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

"Involuntary parks" transform Earth’s most dangerous and contaminated sites into accidental wildlife sanctuaries.

Regional threats and doubts about the reliability of extended deterrence are pushing technically capable non-nuclear states ...

The skin of two workers in Los Alamos National Laboratory’s plutonium facility were contaminated in late November, according ...

The United States is preparing to mine a rare nuclear resource from some of its most dangerous Cold War legacies, turning ...

Nuclear bombs do not rely on size, they rely on physics. Here is how chain reactions and hydrogen bombs unleash power on a city-ending scale.

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

Japan doesn’t seem likely to develop nuclear weapons in the short-term. However, the tensions that triggered this episode are ...

HB 2090 by state Rep. Stephanie Barnard, a Pasco Republican, would ask the Department of Commerce to develop a nuclear ...

Hundreds of Allied prisoners of war were held in Japanese camps in Nagasaki when the U.S. dropped an atomic bomb 80 years ago ...

There’s a terrific resource that is free to anyone who wants to learn more about the history of the site and what the workers ...