With the GRAIL data, the astronomers were able to map the gravity field both in and around over 1,200 craters on the lunar far side. This region--the lunar highlands--is our Moon's most heavily cratered, and therefore oldest, terrain. Heavily cratered surfaces are older than smoother surfaces that are bereft of craters. This is because smooth surfaces indicate that more recent resurfacing has occurred, erasing the older scars of impact craters.
The GRAIL mission was managed by NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, for NASA's Science Mission Directorate in Washington. The mission was part of the Discovery Program managed at NASA's Marshall Space Flight Center in Huntsville, Alabama.
Moon in a Fire element (Aries, Leo or Sagittarius) will react directly and with enthusiasm to anything that they can pioneer or have a leading part in directing change or something new. Emotions driven by fire can be explosive, impatient and restless but will feel at home in having a mission and implementing action in getting things off the ground and aiming for a goal.