On August 6, 1945, a 10-foot-long uranium bomb called "Little Boy" was dropped on the Japanese city of Hiroshima.

In 1962, the United States detonated a nuclear bomb 400 kilometers above Earth in one of the most dangerous Cold War ...

For thousands of years the Moon has fueled myths, guided ships across open water, and lit up night skies without fail. During ...

On August 6, 1945 — 81 years ago — the US bomber Enola Gay dropped the first atomic bomb ever used in military combat on the city of Hiroshima, Japan.

The extreme conditions of atomic bomb explosions create “uncontrolled microexperiments” that, in Hiroshima, forged a never-before-seen metallic alloy ...

HIROSHIMA, Japan — More than 50,000 people gathered at this city’s Peace Memorial Park on Thursday to remember the victims of the world’s first atomic bombing and hear a renewed appeal for world ...

Add Yahoo as a preferred source to see more of our stories on Google. The scene of destruction after the atomic bomb was dropped on Hiroshima, Japan, in 1945.Universal History Archive/Universal Images ...

The scene of destruction after the atomic bomb was dropped on Hiroshima, Japan, in 1945.Universal History Archive/Universal Images Group via Getty Images On August 6, 1945, a 10-foot-long uranium bomb ...