
In 1961, a Soviet test over Novaya Zemlya detonated a 50-megaton hydrogen bomb called Tsar Bomba whose mushroom cloud reached 64 kilometres into the sky and whose flash was visible from roughly 1,000 kilometres away, still the largest explosion humans have ever produced
On 30 October 1961, the Soviet Union detonated a 50-megaton hydrogen bomb over Novaya Zemlya — a mushroom cloud that climbed 64 kilometres and a flash visible 1,000 kilometres away. More than six decades later, Tsar Bomba is still the largest explosion humans have ever produced.













