Three Ways To Keep Astronauts from Going Crazy In Space

It's hard to imagine anything more unpleasant than being stuck in a metal can millions of miles from home with a crazy person. Space missions to Mars and beyond will need a way to deal with the boredom, isolation and close quarters of long-term space travel, or some unlucky astronauts could find out just how bad space… » 8/15/08 8:00am 8/15/08 8:00am