NASA's GRAIL Mission Puts a New Face on the Moon

Using a precision formation-flying technique, the twin GRAIL spacecraft mapped the Moon’s gravity field, as depicted in this artist’s rendering. Image Credit: NASA/JPL-Caltech

Scientists, using data from the lunar-orbiting twins of NASA’s Gravity Recovery and Interior Laboratory (GRAIL) mission, are gaining new insight into how the face of the Moon received its rugged […]

GRAIL Mission Ends a Complete Success

A poster made for the GRAIL mission. Image Credit: JPL

After launching aboard a Delta II rocket from Cape Canaveral Air Force Station on September 10, 2011, at 9:08 a.m., and orbiting the Moon for almost a year, the two GRAIL spacecraft, which came to be named Ebb and Flow, have ended their […]

GRAIL Mission Ends


The GRAIL expedition to explore and map the Moon’s gravity field is scheduled to end today with the intentional impact of twin spacecraft, Ebb and Flolw, into the lunar surface. NASA TV plans to begin live coverage of the mission’s end at 5:00 p.m. ET The spacecraft are scheduled to impact the surface […]

GRAIL Mission to End in Crash

An artist’s concept of the twin GRAIL spacecraft, Ebb and Flow, in action around the Moon. Image Credit: NASA/JPL-Caltech/MIT

NASA’s GRAIL mission to map the gravity field of the Moon has enjoyed success beyond any expectations, but all good things must come to an end.