The Tsar Bomba, the largest and most powerful nuclear weapon ever detonated, remains an iconic and terrifying testament to the destructive power of nuclear energy. Developed by the Soviet Union during ...

On October 30, 1961, the Soviet Union tested the largest nuclear device ever created. The "Tsar Bomba," as it became known, was 10 times more powerful than all the munitions used during World War II.

RDS-37 was the Soviet Union's first two-stage hydrogen bomb, first tested on November 22, 1955. The gun was rated at about 3 megatons. For the test, it was scaled down to 1.6 megatons.

Detonated by the Soviet Union in 1961, the Tsar bomb created a 50 megaton explosion — nearly 1,500 times more powerful than the atomic bombs dropped on Hiroshima and Nagasaki combined, ...

By 1955, the Soviet Union had detonated their first hydrogen bomb. And even though Soviet Premier Nikita Khrushchev had observed in 1959 that “the explosion of one hydrogen bomb releases more ...

It was hard to reconcile Andrei Sakharov’s shy, soft-spoken manner with his fame as the “father of the Soviet hydrogen bomb.” In late 1979, my companion Lies van Veen and I knocked on a ...

The Soviet Union detonated its first atomic bomb, known in the West as Joe-1, on Aug. 29, 1949, at Semipalatinsk Test Site, in Kazakhstan. The Soviets called their first atomic test "First ...

The A-Bomb wasn't just tested by the U.S., as it was infamously used twice against an enemy combatant — the only times to date that nuclear weapons have been used in war — when it was dropped ...