Follow our Iran coverage

Satellite view of a tunnel entrance with a blue truck, several smaller vehicles, and surrounding sandy terrain.

Analysis: Iran likely transferred highly enriched uranium to Isfahan before the June strikes

By François Diaz-Maurin | Nuclear Weapons
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.

Trump’s ‘a whole civilization will die’ threat against Iran exploits long-standing ambiguity over what Washington considers legal in war

By Ali Alkis, Ludovica Castelli | Nuclear Risk
Tehran.

What should be done about Iran’s potential secret chemical and biological weapons programs?

By Christina McAllister, Richard T. Cupitt | Biosecurity
Participation in the Nuclear Non-Proliferation Treaty. Countries in red or orange are non-members.

How the Iran War undermines the nuclear nonproliferation regime

By George Perkovich | Analysis
Yield sign with a human carrying a gun and walking a robot against a dark gray background.

Outdated language obscures the risks of autonomous weapons

By Arthur Holland Michel | Disruptive Technologies
Scientist

The keys to a better gain-of-function policy: Accountability and a ‘fair and rigorous’ risk assessment

By Thomas Kelly | Biosecurity
Paul Ehrlich portrait

Understanding the fragility of our planetary home: The legacy of Paul Ehrlich

By Michael E. Mann, Peter Gleick, John P. Holdren | Climate Change
A stealth bomber aircraft flies with landing gear extended, with snow-capped mountains and a blue sky in the background.

The misguided quest for nuclear weapons in Nordic countries

By Tytti Erästö, Vladislav Chernavskikh, Vitaly Fedchenko | Nuclear Weapons
Dick Garwin received the Presidential Medal of Freedom in 2016 (White House photo).

Senseless obloquy: Benjamin Wilson’s false and incoherent vilification of Hans Bethe and Richard Garwin

By Tom Garwin | Opinion
A plume of smoke rises after an explosion on February 28 in Tehran, Iran. After explosions were seen in the Iranian capital, the office of the Israeli Defense Minister issued a statement saying it had launched a preemptive strike against the country. (Smart phone photo by Majid Saeedi/Getty Images)

From medicine to ambulances, how the Iran war is exposing US health care vulnerabilities 

By Kristen Cline | Biosecurity

What can biosecurity learn from cybersecurity? A lot.

By Filippa Lentzos, Tim Stevens | Biosecurity
woodcut 1717 great snow Massachusetts

Reasonable doubt? How The Free Press covers climate change

By Jessica McKenzie | Climate Change

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.

Trump’s ‘a whole civilization will die’ threat against Iran exploits long-standing ambiguity over what Washington considers legal in war

By Ali Alkis, Ludovica Castelli | Nuclear Risk

Participation in the Nuclear Non-Proliferation Treaty. Countries in red or orange are non-members.

How the Iran War undermines the nuclear nonproliferation regime

By George Perkovich | Analysis

Satellite view of a tunnel entrance with a blue truck, several smaller vehicles, and surrounding sandy terrain.

Analysis: Iran likely transferred highly enriched uranium to Isfahan before the June strikes

By François Diaz-Maurin | Nuclear Weapons

A sleek, white stealth bomber aircraft is displayed in a hangar with a large American flag in the background.

United States nuclear weapons, 2026

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

Tehran.

What should be done about Iran’s potential secret chemical and biological weapons programs?

By Christina McAllister, Richard T. Cupitt | Biosecurity

Scientist

The keys to a better gain-of-function policy: Accountability and a ‘fair and rigorous’ risk assessment

By Thomas Kelly | Biosecurity

Support the Bulletin—in style. Shop designs that raise awareness about Nuclear risk, climate change, and disruptive technologies. Visit the store.

Support the Bulletin—in style. Shop designs that raise awareness about Nuclear risk, climate change, and disruptive technologies. Visit the store.

Bulletin initiatives

The AI Power Trip

The AI Power Trip

Read more
View of Times Square in New York with a white balloon displaying "Zero Nukes"

Arts + Science Initiative

Man in athletic attire with Bulletin of the Atomic Scientists printed on back of their jersey

Next Generation Initiative

People sit around a roundtable in a conference room with screens in the middle

Pathogens Project

View of Times Square in New York with a white balloon displaying "Zero Nukes"

Arts Science Initiative

Man in athletic attire with Bulletin of the Atomic Scientists printed on back of their jersey

Next Generation Initiative

People sit around a roundtable in a conference room with screens in the middle

Pathogens Project

The Bulletin interactive

Tracking the Trump administration on existential risk

Virtual Tour: Turn Back the Clock

Global Biolabs Map

Nuclear Arsenals of the World

Doomsday Clock Timeline

What's new at the Bulletin

Ethan Beaty headshot with text: Ethan Beaty wins the 2025 Rieser Award

Announcing the 2025 Rieser Award recipient

Alexandra Bell moves the hand of the Doomsday Clock

PRESS RELEASE: It is 85 seconds to midnight

The Bulletin welcomes 2026 board fellows

Don't miss an update

Subscribe to receive email updates
Subscribe to the premium magazine
Subscribe to our YouTube channel
Follow us on Facebook

Support our nonprofit's mission

Donate now