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

A scientist works at a biosafety level 4 lab.

Natural spillover or research lab leak? Why a credible investigation is needed to determine the origin of the coronavirus pandemic

By Filippa Lentzos | Biosecurity

Can they control the weather? How the secretive history of weather weapons fuels conspiracy theories

By Justin Key Canfil | Climate Change
US Capitol with flag

Why a newly passed House “terrorism financing” bill could threaten nonprofits and free speech

By Sara Goudarzi | Disruptive Technologies, Interviews
Three Mile Island

Congress wants to turn the nuclear regulator into the US industry’s cheerleader—again

By Victor Gilinsky | Nuclear Energy, Opinion

Why I’m not in Baku—and how to prevent further co-optation of UN climate summits

By Allison Morrill Chatrchyan | Climate Change
wildfire aftermathNew Jersey

It’s November, and the Northeast is on fire

By Paige Vega | Climate Change

When Rome’s fountains run dry

By Gabriele Di Donfrancesco | Climate Change, Investigative Reporting
Representatives to the Biological Weapons Convention meet.

What will be the impact of AI on the bioweapons treaty? 

By James Revill, Clarissa Rios, Louison Mazeaud | Biosecurity

Dispatch from a nuclear petting zoo

By Collin Van Son | Nuclear Weapons, Opinion, Voices of Tomorrow
Robert F. Kennedy Jr.

Trump picks anti-vaccine activist RFK Jr. as health secretary

By | Biosecurity
Kitty Tucker, founder of Supporters of Silkwood, describes how Karen Silkwood's car went off the road in 1974 and she was killed, as Father William Davis, investigator for the Silkwood family, listens during a press conference after the Supreme Court upheld the Silkwood family decision.

The death of Karen Silkwood—and the plutonium economy

By Robert Alvarez | Analysis, Nuclear Risk
implosion at National Ignition Facility lab test

The entanglement of fusion energy research and bombs

By Arjun Makhijani | Nuclear Energy, Nuclear Risk, Nuclear Weapons

Can they control the weather? How the secretive history of weather weapons fuels conspiracy theories

By Justin Key Canfil | Climate Change

US Capitol with flag

Why a newly passed House “terrorism financing” bill could threaten nonprofits and free speech

By Sara Goudarzi | Disruptive Technologies, Interviews

Biden allowing Ukraine to strike into Russia is much ado for little consequence

By Mariana Budjeryn | Nuclear Weapons, Opinion

United Kingdom nuclear weapons, 2024

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

When Rome’s fountains run dry

By Gabriele Di Donfrancesco | Climate Change, Investigative Reporting

Representatives to the Biological Weapons Convention meet.

What will be the impact of AI on the bioweapons treaty? 

By James Revill, Clarissa Rios, Louison Mazeaud | Biosecurity

An advertisement reads, “November Magazine: Fusion — The next big thing… again? Subscribe to start reading.”

The Bulletin’s 2024 November Magazine Cover appears beside text that reads, “November magazine: Fusion — the next big thing … again? Subscribe to start reading.”

The Bulletin interactive

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

Virtual Tour: Turn Back the Clock

Doomsday Dashboard

Nuclear Arsenals of the World

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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