There are six men currently living in cramped isolation in Moscow, enjoying and suffering 520 days of isolation as the Russian Space Federation simulates the loneliness of a manned flight to Mars. Good thing these guys have a Wii.
Can they make it through 520 days? And what will happen to them in the process? The Russians are testing and you can read all about it at the fascinating Mars 500 site.
The site has lots of photos of the three Russians, the Italian, French and Chinese men who went into isolation in April and get out in October 2011.