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 ...

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 ...

A Cold War icon, the clock conveys scientists’ views on humankind’s risk of destroying itself. Its current setting: just 100 seconds to midnight. The Doomsday Clock, reset each January, remains at 100 ...

Editor’s Note: Professor WERNER HEISENBERG, who was born in Duisburg in 1901, was awarded the Nobel Prize in Physics in 1932 for his work on the quantum theory. A member of the faculty 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 ...