The world’s first nuclear explosion occurred on July 16, 1945, when a plutonium implosion device was tested at a site located 210 miles south of Los Alamos on the barren plains of the Alamogordo Bombing Range, known as the Jornada del Muerto (Journey of the Dead Man). Inspired by the poetry of John Donne, J. Robert Oppenheimer code-named the test Trinity. Hoisted atop a 100-foot tower, the plutonium device, or Gadget, detonated at precisely 5:30 a.m. over the New Mexico desert.
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