NASA - National Aeronautics and Space Administration

Atlantis, commanded by Charlie Hobaugh, is delivering parts to the space station, including a spare gyroscope. The mission features three spacewalks.

Preliminary data from the Lunar CRater Observation and Sensing Satellite indicates that the mission successfully uncovered water during the Oct. 9, 2009, impacts near the moon's south pole.

NASA will begin transmitting commands to its Mars exploration rover Spirit on Monday as part of an escape plan to free the venerable robot from its Martian sand trap.