Why Mars One participants are ready for one-way trip?
As it is known, is now a project Mars One, the purpose of which - the base human colonies on Mars. The project is one feature - the ability to return to Earth colonists not envisaged. Maybe someday in the very distant future Martian colonists will be able to return to their home planet, but so far that such a goal is not assigned. However, this feature of the project is not deterred potential participants of the expedition - wanting to get to Mars is much more than is required.
In the first round of selection of volunteers winners out of 700 people. After a while begin the second round , during which will weed most of from the current 700 people. And, if you remember - all these people are willing to die on Mars. How Come? Recently, some volunteers were interviewed by journalists, and a survey was created a documentary (albeit Audio dubbing and subtitles - English only).
Each volunteer must be a generalist - not just a doctor or a mechanic, but also cooking, sanitation, a physicist and a lot of someone else. The versatility of the participants - the key to successful implementation of the mission. There is no doubt that the psychological and physical stress will be very high, and the colonists must be resistant people. Survive - so bad, you need to survive and stay sane and memory.