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

Virtual Tour

Images and artifacts from the Turn Back the Clock virtual exhibit. Take the tour here. 

Doomsday Clock conversations

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A site for sore eyes: The Bulletin’s best visual coverage of 2020

By Thomas Gaulkin | Multimedia

Manhattan Project oral history: Peter Lax

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Manhattan Project oral history: Jean Bacher

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Manhattan Project oral history: Mary Lou Curtis

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People’s Climate March in New York City, 2014

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‘Trinity: A Graphic History of the First Atomic Bomb’ by Jonathan Fetter-Vorm

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Who sets the Doomsday Clock?

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The Bulletin of the Atomic Scientists begins publishing in 1945

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H.G. Wells’ novel ‘The World Set Free’ predicts atomic warfare

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President Barack Obama, New START and reducing carbon emissions

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Artificial intelligence and disruptive technology

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Watch the 2025 Doomsday Clock announcement on January 28