I've been reading Terry Winters: Paintings, Drawings, Prints 1994-2004 in advance of the show of his work at IMMA coming up in a week or so. The book includes some pages from Winter's notebooks where he has pasted in found photos. One of the pages includes photographs of atomic bomb explosions (pictured above and below).
The photographs were taken by Harold Edgerton at night with an extremely fast a shutter speed and a special 10 feet long lens which was set up in a bunker 7 miles away. These 3 pictures show the first 3 milliseconds of an atomic bomb detonation. The bomb was at the top of a steel gantry anchored to the desert floor.