When nuclear accidents happen, many people imagine radiation spreading everywhere and lasting forever. The reality is more ...

Add Yahoo as a preferred source to see more of our stories on Google. When most of us think of radioactivity, we picture abandoned nuclear test sites or disaster zones like Chernobyl. But the ...

Scientists have recorded the highest levels of radiation from a solar storm at aviation altitude in decades, revealing potential threats to aircraft safety. A flare classified as most intense was ...

Radiation levels in Earth's atmosphere rose to the highest level in nearly two decades in November after a rare solar super-flare pummeled the planet with high-speed particles from the sun. The solar ...

10:00 pm EST- In parsing the "bleak" Congressional testimony of Gregory Jaczko, the chairman of the U.S. Nuclear Regulatory commission, earlier today, The New York Times finds his most "startling ...

Workers at a site in South Carolina that once made key parts for nuclear bombs in the U.S. have found a radioactive wasp nest but officials said there is no danger to anyone. Employees who routinely ...

CAPE CANAVERAL, Fla. -- Future moon explorers will be bombarded with two to three times more radiation than astronauts aboard the International Space Station, a health hazard that will require ...

(Reuters) - Male rats exposed to very high levels of the kind of radiation emitted by cellphones developed tumors in the tissues around their hearts, according to a draft report by U.S. government ...

NAVAL AIR FACILITY ATSUGI, Japan — The Navy said very low levels of airborne radiation were detected Tuesday morning at greater Tokyo-area bases in Yokosuka and Atsugi, prompting commanders to ...