Las Vegas Sun

April 28, 2024

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Atomic Testing

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The Priscilla nuclear bomb is detonated over Frenchman Flat on June 24, 1957. The test was one of a series of controversial nuclear tests codenamed Operation Plumbbob. The 37 kiloton bomb was detonated at 700 feet above the valley floor via hot air balloon. Operation Plumbbob sought to take advantage of the nuclear tests with training exercises, war games and lectures for military personnel on how the atom bomb would change the way wars would be fought, culminating in the actual explosions every 5 days during the late spring and summer of 1957.