A recent Chinese military study reported on Sunday says using three precision-guided warheads is more effective at destroying underground hard targets than a single bunker-buster bomb, such as those dropped on Iranian nuclear facilities on June 22 by B-2 ...

The Soviet Union detonated the most powerful nuclear weapon in the history of humankind, the Tsar Bomba, on October 30, 1961. Codenamed ‘Ivan’ by its creators, it was tested over Novaya Zemlya, a remote Arctic archipelago.

It was 80 years ago on July 16 when a mysterious flash of light and a massive explosion rumbled in the New Mexico desert. Only a few people knew about it at the time, but the United States just entered a frightening unknown world: the age of nuclear weapons.