You can read about Kaguya on my earlier posts here:
A Moon Maiden Takes Flight - Princess Kaguya
Top Of The Moon
The Earth Also Rises
Lunar Eclipse As Seen From The Moon
At the end, Kaguya filmed the trip all the way down with HD (high definition) TV, skimming the surface until at last she plunged into the Moon just beyond the lighted area.
Now, the USA has it's own satellite orbiting the moon - the LRO, or Lunar Reconnaissance Obiter - with a similar mission of mapping with photo images and radar. The purpose is to find future landing sites for manned visits to the moon and possibly extended stays. Like Kaguya, the LRO will eventually be sent into the surface. When it goes, a second probe will follow it through the plume of dust it sends up in order to study the materials ejected. The hope is to find frozen water which might be used by future missions to make water and also hydrogen fuel for rockets and oxygen for breathing.
Sayonara, Kaguya. You are truly home at last. Mission well done.