...but it contained water. 
Linton
At a press conference today, researchers revealed preliminary data from NASA's Lunar Crater Observation and Sensing Satellite, or LCROSS, indicating that water exists in a permanently shadowed lunar crater. The discovery opens a new chapter in our understanding of the Moon.
http://science.nasa.gov/headlines/y2009/13nov_lcrossresults.htm?list964104
Linton
At a press conference today, researchers revealed preliminary data from NASA's Lunar Crater Observation and Sensing Satellite, or LCROSS, indicating that water exists in a permanently shadowed lunar crater. The discovery opens a new chapter in our understanding of the Moon.
http://science.nasa.gov/headlines/y2009/13nov_lcrossresults.htm?list964104
