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Thanks BenLurkin.

"So far we've found three types of moon water," said Paul Spudis of the Lunar and Planetary Institute in Houston, Texas. "We have Mini-SAR's thick lenses of nearly pure crater ice, LCROSS's fluffy mix of ice crystals and dirt, and M-cube's thin layer that comes and goes all across the surface of the moon." "It looks as though at least two different layers of our crater soil contain water, and they represent two different time epochs," said Anthony Colaprete, LCROSS principal investigator. "The first layer, ejected in the first 2 seconds from the crater after impact, contains water and hydroxyl bound up in the minerals, and even tiny pieces of pure ice mixed in. This layer is a thin film and may be relatively 'fresh,' perhaps recently replenished."




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