Manhattan Project scientists working on the Thin Man plutonium gun assembly. Two atomic bombs nicknamed Little Boy and Fat Man were detonated over Hiroshima and Nagasaki in August 1945, effectively ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. The first atomic bomb was ...

On July 16, 1945, the first nuclear bomb exploded in the desert sands of New Mexico under the watchful gaze of Manhattan Project scientists. Known as the Trinity test, the blast marked the beginning ...