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Earth's First Breath, Earlier Than Thought
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Mia Knight
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1
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279
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September 29, 2007, 12:39:16 am
by Mia Knight
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Dino-Killing Asteroid Fueled Global Wildfires, Study Says
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Derek
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184
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June 23, 2007, 03:16:16 am
by Derek
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Mass Extinctions and Impact Events
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Adam Hawthorne
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5
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516
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June 22, 2007, 12:59:51 am
by Adam Hawthorne
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Origins of the Earth
« 1 2 3 4 »
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Rebecca
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56
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4189
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May 21, 2007, 01:59:31 pm
by BlueHue
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