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.

And all this came from a 1.4 megaton bomb. Tsar Bomba, which was the largest nuclear bomb that has ever been detonated, was 50 megatons. So what would happen if we detonated that above the United ...

The flash of light from the blast was visible up to 620 miles away. The Tsar Bomba, as the test was ultimately known, had a yield between 50 and 58 megatons, twice the size of the second largest ...