Thank you USViking. Give the man a cigar. The possibility I highlighted above from your research is the one I know of. I saw a two hour long program on the birth and life line of earth. Very, very interesting. And when they got to the part of how our atmosphere was formed, and how water got here, they said that water was probably deposited here by a massive meteor shower of mainly ice. That left me asking myself, if this meteor shower of ice chunks was huge enough to cover the earth to the extent that it did, then why doesn't the moon have an atmosphere and water as well. Why isn't the moon a mini earth? And to go one step further, why isn't there planets all over our galaxy that have water if there's these massive showers of ice meteors floating around? Why is the earth the only planet that we can find that has water? Doesn't that strike anyone else as a little ODD?