Breakup event in the main asteroid belt likely caused dinosaur extinction 65 million years ago

The impactor believed to have wiped out the dinosaurs and other life forms on Earth some 65 million years ago has been traced back to a breakup event in the main asteroid belt.

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<p><a href="http://www.physorg.com/news108218928.html">Breakup event in the main asteroid belt likely caused dinosaur extinction 65 million years ago</a></p> <p>The impactor believed to have wiped out the dinosaurs and other life forms on Earth some 65 million years ago has been traced back to a breakup event in the main asteroid belt.</p>