Its such a HUGE area.
And it keeps expanding as humanity progresses, Hubble sends us images not unlike our scifi illustrators of the long past showed us.
So fiction becomes fact, one would think that eventually scifi would die out, what with all this fact.
But it won't, it can't, after all there is the future to keep it going.
And of course the Aliens in our minds.
I'm not sure what will happen when humanity finally goes beyond the solar system.
Anyway, just thought I'd reassure you!