Email notifications are only sent once a day, and only if there are new matching items. A congressional commission foresees eventually replacing Los Alamos National Laboratory’s plutonium facility — ...

Opinions differ on whether the half ton of weapons-grade plutonium secretly shipped by the U.S. government to the Nevada National Security Site could impact residents’ health and the environment.

More plutonium is targeted for disposal at the Savannah River Site as concerns rise about an existing stockpile of the radioactive material already on the weapons complex. Nearly a ton of plutonium, a ...

Plutonium may be the most feared and fearsome substance in the entire periodic table. It's best known as the main ingredient of atomic bombs like the infamous Fat Man, dropped on Nagasaki on 9 August ...

For historical reasons, plutonium brings to mind nuclear weapons. Jan Hartmann brings another side of element 94 to attention, which features an upcoming trip to its eponymous celestial body.