The first atomic bomb ... nuclear mushroom cloud. No one commented on the glass at the time—its creation was the least of the Gadget’s spectacular effects—but visitors to the site after the ...

At the end of the Cold War, global powers reached the consensus that the world would be better off with fewer nuclear weapons ...

Nixon and Brezhnev, National Archives Mutually Assured Destruction The key weapon of the Cold War, the nuclear bomb, was never used during that conflict, but the possibility of its use cast a long ...

The “Trinity” test, as it was secretly known, was the first nuclear detonation by the American military, occurring on July 16, 1945. That test resulted in the distribution of radioactive ...

This early assessment by the Central Intelligence Agency shows the C.I.A.'s view that while there was a serious threat from a Soviet atom bomb detonation ... start an all-out war.

No nuclear bombs have been used as weapons since the attacks on Japan, but thousands of tests have been conducted — primarily by the US and USSR throughout the Cold War. Produced by Alex Kuzoian ...