As the cloud cleared, Air Force bombers dropped in to gather air samples. Researchers hoped that the radioactive fallout ...
In 1961, the Soviet Union detonated the most powerful nuclear weapon ever built. Known as Tsar Bomba, the explosion was over ...
Not What You Think Official on MSNOpinion
Why the world’s most powerful nuclear bomb was never meant to be used
The Soviet Union built the largest nuclear weapon ever detonated, but just before its test, engineers deliberately reduced ...
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