View Full Version : A Benevolent Sort of Asteroid Bombardment?

2009-May-20, 05:20 PM
Celestial impacts can bring life as well as wipe it out, say the authors of a new study out of the University of Colorado at Boulder.A case in point: the bombardment of Earth nearly 4 billion years ago by asteroids as large as Kansas would not have had the firepower to extinguish potential early life [...]

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