I guess those Apollo samples might not have been contaminated after all. The estimate based on this mission's data is that the moon has 1 gallon of water per ton of surface mass. This comes to about two and a half gallons per cubic yard. That's not nearly enough for sustainable human colonization, but we also have to wait until October 9 for the LCROSS impact data (I'm excited for this because someone I know worked on the project for his PhD.) There may be a lot of water at the poles, which would make it possible to build a colony, and would make it a lot easier to get water to Mars for a manned mission.
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