200,000 people volunteered themselves to take a one-way trip to Mars, these are the stories of some who volunteered. It's a wonderful short documentary (just over 11 minutes wrong) and it's a depressing watch, but worthwhile.
I have a couple of thoughts. People who would actively volunteer for a mission like this might not be right for the job. A lot of these people seem to find socialising difficult and the simple fact is a job like this requires intense co-operation with others.
As a father, I can't understand why anyone would want to leave their children. That thought leaves a strange, horrible feeling hanging low in the pit of my stomach.
If this thing goes ahead, and that's a very big 'if', it's going to be a fascinating social experiment that's for sure.