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Dinosaur-Killing Impact Came From Edge Of Solar System, New Theory Suggests

A skeleton of an <em>Allosaurus</em> on display at Drouot auction house in Paris in October. A new theory says the dinosaurs were killed by a comet fragment that originally came from the edge of the solar system. (AP)
A skeleton of an Allosaurus on display at Drouot auction house in Paris in October. A new theory says the dinosaurs were killed by a comet fragment that originally came from the edge of the solar system. (AP)

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