Scientists demonstrate a communications method that hides data in natural heat radiation, making transmissions invisible to snoopers.

GENEVA (Reuters) - Spikes in radiation caused by the Fukushima nuclear accident were below cancer-causing levels in almost all of Japan and neighbouring countries had levels similar to normal ...

A new Massachuesetts Institute of Technology (MIT) study, released May 15, reports that background radiation levels more than 100 times normal background levels show no DNA damage in mice, whose ...

The cesium-137 inside emits about 2 millisieverts per hour, which is the same dose as 10 medical X-rays or an entire year of normal background radiation at sea level. Share on Facebook (opens in a new ...