Nuclear weapons haven’t been tested in the United States since 1992. Find out why, and what could happen if the hiatus ends.

Beijing releases 30-page report that includes a call for international community to ‘take concrete and strong measures’ ...

The US nuclear facility at Hanford, which turns radioactive waste into glass as part ...

SEATTLE(AP) — For much of the 20th century, a sprawling complex in the desert of southeastern Washington state turned out most of the plutonium used in the nation’s nuclear arsenal, from the first ...

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 ...

(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 ...

MINSK, 27 October (BelTA) - Russian President Vladimir Putin has signed a law terminating the agreement with the United States on the disposal of surplus weapons-grade plutonium, TASS reports. In ...

The lab where Oppenheimer developed the atomic bomb is the linchpin in the United States’ effort to modernize its nuclear weapons. Yet the site has contended with contamination incidents, work ...

Nuclear weapons represent the pinnacle of military danger, capable of instantly wiping out millions and reducing cities to dust. While the term "atomic bomb" often refers to a basic fission device, ...

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 ...