Anyone who has read the Lunar520 story produced as last year’s Novel In A Day (http://www.pigfender.com/index.php/2012/10/lunar520-niad-2012/) will be aware of some of the dangers of spending a long time locked in space with other people.
Still, the idea of going and living on Mars is really cool, and now you can actually apply to go. The Mars One project is planning to send up some people in 2023 and is accepting applications from anyone who would like to go!
I’d personally be pretty tempted except for one small thing: Have a look through some of the applicant videos on the Mars One website (http://applicants.mars-one.com/). Forget the hostile environment. Forget the fact that it’s a one-way ticket. Can you imagine having to spend the rest of your life living with any of these people?