Last year, scientists announced they'd found a rare type of plutonium at the bottom of the Pacific Ocean. This plutonium is believed to have come from an exploding star. NPR's Nell Greenfieldboyce ...

Two conflicting developments arose this month in US efforts to produce new plutonium pits for its nuclear weapons: The National Nuclear Security Administration (NNSA) announced it had produced a ...

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 ...

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

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 ...

As the fuels of the space and atom age get more powerful, they also get harder to handle. Last week General Bernard Schriever, new chief of the Air Forces Research and Development Command, announced ...

Common chemical elements are created in stars like our sun. But heavy elements, like iron, are thought to form in massive stars that explode and spew material — though it might be more complicated.

Traces of rare forms of iron and plutonium have been found at the bottom of the Pacific Ocean, after some kind of cataclysm in outer space created this radioactive stuff and sent it raining down on ...

Something went boom in outer space and sent radioactive stardust our way, and it's just been found at the bottom of the ocean. Traces of rare forms of iron and plutonium have been found at the bottom ...