'Gadget' the first atomic bomb explodes at Alamogordo New Mexico on July 16 1945 The successful test cleared the way for use of a nuclear device...
{"Image ImageDescription": "'Gadget', the first atomic bomb explodes at Alamogordo, New Mexico, on July 16, 1945. The successful test cleared the way for use of a nuclear device against Japan at the end of World War II. (Photo by ? CORBIS/Corbis via Getty Images)"}