Even with the reduced yield, it was still three times more potent than all the explosives deployed in World War II combined, including the atomic bombings of Hiroshima and Nagasaki. Tsar Bomba was ...

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 ...