Despite danger for Japan nuclear workers, radiation sickness not yet a threat. March 17, 2011— -- As the situation at Japan's nuclear reactors continues to deteriorate, many in Japan and around ...

Space is a harsh environment. We’re all familiar with the big risks from television – asteroids, solar flares, lack of air, extreme temperatures, and the occasional testy alien ships. What we don’t ...

When we hear the word “radiation,” a certain image tends to pop up: toxic green barrels, blinking hazard signs, post-apocalyptic sci-fi vibes. But radiation didn’t arrive with nuclear power plants or ...