Find out just how close the Nazis came to building atomic weapons during World War II, and view the only known diagram of a German nuclear bomb.

Monument to the Splitting of the Atom. Chelyabinsk City, Russia May 18, 1992. A remarkable Soviet-era monument lies on the outskirts of the formerly secret city of Chelyabinsk.It features a ...

But then also, in that moment of 2015, 2016 when I first went there, as the Trump election was happening, as all of these new forms of U.S. conservatism were becoming more and more visible, I ...

Historians recently uncovered another Soviet spy in the U.S. atomic bomb program. Fresh disclosures show he worked on the device’s explosive trigger. By William J. Broad Last fall, a pair of ...

A Long Island family sits in a "Kidde Kokoon" underground bomb shelter in 1955. Photo by Underwood Archives / Getty Images. The Russian invasion of Ukraine isn’t the first conflict to unfold on ...

During the 1940s, in parallel with the atomic bomb's development, the Danish physicist Niels Bohr was working on the new science of quantum mechanics, a discipline with some profound implications ...

On Aug. 6, 1945, the city of Hiroshima in western Japan became the site of history's first nuclear attack when U.S. warplanes dropped an atomic bomb.

The US Air Force plans to bring the Pacific island airfield that launched the atomic bombings of Japan back into commission as it tries to broaden its basing options in the event of any ...