Sex in Space. So, what's the expert scientific opinion on who should be sent on a Mars trip? According to Peter Bond, "a British expert on space matters" (link via Drudge):

"[T]he ideal Mars mission would have - in Star Trek terms - two Mr Scotts and two Mr Spocks, and definitely no Captain Kirks, or Mr Sulus, or Dr McCoys. You need the Scotts to do the engineering stuff, and the Spocks to do the science. You don't need a Kirk because all he does is issue orders - and kiss any woman in sight."