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

Before the Trinity Test in July 1945, some of the world's leading physicists considered an unsettling possibility: could the first atomic bomb ignite Earth's atmosphere? This documentary explores the ...

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

Nuclear reactors and atomic bombs both rely on nuclear fission, but does that mean that a reactor could turn into an atomic ...

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 struggling to clean.

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

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

When the atomic bomb exploded over Hiroshima on August 6, 1945, temperatures near the fireball soared to several thousand degrees Celsius, instantly vaporising or melting concrete, steel, glass and ...

On the morning of December 6, 1917, the city of Halifax, Nova Scotia, was going about its business as a busy wartime port. The First World War was raging in Europe, and Halifax’s harbor was one of the ...

Add Yahoo as a preferred source to see more of our stories on Google. When an atomic bomb detonates, it produces a unique chemical environment that's nearly impossible to mimic in a lab—and amid its ...

Enola Gay, the plane that dropped the atomic bomb on Hiroshima in World War II, is now a museum exhibit.