Tsar Bomba

In 1961 the biggest nuclear bomb ever detonated exploded at the equivalent of 50 million tons of TNT.
This previously unseen footage of the event has just been declassified and released for the first time.
It was dropped from a TU-95v plane, which even though 75 miles away when the explosion took place, was hit by the shockwave causing it to quickly drop altitude and making control difficult for the pilot for a few minutes.