Fox News report - By Andrea ThompsonQuote:
Since man first touched the moon and brought pieces of it back to Earth, scientists have thought that the lunar surface was bone dry. But new observations from three different spacecraft have put this notion to rest with what has been called "unambiguous evidence" of water across the surface of the moon.
Encouraging news for a settlement. Apparently the interaction of solar protons (hydrogen) with lunar regolith oxygen forms trace amounts of water, which collect in cold zones at the poles. I wonder if an artificial "cold trap" (reflective barrier to divert sunlight, and insulated against heat transfer through the soil) could be constructed in or around lunar settlements away from the poles to serve the same purpose. They might also be handy for recycling volatiles from waste gases vented from the settlements.