Comment Re:First Contact (Score 1) 686
I think it's safe to say that if interstellar travel is at all possible it is monumentally expensive and anyone that expends the resources to get here will be interested in exploiting the rock once they do. Space is teeming with rock but Earth is teeming with organic compounds, food and whatnot. If an alien species is trying to fulfill a biological imperative, like expand the species beyond one fragile ecosystem they would probably show up to take over ours.
It'd be sort of like Independence Day, except without the happy endingl