Joint Interagency Task Force 401 said its tests are meant to alleviate worries about how the lasers are used and to ...

Resuming full testing of nuclear weapons - as President Donald Trump called for last week - would be unnecessary, costly, undermine nonproliferation efforts, and empower the nation's adversaries to ...

Anduril, in announcing the first flight of its YFQ-44A in October 2025, said it had started weapons integration tests. Over 2026, the company expects to execute the first live shot of a weapon, ...

The testing of nuclear weapons is suddenly a major topic of discussion after being largely dormant for three decades. Last week, Russia tested a nuclear-powered missile, but did not detonate an actual ...

Scientific knowledge about the damaging effects of nuclear-weapons testing helped to end such tests. Those findings haven’t changed.