Tsar Bomba was a three-stage device, involving the fusion of hydrogen isotopes. A modified Tu-95 bomber codenamed “Bear” dropped it from the air. On the day the iconic bomb was dropped ...

But it still pales in comparison to the largest man-made explosion ever on Earth - the Soviet Union's Tsar Bomba - King of Bombs - detonated in 1961 in the height of the nuclear arms race.