Do some parts of the moon have the same amount of water as the earth?

This is pretty neat news.

There is water inside the moon -- so much, in fact, that in some places it rivals the amount of water found within Earth. . . .

Those measurements show that some parts of the lunar mantle have as much water as Earth's upper mantle. . . .

The study also puts a new twist on the origin of water ice detected in craters at the lunar poles by several recent NASA missions. The ice has been attributed to comet and meteor impacts, but it is possible some of this ice could have come from the water released by eruption of lunar magmas. . . .