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Stories about: bombardment

Asteroid Showers May Have Actually Helped Early Life Experts at the University of Colorado in Boulder (UCB) recently argued that the meteors that rained down on our planet approximately 3.9 billion years ago did not cause early life on Earth to disappear, and then reappear later. They said that, regardless of the fact that some of these meteor were the size of Kansas, ... 23 May 2009 06:43 GMT