PBS NewsHour Grand Canyon May Be 60 Million Years Older Than Thought
Grand Canyon May Be 60 Million Years Older Than Previously Thought Details
Program: PBS NewsHour
Episode: Grand Canyon May Be 60 Million Years Older Than Thought
A newly published study renews an old debate about the age of the Grand Canyon, positing a possibility that the geographical formation could be tens of millions of years older than current wisdom suggests, dating back to the time of dinosaurs. Margaret Warner talks to science correspondent Miles O'Brien about its significance.
Premiere Date: 11/30/2012
Episode Expires: Never
TV Rating: E
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