Every time I hear someone mention colonizing Mars, I think of this (rocking) song. Keep the cc lyrics on, and listen to it twice for the best experience.

And here we are, the red planet Craters cross the skyline A sleep sack in a bivouac And a Kerouac sense of time Oh, and we think about the old days Of green grass, sky and red wine Should’ve known, so fragile Avoided this one-way flight