On July 16, 1945, an enormous column of smoke rose up to 30,000 feet (9,144 meters) high above a remote part of the Jornada Del Muerto Desert, New Mexico, preceded by a tremendous flash that lit up ...

The 80th anniversary of the atomic bombing of Hiroshima and Nagasaki is this week. It was the only time nuclear warheads were used during war. Here’s a look at the history and current U.S. stockpile.