Bulletin of the Atomic Scientists

The authoritative guide to ensuring science and technology make life on Earth better, not worse.

How demagogues destroy democracy: a step-by-step global guide

By John Keane | Special Topics

What it will take to restart decommissioned US nuclear plants. A primer

By Kathryn Huff, Nathan Ryan | Nuclear Energy, Opinion

Mark Cuban with circuitry and a digital planet in background

Mark Cuban on AI, Elon Musk, and Big Tech’s influence on society and elections

By Sara Goudarzi | Disruptive Technologies

A more common enemy: How climate change spreads diseases and makes them more dangerous

By Georgios Pappas | Biosecurity, Climate Change

North Korea sent troops to Russia. The reason(s) are “left to be seen”

By François Diaz-Maurin | Nuclear Weapons

How the fog of war in Ukraine increases the risk of escalation

By Stephen J. Cimbala, Lawrence J. Korb | Nuclear Risk

An existential timeline of the Trump/Pence and Biden/Harris presidencies

By Thomas Gaulkin, François Diaz-Maurin, Jessica McKenzie, Sara Goudarzi, Matt Field | Biosecurity, Climate Change, Disruptive Technologies, Multimedia, Nuclear Risk

A man walks towards a flooded river, across a mud-strewn road.

The role of the scientist in a post-truth world

By John Morales | Climate Change, Opinion

China’s openness about its latest nuclear missile test shows growing confidence vis-à-vis the United States

By Hui Zhang | Nuclear Weapons

The Energy Department just made one plutonium pit. Making more is uncertain

By Dylan Spaulding | Nuclear Weapons

Fully-loaded container ships berth at a dock at the Port of Qingdao in Qingdao city, east Chinas Shandong province. DepositPhotos.com.

How modern slavery—in China and elsewhere—undermines the fight against existential threats

By Erik English | Biosecurity, Climate Change

An existential timeline of the Trump/Pence and Biden/Harris presidencies

By Thomas Gaulkin, François Diaz-Maurin, Jessica McKenzie, Sara Goudarzi, Matt Field | Biosecurity, Climate Change, Disruptive Technologies, Multimedia, Nuclear Risk

Mark Cuban with circuitry and a digital planet in background

Mark Cuban on AI, Elon Musk, and Big Tech’s influence on society and elections

By Sara Goudarzi | Disruptive Technologies

A more common enemy: How climate change spreads diseases and makes them more dangerous

By Georgios Pappas | Biosecurity, Climate Change

How demagogues destroy democracy: a step-by-step global guide

By John Keane | Special Topics

What it will take to restart decommissioned US nuclear plants. A primer

By Kathryn Huff, Nathan Ryan | Nuclear Energy, Opinion

North Korea sent troops to Russia. The reason(s) are “left to be seen”

By François Diaz-Maurin | Nuclear Weapons

China’s openness about its latest nuclear missile test shows growing confidence vis-à-vis the United States

By Hui Zhang | Nuclear Weapons

How the fog of war in Ukraine increases the risk of escalation

By Stephen J. Cimbala, Lawrence J. Korb | Nuclear Risk

September issue: How to protect elections and democracy in a critical political year

By Dan Drollette Jr | Magazine

A man walks towards a flooded river, across a mud-strewn road.

The role of the scientist in a post-truth world

By John Morales | Climate Change, Opinion

Hibakusha group receives Nobel Peace Prize for “demonstrating through witness testimony that nuclear weapons must never be used again”

By François Diaz-Maurin, Thomas Gaulkin | Analysis, Nuclear Risk, Nuclear Weapons

A painted Doomsday Clock surrounded by text snippets and illustrations from the Bulletin’s magazine archives appears beside text that reads, “Discuss the US elections, geopolitics, space, and more at the Bulletin’s annual gathering.” beside a button that reads, “Get my ticket.”

A painted Doomsday Clock surrounded by text snippets and illustrations from the Bulletin’s magazine archives appears beside text that reads, “Discuss the US elections, geopolitics, space, and more at the Bulletin’s annual gathering.” Beside it, a button that reads: “Get my ticket.”

Recent highlights

The experts comment: Key nuclear questions that the US presidential candidates should answer

By François Diaz-Maurin, John Mecklin | Nuclear Weapons

RFK Jr.’s presidential ambitions may have fallen short, but his anti-vax beliefs are winning in many statehouses

By Matt Field | Special Topics

Constitutional mistakes of the past can tyrannize the present—but we can fix them

By Lawrence Douglas | Special Topics

Interview: Lawrence Norden on US election security

By Dawn Stover | Special Topics

The Bulletin interactive

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See all of the world's BSL-4 laboratories—and more

Screenshot of Turn Back the Clock virtual exhibit entrance

Virtual Tour: Turn Back the Clock

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Doomsday Dashboard

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Nuclear Arsenals of the World

The Doomsday Clock timeline.

Doomsday Clock Timeline

What's new at the Bulletin

Artwork created by Lovely Umayam weaves together art and snippets of writing from the Bulletin’s archives to form a landscape mosaic that evokes the interweaving of art, words, and ideas.

Discuss the US elections, geopolitics, space, and more at Conversations Before Midnight

Rose Gottemoeller, the former Deputy Secretary General of NATO, and Manpreet Sethi, a distinguished fellow at the Centre for Air Power Studies, join Bulletin leadership.

The Bulletin welcomes top nuclear security experts to its leadership

Bulletin editor-in-chief John Mecklin (left), Bulletin President and CEO Rachel Bronson (center), and CEO of Lightbridge Corporation Seth Grae (right) converse during the 2023 Doomsday Clock Leadership Luncheon. Photo by Jamie Christiani.

Bronson to step down as Bulletin president & CEO

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Cover design / photo illustration by Thomas Gaulkin. Voting booth photo courtesy of History For Hire.

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