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 ...

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

FILE - A caution sign is shown on a road on the Hanford Nuclear Reservation on June 2, 2022, in Richland, Wash. (AP Photo/Ted S. Warren, File) SEATTLE (AP) — For much of the 20th century, a sprawling ...

SEATTLE – 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 atomic ...