This video shows milestones in NASA's Gravity Recovery and Interior Laboratory (GRAIL) mission, starting from launch on Sept. 10, 2011. The package also includes animation and video footage of separation of the Ebb (GRAIL-A) and Flow (GRAIL-B) spacecraft, lunar orbit insertion and operations in GRAIL's mission support area at NASA's Jet Propulsion Laboratory in Pasadena, Calif.
