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

sea-launched cruise missile

Memo to Trump: Cancel the sea-launched nuclear cruise missile

By David Kearn | Nuclear Weapons

The guided-missile destroyer USS Chafee launches a Block V Tomahawk cruise missile, the weapon's newest variant, during a three day missile exercise. (U.S. Navy photo by Ensign Sean Ianno)

A new nuclear-armed, sea-launched cruise missile: Just say no

By Robert J. Goldston | Analysis, Nuclear Risk, Nuclear Weapons

An unarmed Trident II D5LE missile is launched from a US Navy submarine

Can the US President stop a new nuclear weapon he doesn’t want?

By Stephen Young | Nuclear Weapons

Watch the 2025 Doomsday Clock announcement on January 28