Have you seen the new picture of the earth and moon from Mars.
http://photojournal.jpl.nasa.gov/figures/PIA17936_fig1.jpg
you can just barely make out the moon under the earth.
I always wonder just why god has it that the very small and very large are so much the same. We understand so little about either. Perhaps its a reminder that faith in him plays a part whether we like it or not.