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 ...

Editor’s note: If you’d like to pinpoint the instant when the world entered the nuclear age, 5:29:45 a.m. Mountain War Time on 16 July 1945, is an excellent choice. That was the moment when human ...

Add Yahoo as a preferred source to see more of our stories on Google. Nearly 81 years ago, the first nuclear bomb exploded. The Trinity test, conducted as part of the Manhattan Project in the New ...

On March 1, 1954, the U.S. detonated the Castle Bravo thermonuclear bomb, causing unexpected fallout. The blast's radioactive debris contaminated Rongelap Atoll, exposing locals to dangerous radiation ...