I was faced with a variant of the “if a tree falls in the forest and there is no one there to hear it (or blog it)” puzzle tonight when my younger son came inside very upset because he had to draw a picture of the moon but it was too overcast to see it. To draw a picture of the moon you have to see it (those of you with small children know what I am talking about as Dave Barry would advise), fortunately some googling turned up the Virtual Reality Moon Phase Pictures (courtesy of the US Naval Observatory).