Goals: KAGUYA, initially named SELENE (SELenological and ENgineering Explorer) was a Japanese mission to map the Moon's surface and study lunar origins and evolution. It also carried two smaller satellites to study the Moon's gravity and ionosphere. This mission served as an engineering test for future deep space missions.

Accomplishments: KAGUYA concluded a successful two year mission of lunar exploration with a planned impact on the lunar surface. The impact plume was observed by Earth-based telescopes.