50 Megaton Tsar Bomba Declassified • Ivan RDS-220 Hydrogen Bomb

Subscribe to Nuclear Vault Credit: Rosatom State Atomic Energy Corporation The Soviet RDS-220 hydrogen bomb (code name Ivan or Vanya), also known as Tsar Bomba (Russian: Царь-бо́мба, tr. Tsar’-bómba, IPA: [t͡sarʲ ˈbombə], lit. ’Tsar bomb’), was the most powerful nuclear weapon ever created and tested. Tested on 30 October 1961 as an experimental verification of calculation principles and multi-stage thermonucl