when did the soviet union exploded its first atomic bomb
Soviet atomic bomb project On 29 August 1949, the Soviet Union secretly conducted its first successful weapon test (First Lightning), based on the U.S. design at the Semipalatinsk in Kazakhstan.[2]
Tsar Bomba Tsar Bomba (Russian: Царь-бомба; "Tsar-bomb") was the Western nickname for the Soviet RDS-220 hydrogen bomb (code name Ivan[3] or Vanya), the most powerful nuclear weapon ever detonated. Its test on 30 October 1961 remains the most powerful man-made explosion in history. It was also referred to as Kuzkina mat (Russian: Кузькина мать; "Kuzma's mother"),[4] possibly referring to Nikita Khrushchev's promise to show the United States a Kuzkina mat (an idiom roughly translating to "We'll show you!") at a 1960 session of United Nations General Assembly.[5][6]