" On October 30, 1961, the Soviet Union detonated the largest, most powerful nuclear weapon the world had ever known. Called the Tsar Bomba, the hydrogen bomb had an unbelievable yield of fifty megatons, roughly ten times the amount of all the explosives used in seven years of war during World War II, including both nuclear bombs dropped on Hiroshima and Nagasaki. "

― Annie Jacobsen , Area 51: An Uncensored History of America's Top Secret Military Base