Astronomers are announcing today that the precise gravity field of the lunar far side and the global lunar topography map were obtained by KAGUYA spacecraft. The report is being presented by Dr. Sho ...

Add Yahoo as a preferred source to see more of our stories on Google. See the 2,500 mile-long (4000 km) Valles Marineris in imagery captured the Mars Reconnaissance Orbiter. Global topography: ...