Far more dangerous than U-235 are the elemental products given off when nuclear fuel goes through fission—especially iodine, ...

It’s still kind of hot from when Earth was a big ball of lava, AND there’s a lot of radioactive stuff inside Earth, which heats up the rock and metal.

The rock lover said his father visited Ruggles Mine, New Hampshire, 30 years ago and found a rock that glowed under UV flashlight, so he suspected that it was radioactive. "He took the rock home ...

Britain's Atomic Energy Authority told last week what it is doing with the radioactive wastes from its nuclear reactors: it dumps the worrisome stuff into the ocean 200 miles southeast of ...

Millions of pounds of the radioactive stuff lives in concrete a few hundred feet from the ocean at San Onofre — not the most ideal place — as well as at Diablo Canyon and at scores of other ...

"They are saying this stuff is only a little bit more radioactive than beach sand," he said. "My question is, why are you ...

The remaining substance contains radium, which then off-gases radon (you know, the stuff we were terrified of in the late '80s/early '90s.) Using the slightly radioactive substance in road ...

"They are saying this stuff is only a little bit more radioactive than beach sand," he said. "My question is, why are you taking such drastic precautions if it's that benign?

With approval, it can accept more radioactive stuff, but Browne said the department has never received a request for that. The U.S. Nuclear Regulatory Commission steps in to regulate high-level ...

Sydney Harbour water turns bright green after ‘bucket-full’ of dye gets into waterways. Locals say the water resembled ‘radioactive stuff you see in superhero movies’ ...

A man made a startling discovery after learning the "glow-in-the-dark" rock his grandfather stored under his shed was radioactive. In a post shared to Reddit's r/whatsthisrock, user striking ...