Posted by DA Morgan on Dec 17, 2001 at 12:25
Between the cataclysmic impact that created the Moon around 4.5 billion years ago and the first evidence of life 3.8 billion years ago, there may have been long periods during which life repeatedly spread across the globe, only to be nearly annihilated by the impact of large asteroids.
The early Earth, in other words, may have been an interrupted Eden. For the full story Click Here .
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