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Recent Crash Created Youngest Known Asteroid Family
Space.com ^ | June 12, 2002 | Robert Roy Britt

Posted on 09/23/2007 8:35:38 PM PDT by SunkenCiv

A few million years ago, two asteroids collided in interplanetary space. The smaller, aggressor rock was pulverized to dust as it shattered the larger target rock into millions of small and large fragments which were violently dispersed in all sorts of new directions... David Nesvorny and his colleagues at the Southwest Research Institute (SwRI) have identified 39 known asteroids as debris from a collision that took place practically yesterday in the history of the solar system. These new creations are expected to be largely unaltered since their violent generation just 5.8 million years ago. The largest remnant is an asteroid named Karin, roughly 12.5 miles wide (20 kilometers). The cluster of boulders, which all exhibit similar composition, has now been given the same name. The Karin cluster was born when an asteroid estimated to be 1.9 miles wide (3 kilometers) slammed into a 16-mile-wide (25 kilometers) rock at about 11,180 mph (5 km/s), Nesvorny explained. The target rock was 600 times more massive than the smaller one. At least hundreds and perhaps thousands of fragments larger than 0.62 miles (1 kilometer) were produced, Nesvorny said. An asteroid this large could cause a global catastrophe if it met up with Earth. The collision also generated up to 100 million fragments as big as a football field, he said. Such rocks could destroy a city. Preliminary observations also found space dust that appears to be associated with the crash... The study team also included William F. Bottke Jr, Luke Dones & Harold F. Levison, all of the SwRI, which is in Boulder, Colorado.

(Excerpt) Read more at space.com ...


TOPICS: Astronomy; Science
KEYWORDS: catastrophism
It is estimated that in about 100 million years the cluster will have dispersed to a degree where it cannot be separated from the background population of asteroids. [wikipedia]
1 posted on 09/23/2007 8:35:40 PM PDT by SunkenCiv
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To: 75thOVI; AFPhys; Alice in Wonderland; AndrewC; aristotleman; Avoiding_Sulla; BenLurkin; Berosus; ...
Karin cluster formation by asteroid impact [from PDF, html via Google]
 
Catastrophism
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2 posted on 09/23/2007 8:37:47 PM PDT by SunkenCiv (Profile updated Wednesday, September 12, 2007. https://secure.freerepublic.com/donate/)
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To: SunkenCiv

While I’m a traditional-values kind of guy, I’m not all that choked up about this ‘nuclear’ family, merely created on a theorist’s simulator and not exactly replicable...


3 posted on 09/23/2007 9:15:57 PM PDT by The Spirit Of Allegiance (Public Employees: Honor Your Oaths! Defend the Constitution from Enemies--Foreign and Domestic!)
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The Cycle of Cosmic Catastrophes: Flood, Fire, and Famine in the History of Civilization The Cycle of Cosmic Catastrophes:
Flood, Fire, and Famine
in the History of Civilization

by Richard Firestone, Allen West, and Simon Warwick-Smith


4 posted on 09/25/2007 7:56:55 AM PDT by SunkenCiv (Profile updated Wednesday, September 12, 2007. https://secure.freerepublic.com/donate/)
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To: The Spirit Of Allegiance; SunkenCiv
While I’m a traditional-values kind of guy, I’m not all that choked up about this ‘nuclear’ family, merely created on a theorist’s simulator and not exactly replicable...

I was wondering if this family is relation to hemorrhoid family down the block?

5 posted on 09/26/2007 8:21:09 PM PDT by Swordmaker (Remember, the proper pronunciation of IE is "AAAAIIIIIEEEEEEE)
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