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

The printing press, light bulb, internal combustion engine and computer moved the world into a mostly better future.

Eighty-one years ago, the United States dropped the atomic bomb on Hiroshima on August 6, 1945, and on Nagasaki on August 9, ...

A 1-megaton nuclear explosion detonated near a 160-meter asteroid produced damage and motion consistent with the object ...

The claim that Britain’s nuclear weapons makes us safe – the myth that this government like every other before it continues ...

The atomic bomb dropped over Hirsoshima vaporized buildings, metals, soil, water, and people, and about 70% of the city's structures were destroyed, killing an estimated 140,000 residents.

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

The Manhattan Project produced the plutonium that changed history, but left behind a radioactive legacy America is still ...

These weren't concepts that lived only on paper. Every weapon on this list reached at least the prototype or testing stage.