If we promise that people who want to go to Mars have to serve a year on a refuge-submarine, there will be a lot of volonteers - and we could choose the best.
Or we could collect the crews the same way as military crews are collected—combining prestige and salary.
If we promise that people who want to go to Mars have to serve a year on a refuge-submarine, there will be a lot of volonteers - and we could choose the best.
Or we could collect the crews the same way as military crews are collected—combining prestige and salary.