The Lunar Reconnaissance Orbiter (LRO) is a NASA robotic spacecraft currently orbiting the Moon in an eccentric polar mapping orbit. The LRO mission is a precursor to future human and robotic missions to the Moon by NASA.
To this end a detailed mapping program will identify safe landing sites, locate potential resources on the Moon, characterize the radiation environment, and demonstrate new technology.
Several instruments that will help NASA characterize the moon's surface have been installed on LRO. The powerful equipment will bring the moon into sharper focus and reveal new insights about the celestial body nearest Earth.
See news entry: Lunar Reconnaissance Orbiter