The Baker test during Operation Crossroads, a series of two nuclear weapons tests conducted by the United States at Bikini Atoll. 25th July 1946. The purpose of the operation, which included two shots, ABLE and BAKER, was to investigate the effect of nuclear weapons on naval warships. Mushroom-shaped cloud and water column from the underwater Baker nuclear explosion. Photo taken from a tower on Bikini Island, 3.5 miles (5.6 km) away. Marshall Islands, Pacific. (PHoto by Galerie Bilderwelt/Getty Images)
