I posted this in another thread, but I think its so cool that I had to make a new thread for this.
http://scaleofuniverse.com/I never though we are that big in relation to the sub-quantum particles, yet so tiny in relation to the universe. I mean, yeah, I knew we are small, but not that small. This just blows my mind. If our galaxy is so insignificant in the universe, then anything is possible. Aliens, god, time-travel.
We know so little. We can only guess and write fiction about whats out there. At least at this time.