Recently, footage has circulated on social media that appears to document one of the most unusual nuclear tests of the Cold War: the live detonation of a tactical atomic bomb dropped from a ...

Nuclear weapons tests are among the most violent events humans can trigger, and that violence leaves fingerprints in the Earth, sea, air, and even in orbit. The physics of shock waves, sound, and ...

The State Department’s allegation that China conducted a yield-producing nuclear test in 2020 is reigniting debate in Washington over whether the United States can continue its decades-long moratorium ...