The moon may hold water in more places and in larger amounts than scientists have suggested in the past.The discovery could be important for planned, long-term human bases on the moon.It could mean that enough resources exist on the moon itself to provide drinking water and possibly help produce rocket fuel.Until about 10 years ago, scientists believed the moon was mostly dry.Then, a series of findings provided evidence that water ice was widespread in small amounts on parts of the moon.The ice was thought to be in areas permanently blocked from sunlight.But in one of the new studies, NASA said it was able to confirm the presence of water molecules on sunlit parts of the lunar surface.