Astrobiology Magazine has a great article on the European Space Agency looking to recruit people for a mission to Mars. They want to send a manned mission to search for biological evidence that Mars once had life.
They feel there may be a wealth of archaeological information to be had that robotic explorers are unable to search for.
The people chosen to participate will have to be sociologically evaluated. Because they will be on board a two year round trip.
This is a big ask upon any individual - the waiting time in a small space capsule while it made such a journey is very daunting to say the least. Once there, the work begins in earnest, but the depressing thought of an equally long journey back must be horrendous. For the complete article; click the link below.
Volunteer for Mars | Astrobiology Magazine