PASADENA, Calif., Dec. 5 (UPI) -- NASA says its twin probes orbiting Earth's moon have generated the highest resolution gravity field map of any celestial body.
The new map, created by the Gravity Recovery and Interior Laboratory (GRAIL) mission, is giving scientists clues to the moon's internal structure and composition in unprecedented detail, NASA's Jet Propulsion Laboratory in Pasadena, Calif., reported Wednesday.