Answer: National Aeronautics and Space Administration (NASA)
Notes: NASA’s Gravity Recovery and Interior Laboratory (GRAIL) Mission recently created the most detailed gravity map of the Moon. The Gravity Recovery and Interior Laboratory (GRAIL) mission was launched by NASA. It was part of NASA's Discovery Program. The new map will help build a precise lunar reference frame and time system, making future Moon missions safer and more accurate. The mission showed that the Moon’s nearside, which faces Earth, is warmer and more geologically active than the farside. Earth’s gravity pulls more on the nearside, causing it to flex more and revealing interior structural differences. The nearside has large flat plains called "mare", while the farside has rugged terrain.
