The U.S. altered the course of history 80 years ago when it dropped the atomic bomb on Japan. It was an audacious move that ultimately led to the end of World War II. The motivation and secrecy ...

As tensions escalate in the Iran conflict, the words of J. Robert Oppenheimer — the father of the atomic bomb — have ...

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.

Barbara Scollin, grandniece of Major General Kenneth D. Nichols, continues her series on his life. Ample reasons, most notably leadership skills, personality traits and qualifications, led to choosing ...

Departing in the predawn darkness of Aug. 6, 1945, a modified B-29, designated with radio call sign ‘Dimples 82’, was carrying a single bomb. Enola Gay was about to change the world. Approximately a ...

Many Americans—including students in the History of the Atomic Bomb course taught at the University of Texas at Austin by Bruce J. Hunt, A&S '84 (PhD)—have learned a version of this story: On Aug. 6, ...

Here’s a look back at what happened in the Chicago area on Aug. 6, according to the Tribune’s archives. Is an important event missing from this date? Email us. A cluster of balloons are released from ...

Maj. Gen. Kenneth D. Nichols was a key figure in developing U.S. atomic policy during the early Cold War. Tensions between Nichols and AEC Chairman David Lilienthal over atomic weapons production were ...

Editor’s note: The Bulletin of the Atomic Scientists presents here, from its September 1946 issue, an eyewitness account of the first atomic bomb test in the Marshall Islands. In it, the author not ...