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Tsar Bomba (Russian: Царь-бомба; "Tsar-bomb") is the nickname for the AN602 hydrogen bomb, the most powerful nuclear weapon ever detonated. Its test on October 30, 1961, remains the most powerful man-made explosion in human history. It was also referred to as Kuz'kina Mat' (Russian: Кузькина мать, Kuzma's mother), referring to Nikita Khrushchev's promise to show the United States a "Kuz'kina Mat'" at the 1960 United Nations General Assembly. Developed by the Soviet Union, the bomb had a yield of 50 megaton TNT (210 PJ). Only one bomb of this type was ever officially built and it was detonated in...