Sunday, April 27, 2008

The Grand Old Canyon

Just last month, a team of scientists announced evidence that the Grand Canyon is 17 million years old, or 11 million years older than previous estimates. Now, scientists at the University of Colorado and the California Institute of Technology say they have mineralogical evidence that suggests the canyon started forming more than 55 million years ago and possibly existed 65 million years ago when dinosaurs still roamed.

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