A Weapon Beyond Imagination In October 1961, the Soviet Union detonated a bomb so powerful that its shock waves circled ...

As the world marks the 80th anniversary of the first use of a nuclear weapon, on the Japanese city of Hiroshima near the end ...

How has the nuclear bomb developed since 1945? Nicknamed ‘Little Boy’, the bomb dropped on Hiroshima exploded some 1,800 feet above the city, where it delivered around 12.5 kilotons of TNT.

The Hiroshima bomb is the most devastating to have been used in real combat. But today’s nuclear weapons are far, far more ...