The Hanford Tank Waste Treatment and Immobilization Plant was built to turn that nuclear waste into glass; it started ...

LOS ALAMOS — A sphere of plutonium the size of a grapefruit contains enough energy to erase an entire city from existence. That single fact explains why nuclear weapons remain humanity’s most feared ...

Canada’s former top soldier says we need to consider developing nuclear weapons in the name of strategic independence. But that will have massive costs ...

The United States is preparing to mine a rare nuclear resource from some of its most dangerous Cold War legacies, turning aging plutonium waste into fuel for reactors and power for spacecraft. The ...

Hydrogen bombs cause a bigger explosion, which means the shock waves, blast, heat and radiation all have larger reach than an atomic bomb, according to Edward Morse, a professor of nuclear engineering ...

Editor’s Note: An earlier version of this report stated this was the first time a worker who had inhaled plutonium was speaking publicly. Since then, we have learned that the Seattle Times spoke with ...

America’s last nuclear detonation was nothing special. Smaller than the bomb that killed 73,000 people in Nagasaki, it exploded 1,397 feet below the Nevada desert. It shook the ground, created a ...

(Reuters) - North Korea has offered to allow U.N. inspectors back to its nuclear facilities to make sure it is not processing highly enriched uranium, a U.S. state governor said on Tuesday after ...

Six hours into a routine patrol mission over the Arctic, smoke began filling the cockpit of a B-52 Stratofortress carrying four hydrogen bombs. Captain John Haug and his crew fought to reach Thule Air ...