"Too bad you can't buy a voodoo globe so you can make the Earht spin real fast and freak everybody out." - Jack Handy
Phase of the Moon Today: Waxing Crescent 9% of Full - cloudy yet again, it's getting quite disappointing not being able to see the Moon - I've taken it for granted
The Fission Theory: This theory proposes that the Moon was once part of the Earth and somehow separated from the Earth early in the history of the solar system. The present Pacific Ocean basin is the most popular site for the part of the Earth from which the Moon came. This theory was thought possible since the Moon's composition resembles that of the Earth's mantle and a rapidly spinning Earth could have cast off the Moon from its outer layers. However, the present-day Earth-Moon system should contain "fossil evidence" of this rapid spin and it does not. Also, this hypothesis does not have a natural explanation for the extra baking the lunar material has received.
The possiblity that the Earth was able to spin that fast to create the Moon is (I think) a physical impossibilty. I prefer the giant impact theory.
signing off ..
kb
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