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

ballistic missiles

A Russian Topol-M mobile missile at a 2012 parade.

Nuclear Notebook: Russian nuclear forces, 2020

By Hans M. Kristensen, Matt Korda | Nuclear Notebook, Nuclear Risk

India's INS Vela submarine

India is building nuclear submarines and ICBMs. That’s a $14 billion mistake.

By Frank O’Donnell, Alexander K. Bollfrass | Analysis, Nuclear Risk

Cool your jets: Some perspective on the hyping of hypersonic weapons

By Ivan Oelrich | Analysis, Nuclear Weapons

Minuteman III missile in silo

United States nuclear forces, 2020

By Hans M. Kristensen, Matt Korda | Nuclear Notebook, Nuclear Weapons

Cool your jets: Some perspective on the hyping of hypersonic weapons

By Ivan Oelrich

Minuteman III missile in silo

Nuclear Notebook: United States nuclear forces, 2020

By Hans M. Kristensen, Matt Korda | Nuclear Notebook, Nuclear Risk, Nuclear Weapons

United States nuclear forces, 2019

By Hans M. Kristensen, Matt Korda | Nuclear Notebook, Nuclear Weapons

Russian nuclear forces, 2019

By Hans M. Kristensen, Matt Korda | Nuclear Notebook, Nuclear Weapons

The French aircraft carrier Charles De Gaulle. Credit: US Navy via Wikimedia Commons.

French nuclear forces, 2019

By Hans M. Kristensen, Matt Korda | Nuclear Notebook, Nuclear Risk, Nuclear Weapons

Indian nuclear forces, 2018

By Hans M. Kristensen, Matt Korda | Nuclear Notebook, Nuclear Risk, Nuclear Weapons

Destruction of North Korea's Punggye-ri Nuclear Test Site. Photo credit: Voice of America

North Korean verification: Good enough for government work?

By Gary Samore | Nuclear Risk, Nuclear Weapons

Nuclear subs. Sea lions. Massive bags of money.

By Lucien Crowder | Nuclear Risk, Nuclear Weapons, What We’re Reading