On August 6, 1945, the sky above the Japanese city of Hiroshima opened. A blinding flash, then a deafening sonic boom. An entire city pulverized in seconds. Thus began the nuclear age. Today, 80 years ...

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THE experimental study of atomic spectra has a long and distinguished history. Even the descriptive analysis of spectra in terms of series and term values the systematic botany of spectra has a ...

The movie “Oppenheimer,” telling the story of Julius Robert Oppenheimer, the physicist who helped develop the process of controlled nuclear fission and later was put on trial for treason as a ...

Seventy-five years ago in summer 1945, the United States' plans for unleashing its atomic bombs went beyond Hiroshima and Nagasaki. Focusing his gaze on Japan, Maj. Gen. Leslie R. Groves, head of the ...

The 1945 Trinity test produced heat 10,000 times greater than the surface of the sun and spread fallout across the country. Tina Cordova and her mother, Rosalie, relax at Bonito Lake, New Mexico, in ...