In 1961, the Soviet Union detonated Tsar Bomba—a 50-megaton hydrogen bomb that remains the most powerful explosion in human history. The blast was 3,800 times stronger than Hiroshima, shattered ...

Add Yahoo as a preferred source to see more of our stories on Google. US bomber Boeing B-29 Superfortress, the same as those which dropped the atomic bombs on Hiroshima and Nagasaki, heading to bomb ...

The first reports were met with disbelief. A single bomb with the explosive force to level a city; a bomb, detonated with such intensity it burned as bright as — maybe, even brighter than — the sun.

Declassified records from the early 1970s show that 38 towns and cities across the UK were identified as probable nuclear targets during contingency planning for a potential conflict with the Soviet ...

Inuit and their dog team stand in front of a U.S. military radar installation at Thule, Greenland, that scanned the skies for Soviet bombers and missiles during the Cold War. More than 100 native ...