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

Comprehensive Nuclear Test Ban Treaty

atomic bomb test in Marshall Islands

Project 2025’s stance on nuclear testing: A dangerous step back

By Tom Armbruster | Nuclear Weapons, Opinion

Introduction: Nuclear testing in the 21st century—legacies, tensions, and risks

By François Diaz-Maurin | Nuclear Weapons

Soviet nuclear test, 1949

Preserving the nuclear test ban after Russia revoked its CTBT ratification

By Pavel Podvig | Nuclear Risk, Nuclear Weapons

radiation warning sign in Nevada desert

The logic for US ratification of the Comprehensive Nuclear Test Ban Treaty

By Steven Pifer | Nuclear Risk, Nuclear Weapons

Kim Jong-un and Hwasong-17 ICBM

To do or not to do: Pyongyang’s seventh nuclear test calculations

By Rachel Minyoung Lee | Nuclear Risk, Nuclear Weapons

The nuclear year in review: A renewed interest in nuclear weapons—for and against

By François Diaz-Maurin | Nuclear Energy, Nuclear Risk, Nuclear Weapons

The ban treaty, two years after: A ray of hope for nuclear disarmament

By Alexander Kmentt | Nuclear Weapons, Opinion

A rare spotting of a blue whale tail fluke. Credit: Mike Baird. Accessed via Wikimedia Commons. CC BY 2.0.

Nuclear bomb detectors reveal hidden blue whale population

By Susan D’Agostino | Climate Change, Nuclear Risk, Nuclear Weapons

Nuclear test time-lapse map

Trump apparently wants a nuclear test. It could be bad for your health.

By Sara Z. Kutchesfahani | Columnists, Nuclear Weapons

Craters in the desert at the Nevada National Security Site, 2005

Why a US nuclear test in Nevada would be bad for the world—and Trump’s reelection

By John Krzyzaniak | Nuclear Weapons

Nevada test site

Will the Trump administration’s accusations doom the nuclear test ban treaty?

By Andreas Persbo | Nuclear Weapons

Fake news of a Chinese nuclear explosion got Russian attention

By Matt Field | Disruptive Technologies