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Organic Earth
52"x42"
$4600
During the period of heavy cometary bombardment (4.5 billion years ago), the early Earth accreted prebiotic organic molecules necessary for life.
[Chyba, C.F., P.J. Thomas, L. Brookshaw, C. Sagan (1990) Cometary Delivery of Organic Molecules to the Early Earth, Science, Vol 249, Issue 4967, 366-373.]
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All images on this site are © Carol Kucera and may not be reproduced without permission.