RDS-220 / “Big Ivan” (TSAR BOMBA) Test
On the morning of October 30, 1961, Humanity witnessed the largest explosion caused by man. The force released was the equivalent of 50,000,000,000 kg of TNT, even though its load was cut in half to avoid excessive global radioactive contamination. This mega bomb marked the end of the crazy nuclear race that seemed to have no end. 22 months later, in August 1963, the USRR and the USA signed a Partial Nuclear Test Ban Treaty that limited to some extent the tests carried out since then.
RDS-220 / “Big Ivan” (TSAR BOMBA) Test gallery and more info