Let's be practical. There are only two things that will help the space program. Evidence of existing or ancient life (even molecular is fine), or some precious element (gold or unobtanium). If it's not one of those two things, we'll still have dreary half-assed speeches talking about space exploration, with no real substance. If it's life, expect governments to fuel the research. If it's gold, expect corporations to. I'm hoping for gold, because corporations will do it better and faster, but SAM is looking for organics, so it's probably some CO2 in a piece of rock.