An artist's illustration expression of how a large meteorite impact in the sea might have looked in the first second of the impact. Scientists are unsure if the oldest meteorite crater on Earth, a 3 ... more 
An artist's illustration expression of how a large meteorite impact in the sea might have looked in the first second of the impact. Scientists are unsure if the oldest meteorite crater on Earth, a 3 billion-year-old crater in West Greenland, w less 
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SPACE.com | Photo By Carsten Egestal Thuesen, GEUS
Fri, Jun 29, 2012 12:37 PM EDT