https://www.knau.org/tags/wayne-ranney Wayne Ranney en-US Copyright Wed, 12 Dec 2012 22:53:19 GMT https://www.knau.org/fronteras/2012-12-12/pondering-the-age-of-the-grand-canyon Last month geologists published a paper in the journal Science that concluded the Grand Canyon -- or at least part of it -- is much older than most… Wed, 12 Dec 2012 22:53:19 GMT https://www.knau.org/fronteras/2012-12-12/pondering-the-age-of-the-grand-canyon Laurel Morales