Check out this side by side scale comparison of Earth, the rest of our solar system and some of the larger bodies in the galaxy beyond. Just trying to wrap my brain around facts like these humbles me to no end:
I'll tell you one thing about the universe, though. The universe is a pretty big place. It's bigger than anything anyone has ever dreamed of before. So if it's just us... seems like an awful waste of space. Right?
-Eleanor Arroway, Contact