Mars500 Crew Finally Freed

More than 500 days of isolation with five other guys ... could you do it? That is what one Chinese man, two European and three Russian men have been through to simulate what humans might encounter if they attempted to venture to Mars. They have missed seasons and friends and for one so-called "simulnaut" - a new wife.

The mock Mars mission ended and the crew emerged into the daylight in Moscow today after 520 days crammed inside a windowless capsule the size of a schoolbus.    Full Read