The United States is preparing to mine a rare nuclear resource from some of its most dangerous Cold War legacies, turning ...

Getting your Trinity Audio player ready... A soil sample with an elevated level of plutonium taken along the eastern edge of Rocky Flats National Wildlife Refuge is more than five times the cleanup ...

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 ...

With all the media hoopla last week about the Perseverance rover, going almost totally unreported was that its energy source is plutonium—considered the most lethal of all radioactive substances—and ...