We were doing things for the Mars missions just before I retired, so things are in the works. I'm sure actually seeing humans on Mars will not be until the 2020's, but thats not a long time when new programs are being developed. I understand they have been testing with confining people in small places for long periods already. Question is, once someone has suceeded in that training, can they muster up the intestinal fortitude to do it all over again for real. Once you are on the way, no turning back, and what happens if someone goes bonkers 1/2way?
NASA played a big part in the daily plan and routine that they had the Chilian miners go though, becasue they knew they would be confined quite a lone time. I still can't imagine how they did it. How do you overcome that feeling of being trapped, either in a mine or small space capsule, that can not return. Takes a special breed of person, I'm sure not one of them.