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 ...

Plutonium (Pu) exhibits one of the most diverse and complex chemistries of any element in the periodic table. Since its discovery in 1940, scientists have synthesized and studied many different types ...

The Trump Administration has initiated a controversial program to provide weapons-grade plutonium to Sam Altman, CEO of OpenAI and an investor in the nuclear startup Oklo. This initiative aims to ...

The site will process aging plutonium pits to create new ones, generating hazardous and radioactive waste in the process. Some members of the public and a former citizens' advisory board chair ...

The Trump administration is considering a proposal to divert plutonium that plays a central role in the U.S. nuclear weapons stockpile to fuel a new generation of power plants, according to an Energy ...

The Department of Energy is accelerating construction of the new facility, aiming to produce 50 plutonium pits annually by 2030. While production ramps up, concerns remain about existing radioactive ...