Reporting from Richland, Wash. — As crews demolished a shuttered nuclear weapons plant during 2017 in central Washington, specks of plutonium were swept up in high gusts and blown miles across a ...

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.

Normally, materials expand when heated. Higher temperatures cause atoms to vibrate, bounce around and take up a larger volume. However, for one specific phase of plutonium—called delta-plutonium—the ...

You can hold plutonium in your hand, but it has the potential to destroy entire cities. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Plutonium ...

After a 25-year hiatus, the Unites States has produced its first non-weapons grade plutonium needed to power space probes when solar energy won’t suffice. NASA has been using a radioactive material ...

WASHINGTON – A half-metric ton of weapons-grade plutonium secretly shipped into Nevada has been removed four years early under federal court order and an agreement reached by U.S. Sen. Catherine ...

The U.S. Department of Energy says it will pay South Carolina $600 million for the government’s failure to remove bomb-grade plutonium from a nuclear weapons complex that was stuck with the material ...

A team of scientists has discovered a new, stable form of plutonium – and done so by accident. The famously unstable element is tricky to transport, store and dispose of, but the find could lead to ...

Thorium reactors have long been proposed as a cleaner, safer alternative to conventional nuclear energy, and now a new Russian study has added another potential benefit to the mix. Scientists from ...