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

SLBM

United Kingdom nuclear weapons, 2024

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

Can minimum deterrence save nuclear arms control?

By Stephen J. Cimbala, Lawrence J. Korb | Analysis, Nuclear Weapons

Nuclear Notebook: Israeli nuclear weapons, 2022

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

DF-41 ICBM launchers at parade in Beijing in September 2020. The DF-41 is now operational in at least two brigades. Source: Chinese Ministry of Defense

Nuclear Notebook: Chinese nuclear forces, 2021

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

Nuclear submarine HMS Vanguard arrives back at HM Naval Base Clyde, Faslane, Scotland following a patrol. Photo: CPOA(Phot) Tam McDonald/MOD accessed via Wikimedia Commons. Open Government License version 1.0.

Nuclear Notebook: How many nuclear weapons does the United Kingdom have in 2021?

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

Detail from a report, "MX Missile Basing," issued im 1981 by the US Office of Technology Assessment.

Deep thoughts: How moving ICBMs far underground will make the whole world safer

By Ivan Oelrich | Nuclear Weapons

Nuclear notebook: Chinese nuclear forces, 2020

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

North Korea’s military parade on October 10, 2020

After the parade, North Korea’s steady progress matters more than its big new missile

By Jenny Town | Analysis, Nuclear Weapons

A Chinese intercontinental ballistic missile at a 2015 military parade in Beijing. China may be a source for other governments wishing to buy missiles. (Photo credit: Voice of America via Wikimedia Commons.)

Chinese nuclear forces, 2019

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

Nuclear subs. Sea lions. Massive bags of money.

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

Chinese nuclear forces, 2018

By Hans M. Kristensen, Robert S. Norris | Nuclear Notebook, Nuclear Risk, Nuclear Weapons

Worldwide deployments of nuclear weapons, 2017

By Hans M. Kristensen, Robert S. Norris | Nuclear Notebook