On Wed, 23 Jun 2010 19:44:35 -0400, bpuharic wrote:

http://www.msnbc.msn.com/id/37876895...ience-science/

Some of the most spectacular canyons on Earth and Mars were probably
formed in the geologic blink of an eye, suggests a new study that
found clues to their formation deep in the heart of Texas.


i gotta get the right groups....