Cosmic Rays Might Be Giving Astronauts Space-Alzheimer's

Here's some bum news for anyone harboring romantic notions about outer space: even if a manned trip to Mars is possible, it'll kind of melt your brain in the process. Researchers examining the effects of radiation on brain degeneration have uncovered what they believe is a link between cosmic rays and accelerated… » 1/01/13 12:00pm 1/01/13 12:00pm