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.

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

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 ...

Alarmingly high levels of plutonium-239 have been detected at the long troubled former Hunters Point Shipyard, prompting the San Francisco Department of Public Health to warn community groups about ...

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

Read full article: New 90-foot mural unveiled under the Fuller Warren Bridge, home to the Riverside Arts Market Crash on I-95 northbound near International Golf Parkway. Traffic Alert: All lanes ...