The Cold War saw the creation of some truly wild and destructive weapons systems. While the United States and the Soviet ...

In Christopher Nolan's latest epic movie Oppenheimer, we see Robert Oppenheimer, the so-called "father of the atom bomb," struggling with the moral questions raised by his world-shaking invention. It ...

On October 30, 1961, the Soviet Union tested the largest nuclear device ever created. The "Tsar Bomba," as it became known, was 10 times more powerful than all the munitions used during World War II.

For most of the world, Andrei Sakharov, who was born 100 years ago this week, is remembered as a fearless and tireless champion of human rights and freedoms in the Soviet Union. It was for his work as ...

A newly-declassified video shows the testing of the Tsar Bomba, a nuclear weapon built by the former Soviet Union. The bomb was built in the midst of the Cold War, and only one was ever constructed.

The detonation of the first nuclear bombs over Hiroshima and Nagasaki in August 1945 is seared into our collective memory, and the world has been haunted by the prospect of a devastating nuclear ...