When mankind lives on another planet -- and it is a matter of when, not if -- will the essential characteristics of humans evolve? Probably not, as suggested by National Geographic’s Mars, beginning its second season Monday, Nov. 12. The new season picks up in 2042, five years after we last saw the astronauts. The action has transitioned from a multicultural mission, an arduous trip of getting to the red planet, to a multicultural colony, and the challenges of living there. The space pioneers have endured deaths, loneliness and misgivings while their physical and mental capabilities were strained to the breaking point. Yet, they adjusted and survived.