Put the size of the Milky Way into perspective: if our galaxy was as large as the continental US, the Sun would be as small as a pollen grain.
Excellent animations here:
youtu.be/VsRmyY3Db1Y

"Better Than Earth": a beautiful article in Scientific American about exoplanets deemed more habitable than Earth, illustrated by Ron Miller.
personal.tcu.edu/dingram/bett...