SECOND WORLD WAR 8 MCT

At the time this photo was made, smoke billowed 20,000 feet above Hiroshima while smoke from the burst of the first atomic bomb had spread over 10,000 feet on the target at the base of the rising column.Two planes of the 509th Composite Group, part of the 313th Wing of the 20th Air Force, participated in this mission, one to carry the bomb, the other to act as escort, August 6, 1945 (National Archives/MCT)