Geology

Science
11:56 am
Sat January 12, 2013

The oldest rock in the world tells us a story

Steve Munsinger Photo Researchers Inc.

Originally published on Fri January 11, 2013 10:51 am

It's hard to imagine how this teeny little rock — it's not even a whole rock, it's just a grain, a miniscule droplet of mineral barely the thickness of a human hair — could rewrite the history of our planet. But that's what seems to be happening.

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I Wonder Why ... ?
4:30 am
Fri January 13, 2012

Mima Mounds continue to mystify scientists

Aerial photo of some Mima Mounds, courtesy of the WA Dept. of Natural Resources.

There’s a large swath of native prairie southwest of Olympia that’s very strange looking. So strange, in fact, that some have even said it was created by aliens. 

What makes it strange are “things” called The Mima Mounds.

We can tell you some things they are not, but we can’t tell you what they are. In fact, people have been trying to figure them out for centuries.

“It’s probably one of the most poorly understood phenomena in earth science,” says Paul Butler, professor emeritus of Earth Science at the Evergreen State College.

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