Comment on Apollo Moon Landing Hoax – Why Fake a Moon Landing? by jfb.
Water is *rare* on the Moon; in fact, it’s pretty limited to craters at the poles that are constantly in shadow. There are elements on Earth that are rare enough that if you aren’t sampling in the exact right place, you’d never know they were there.
The Apollo missions sampled a *tiny* portion of the lunar surface. All of the sites are on the near side, and most were chosen mostly for ease of landing than scientific interest. Notably, all got plenty of sunlight during a lunar “day”, so any water near the surface would have long since boiled off into space.
This is why missions like Clementine and LRO and LCROSS are so valuable; they provide a global overview of the Moon, and provide some context that was missing from the Apollo missions. They’re also a helluva lot cheaper than sending people.
There is plenty we still *don’t* know about the Moon.