I'm guessing they're going to try and start a colony - but man, looking up/down/at the earth wouldn't you think, I wonder what's going on back on earth? Being stuck on a desolate rock for potentially decades (if all goes well and you survive) sounds like hell to me.
I think you either have to have nothing to live for on earth, or be so dedicated to science and exploration that you would sing up to this. Both brave and tragic at the same time.
Sounds like a Hollywood film.