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 Tsar Bomba, as the test was ultimately known, had a yield between 50 and 58 megatons, twice the size of the second-largest nuclear blast. A bomb of this size would create a fireball 6.4 square ...

The Tsar Bomba, as the test was ultimately known, had a yield between 50 and 58 megatons, twice the size of the second largest nuclear blast. A bomb of this size would create a fireball 6.4 square ...

Photo: Atomic bomb test explosion in Alamagordo, New Mexico, July 16, 1945. AP/Wide World Photos In 1932, James Chadwick discovered the neutron, a small atomic particle with mass but no charge.

Russia is reportedly holding nationwide drills today to practise evacuating civilians in the event of a nuclear conflict ... with the testing of the Tsar Bomba in 1961. He argued that test ...