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

warheads

W76 warhead life extension

How Biden can achieve a first in arms control: A verifiable nuclear warhead freeze

By James E. Doyle | Nuclear Weapons

Russian nuclear forces, 2014

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

Global nuclear weapons inventories, 1945-2013

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

Russian nuclear forces, 2013

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