Lunar Crater Observation and Sensing Satellite's (LCROSS) chief lunar scientist Jennifer Heldmann speaks at a news conference after the twin impacts of LCROSS, and its rocket's upper stage in Moffett Field, California October 9, 2009. Searching for stocks of water on the moon, NASA crashed two spacecraft into an eternally dark lunar crater, hoping to splash ice into the light where instruments could assess it.[Xinhua/Reuters]