Tsar Bomba the most powerful nuclear weapon ever detonated. Its October 30, 1961 test remains the most powerful artificial explosion in human history. It was also referred to as Kuz’kina Mat’ referring to Nikita Khrushchev’s promise to show the United States a “Kuz’kina Mat'” at the 1960 United Nations General Assembly. The famous Russian idiom, which has been problematic for translators, literally meaning “to show somebody Kuzka’s mother”, equates roughly with the English “We’ll show you!” Developed by the Soviet Union, the bomb had the yield of 50 to 58 megatons of TNT (210 to 240 PJ). Only one bomb of this type was ever officially built and it was tested on October 30, 1961, in the Novaya Zemlya archipelago, at Sukhoy Nos.
The remaining bomb casings are located at the Russian Atomic Weapon Museum.
Wooden houses within hundreds of miles of the explosion were destroyed and radio communication in the area was down for an hour.