12-March-2008, 10:07 PM
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Order of Kilopi
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Join Date: Mar 2004
Posts: 13,459
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Thread revived for news.
National Geographic: "Giant Fireball" Impact in Peru Upends Meteorite Theory
Quote:
A meteorite that smacked into the Peruvian highlands last September may have punched holes into long-held theories about how such meteorites, called chondrites, interact with Earth's atmosphere.
[...]
Yet "the [Peruvian] meteorite kept on going at a speed about 40 to 50 times faster than it should have been going," defying the theory, [Brown University's Peter] Schultz said.
In fact it came down intact as a giant fireball at about 15,000 miles (about 24,000 kilometers) an hour, creating a 50-foot-deep (15-meter-deep) crater.
[...]
"Rather than flying apart," he told National Geographic News, "[perhaps] it shaped into a needle and pierced the atmosphere."
[...]
Regardless of what happened, Schultz wants to see the crater protected for future research.
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Horse's mouth, Brown University press release: Brown Scientist Answers How Peruvian Meteorite Made It to Earth
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