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New type of moon rock identified

disclaimer: image is for illustration purposes only
by Staff Writers
Providence, R.I. (UPI) Nov 3, 2010
U.S. scientists say a new type of rock on the moon, the first new variety identified in decades, is probably ancient material born deep inside the moon.

Located on the far side of the moon and undetected until a space probe measured its odd mineralogy, the rocks are located in a few isolated deposits, reported Wednesday.

"These are very unusual areas," Carle Pieters, a planetary geologist at Brown University, told a meeting of the Geological Society of America Tuesday.

Pieters calls the new rock type OOS because it is rich in the minerals orthopyroxene, olivine and spinel.

The spinel, a gemstone prized on Earth, is particularly intriguing, scientists say, as it occurs only in the smallest trace amounts in every other part of the moon.

How the OOS material got where it is remains something of a mystery.

Most scientists think the moon formed when a Mars-sized object hit the infant Earth 4.5 billion years ago, knocking a large amount of material into Earth orbit where it cooled and solidified to form the moon.

The newly identified, spinel-rich areas could be from those early days, Pieters says, part of the moon that cooled early on deep in the crust and later came to the surface through some kind of geologic action.

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Moon Express Enters $30 Million Google Lunar X PRIZE Competition
San Francisco CA (SPX) Nov 02, 2010
Moon Express has announced its official entry into the Google Lunar X PRIZE - a $30 million competition that challenges space professionals and engineers from across the globe to build and launch to the moon a privately funded spacecraft capable of completing a series of exploration and transmission tasks. Team MoonEx, headquartered in San Francisco, CA, is among 24 teams from a dozen coun ... read more

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