Fun things to think about, Raoul.
Regarding our Moon. I have to confess that if I look at the moon long enough, I can't help but think that if I was on the moon, the side of the Earth that is lit (Earth phase to the moon) is exactly the opposite or a mirror image of what I see when I look at the moon. Can't help it. :)
Thanks, that was a good reminder to get Phil Plait's book... kids would love it too. :)
Marcia