The first nuclear bomb was tested at the Nevada Test Site on January 27, 1951. The Nevada Test Site is located 65 mi northwest of Las Vegas. The series of test was called Operation Ranger it was the fourth American nuclear test. The nuke shot was called  ‘Able’ and it was the first air-dropped nuclear device to be exploded on American soil. The test took place on Frenchman Flat, a dry lakebed in the Nevada Test Site (site 5). The .5-kiloton explosion was the first series to be carried out at the Nevada Test Site. The bomb was dropped by B-50 bombers and exploded in the open air over Frenchman Flat (Area 5).

Photo:  Department of Defense

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