[carlo]

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Here's another coincidence(although this one doesn't bother me too much). The currently accepted theory for the formation of our moon is that at one time the earth was struck by another Mars sized planet. When this Mars sized planet collided with earth it had to do so at a very specific angle otherwise a moon would not have formed. I've heard this collision described as "a very lucky shot".

Stu

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Another look states that the moon which at that time was separate from the sun separated from the earth thus leaving 3 distinct bodies, sun, earth, moon.