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Published daily in Bend, Oregon, by Western Communications, Inc. Copyright 2007.
By Andrew C. Revkin / The Bulletin
July 7, 2008
The Earth is pockmarked with the evidence of ancient collisions — huge craters blasted into its surface by asteroids or comets. One such object, striking 65 million years ago in the Yucatan in Mexico, is believed by some experts to be linked to the demise of the dinosaurs.
For a....
