Scientist re-examined rocks from the Apollo missions of about 35 years ago. They presumed the Moon had no water, they presumed worng.

Walter Brown speculated that Noah’s flood created explosive water and steam that accelerated ice into the moon. This would cause water to melt rock on impact! Furthermore, we would expect water to boil off on the moon, but we have a peculiar circumstance of water being trapped inside rock!

Well, well, what do we see:

Watery Moon Upsets Conventional Wisdom

These results raise many questions. Are the volatile contents of the melts that formed the green and orange glasses typical for the Moon? Can the general scarcity of most volatile elements on the Moon be reconciled with the apparent abundance of sulphur, chlorine, fluorine and especially water in the lunar glasses? What happened to all the water during the Moon’s formation? And if the Moon is not bone dry, where did the water come from?

Mark Chaussidon, “Planetary science: The early Moon was rich in water,” Nature 454, 170-172 (10 July 2008)