Researchers who once confidently stated that the Moon was bone-dry are now thinking the unthinkable: The Moon has so much water, there's actually a "lunar hydrosphere." International spacecraft have recently discovered no fewer than three "flavors" of moonwater and no one knows when the discoveries will end.
FULL STORY at
http://science.nasa.gov/headlines/y2010/18mar_moonwater.htm?list1052465
