Lunar CRater and Observation and Sensing Satellite (LCROSS)
The results and analysis are streaming in from NASA's LCROSS probe--a robotic craft they purposely crashed into a crater to look for water. And they found some--about 25 gallons. It's got scientists excited, because it looks likely that's just the tip of the, uh, iceberg. That means there may be an abundance of water available for a future moon base.
Dan Andrews, the LCROSS project manager