In 1989, the Komsomolets sank off the Norwegian coast. Four years later, the BBC reported on plans to seal in its torpedoes' toxic plutonium.

Add Yahoo as a preferred source to see more of our stories on Google. (Craig Taylor/iStock/Getty Images Plus) A sprinkling of radioactive plutonium atoms hidden in the ocean floor may trace back to a ...

Debris is still raining down on Earth more than 100 million years after the giant cosmic explosion that created it. A study published this week in Nature Astronomy by an international team reached ...

Editor’s note: This is a response to an article by Sasan Karimi, titled “Beyond alarmism: A realistic assessment of Bushehr’s plutonium risk,” which itself was a response to an article by Henry ...

An accident at the lab that produces America’s nuclear bomb cores could lead to more fatalities than previously estimated by ...

Despite the cheerful smiles on their faces, history records that the little box killed an estimated 80,000 civilians after it was detonated on August 9, 1945 over Nagasaki. Fat Man was detonated over ...

WASHINGTON, June 15 (Reuters) - (This June 15 story has been corrected to say that Piefer said once plutonium generates power it can no longer be used to make bombs, not that it is no longer dangerous ...