All times in UTC ·
Dashed edge = started before, or continues beyond, this day
Events on Monday 30 October 1961 1
1961Tsar Bomba detonatedLargest nuclear weapon ever testedThe Soviet Union detonated Tsar Bomba over Novaya Zemlya, a roughly 50-megaton hydrogen bomb that remains the most powerful nuclear device ever exploded. The test dramatically escalated Cold War fears about the scale of the nuclear arms race.