Doubt cast on evidence for wet Moon (BBC)

By Paul Rincon
Science editor, BBC News website, The Woodlands, Texas

Scientists have cast doubt on a major part of the case for the Moon having once held abundant water.

A US team studied a mineral called apatite, which is found in a variety of lunar rock types.

Apatite, whose name comes from a Greek word meaning deceit, may have misled scientists into thinking the Moon is wetter that it actually is.

Lead author Jeremy Boyce said: "We thought we had a great indicator, but it turns out it's not that reliable."

Initial analysis of the lunar rocks brought back to Earth by the Apollo missions, suggested the Moon was "bone dry".
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more: http://www.bbc.com/news/science-environment-26696856
http://www.sciencemag.org/content/early/2014/03/19/science.1250398