In hopes of seeing whether there's water or ice on the moon, NASA is crashing two spacecraft onto the moon's surface. The AP explains, "The crashing spaceship was launched in June along with an orbiter that's now mapping the lunar surface. LCROSS -- short for Lunar Crater Observation and Sensing Satellite and pronounced L-Cross -- is on a collision course with the moon, attached to an empty 2.2-ton rocket that helped get the probe off the ground." more ›