I was thinking also along the lines of Titan A.E. --a scenario where our planet is blown to bits by aliens.
Still, there's much we don't know about our own Solar System, and it's a start. Besides, think optimistic... something like Star Trek! I'd love to see a future like that!
I'd rather see Space be explored than staying down here on the Beach (Earth) and forever wondering what's out there. Before SpaceX, I was singing along with Leslie Fish:
"Queen Isabella, where are you today?
The new Chris Columbus is wasting away.
The same Game is waiting, but no one will play...
Queen Isabelle, where are you now?"
Now we have one.... someone as rich as Queen Isabelle, that is, to get the Game (going into Space) going again. Yay!