The first atomic bomb was tested 80 years ago at Trinity Site on July 16, 1945. However, most of us are not familiar with the Trinity Site simulation explosion weeks earlier on May 7, 1945. The ...

The Tsar Bomba's explosion was unparalleled in power. With a 50 megaton capacity, this nuclear test was estimated to be 3,800 times the strength of the Hiroshima atomic bomb. And although short video ...

The First Quebec Conference, 1943: (clockwise from top left) Mr Mackenzie King, Winston Churchill, Alexander Cambridge, Earl of Athlone, and President Roosevelt - Bettmann Manhattan, Mayson, Maud. One ...

It's been eight decades since the U.S. dropped atomic bombs on Hiroshima and Nagasaki. The attack on Hiroshima was first. On August 6, 1945 -- 80 years ago today -- the crew of the U.S. B-29 ...

The only man to have survived Hiroshima and Nagasaki atomic bombs dies at 93. TOKYO, Jan. 6, 2010 -- The only person officially recognized as having been twice in the bull's eye of atomic bombs in ...

This oral history is adapted from Garrett M. Graff’s book “The Devil Reached Toward the Sky: An Oral History of the Making and Unleashing of the Atomic Bomb,” which published on Tuesday. Eighty years ...