Last night my three year old daughter pulled her usual bedtime delaying tactic:  Ask daddy to show her some pictures of the Moon.  One quick google images search later, I have a screen full of Moon and Moon-related images.  She points to an image of an Apollo Lunar Module, preparing to descend to the lunar surface from orbit and says “Look Daddy!  There’s a man walking on the Moon!”  Which is pretty impressive for somebody who can’t yet read.  We start them young in this family!