In this except from the biography of J. Robert Oppenheimer, we hear from the people at the historic first test of the atomic ...

Claim started as satire. The claim that a 14-year-old created an atomic bomb as her science project first appeared on the satirical site World News Daily Report in an article with 358,000 Facebook ...

The dropping of the atomic bomb on Hiroshima, Japan, effectively ended WWII, but took thousands of civilian lives. On August 6, 1945, the bomb was dropped on the city.

The atomic bomb was dropped in Hiroshima, Japan on Aug. 6, 1945, during World War II. A second bomb was dropped in Nagasaki three days later. The bombs forced the nation's surrender.

Mrs. Katherine Oppenheimer, widow of the late Robert Oppenheimer who helped develop the atomic bomb, in a 1958 photo. Actress Emily Blunt plays her in the biopic "Oppenheimer." AP Photo, File ...

The United States dropped the world's first atomic bomb on Hiroshima on Aug. 6, 1945, destroying the city and killing 140,000 people. The United States dropped a second bomb three days later on ...

After the first atomic bomb explosion (seen here from 10,000 yards away, in a time series from .006 seconds to .081 seconds after detonation), Oppenheimer recalled, "a few people laughed, a few ...

Seventy-five years ago today, on Aug. 6, 1945, the world erupted into a new era. A single B-29 Superfortress airplane, nicknamed Enola Gay, dropped a new kind of weapon—an atomic bomb—on the ...

Adapted from Kai Bird and Martin J. Sherwin's award-winning 2005 biography, "American Prometheus: The Triumph and Tragedy of J. Robert Oppenheimer," this $100 million movie stars Cillian Murphy in ...