Comment Re:All-Male Cast? (Score 1) 201
Consequences of pregnancy. It is highly likely that any long term space mission would be single sex. A pregnant astronaut is just as much of an issue as a dead astronaut on a mission to Mars.
Sure there are contraceptives/surgery, but life has found a way in past, and it simply wouldn't be worth the risk.
In addition going beyond the phsyical having a mixed crew for such a long duration introduces even more potential psychological factors that can result in failure of the mission.