarming AI and nuclear weapons

By François Diaz-Maurin, John Mecklin | Nuclear Risk

A submarine-launched missile emerges vertically from the ocean, creating a large splash and plume of water and vapor.

Chinese nuclear weapons, 2026

By Hans M. Kristensen, Matt Korda, Eliana Johns, Mackenzie Knight-Boyle | Nuclear Notebook

Trump spending billions to keep coal alive and kill clean energy

By Dharna Noor | Climate Change

Workers in protective suits handle large blue cylindrical containers, moving them on a rail-mounted platform inside an industrial facility.

Why do we keep ignoring the large quantity of plutonium at Iran’s Bushehr nuclear power plant?

By Gregory Jones | Nuclear Weapons

Thirteen films that are essential to understanding the nuclear age

By Alex Wellerstein | Magazine

Europe’s heat wave set records for all-time highs

By Tik Root | Climate Change

An abstract spiral of dark circles appears at the centre, resembling a tornado. Several vintage magazine covers and advertisements are being drawn toward the spiral. The artworks that have already been pulled into it are becoming distorted and replaced with clusters of numbers representing their numerical embeddings.

Courts won’t settle the fight over AI and creative work: Politics will

By Matt Blaszczyk | Disruptive Technologies

An F-35A fighter jet releases a B61-12 dummy nuclear bomb mid-flight against a clear blue sky.

Is London shifting from nuclear deterrence to war-fighting?

By S.M. Amadae, Tom Stevenson | Nuclear Weapons

Read the July issue of the Bulletin, “Doomsday: The Movie.” Subscribe to start reading.

Recent highlights

Illustration of power lines standing on the map of the United States against a dark blue background.

Why data center growth forecasts are essential to mitigating their impact on the grid

By Stephen Bessasparis | Disruptive Technologies

Congress and Trump’s policies on research risks wouldn’t have prevented recent lab incidents. Here’s what to do

By Sumnima Singh, Anemone Franz | Biosecurity

solar panels and coal-fired chimneys

Where do Americans get most of their electricity from? (Hint: It’s not coal.)

By Tik Root | Analysis

Sheldon Whitehouse and climate activism poster in US Senate

Conventional wisdom says climate change is a losing issue for Trump opponents. The evidence says otherwise.

By Kate Yoder | Opinion

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The AI Power Trip

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Tracking the Trump administration on existential risk

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Virtual Tour: Turn Back the Clock

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Nuclear Arsenals of the World

The Doomsday Clock timeline.

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Cover by Thomas Gaulkin. <br /><em>Dr. Strangelove</em> film stills courtesy of Columbia Pictures; burnt film strip by Pearljamfan75 / Dreamstime.com.

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