♪ i see them bloom for me and you ♪ (music) ♪ so i think to myself ♪ ♪ oh what a wonderful world ♪ life as we know right now impossible on mars. but what if mars were more like earth? the now former chief scientist at nasa, james green, says it could be possible to terraform mars, make it livable for people, when conjures up the scene from "the martian" when matt damon gets stuck on mars and has to figure out how to survive. >> i got to make water and grow