LRO is the Lunar Reconnaissance Orbiter for NASA. Used to map the moon to identify safe landing sites, locating potential resources, characterizing the radiation environment and demonstrating new technologies. The LCROSS is the Lunar Crater Observation and Sensing Satellite, also for NASA. A low cost satellite in order to confirm the existance of water in the southern lunar crater, Cabeus.
An Atlas V with a 4 meter diameter fairing, no boosters and a single centaur upper stage engine.See Atlas Details
United Launch Alliance (ULA) is a joint venture of Lockheed Martin Space Systems and Boeing Defense, Space & Security. ULA was formed in December 2006 by combining the teams at these companies which provide spacecraft launch services to the government of the United States. ULA launches from both coasts of the US. They launch their Atlas V vehicle from LC-41 in Cape Canaveral and LC-3E at Vandeberg. Their Delta IV launches from LC-37 at Cape Canaveral and LC-6 at Vandenberg.INFO WIKI