An on-the-ground investigation in Pennsylvania finds unprotected radioactive material next to a popular bike and walking ...

A new MIT study reveals Russia's Burevestnik nuclear-powered missile could release radioactive material during flight.

(Craig Taylor/iStock/Getty Images Plus) A sprinkling of radioactive plutonium atoms hidden in the ocean floor may trace back ...

The elevator display reads "433", the number of metres below ground. The doors slide open, revealing the entrance to what is ...

The world’s nuclear power plants have produced an estimated 448,000 tonnes (494,000 U.S. tons) ...

Radiation is invisible, and internal exposure can damage the human body if radioactive substances are taken into the body. Regarding such radiation, medical and engineering experts point out that ...

We think of radioactive material as something buried away in bunkers with bombs, power plants, and maybe some exotic medical equipment. But turns out, there are little bits of radiation in the water, ...