So, yes, there is water on the moon. According to the article from space.com cited below, there are two possible sources for the water. One is that it is carried by comets. The other is that it is created on the moon through an ongoing process. The solar wind consists of positively charged hydrogen atoms. The wind, at one third the speed of light, (very fast), slams into the moon with great force, breaking up the molecules of the soil, freeing up oxygen. Hydrogen meets oxygen and, abracadabra, there is H2O. The tangible outcome of sun meets moon is water.

"It's Official: Water Found on the Moon"
By Andrea Thompson
Senior Writer
space.com
posted: 23 September 2009