In April 1986, the world faced its worst nuclear disaster when a reactor at the Chernobyl power plant in Ukraine exploded. The aftermath was catastrophic, spewing toxic radioactive material into the ...

The ionizing radiation symbol, featuring three curved blades emanating from a central point, has been used since 1946 to warn workers, scientists and the public of the presence of radioactive material ...

A device containing radioactive material is missing in the Houston area, and authorities said Saturday they want to find it before someone is harmed. The radiographic camera contains radioactive ...

The signs released by the U.S. Army Corps of Engineers warn of "low-level radioactive materials present" near Coldwater Creek in St. Louis. Federal officials plan to post warning signs along a ...

"It does have a radioactive symbol on the side of it, but if somebody were to get into the part of the capsule where the radioactive material is, it's extremely hazardous, like losing fingers ...

A device containing radioactive material is missing in the Houston area, and authorities said Saturday they want to find it before someone is harmed. The radiographic camera contains radioactive ...