The Tsar Bomba’s test was conducted over Severny Island in the Novaya Zemlya archipelago. Once detonated, the resulting explosion was truly the stuff of nightmares.

Following is a transcript of the video. Narrator: Imagine if we detonated a nuclear bomb in space? Actually, you don't have to. You can see it for yourself. That was Starfish Prime — the highest ...

Early on September 22, 1979, satellites picked up an exceedingly bright double flash in the South Atlantic that has never ...