[Arkcon]

Well now Gandalf, that just begs the question, "If you have the technology to explore space beyond your own solar system, why do it?" You shouldn't be short of natural resources if you can do it, there should be abundant living space in your own system, you pretty much do it just to see whats out there. If there's sapient life on Titan, we've save them the trouble of starting a SETI program, at least.

I have SE4 inspired question now. Often, when you start a game, you find a system with one of those nice green star planets. Our solar system seems to lack that.

But if there was another rock oxygen planet here, how close would we be to establishing a colony? We don't have near the technology now, but if we had the incentive, would we be closer, or be there already?