[RightWhale]

There is no water proven to be on the moon. Zero.

[coloradan]

I didn't say there was. What I said was, it would be as easy to get oxygen from water as from these rocks, and it's a big hassle to get it from water. Ergo, it's a pretty big hassle to get it from rocks (which are located on the moon) too. It's not like the lunar oxygen problem is "solved" - 2500 degrees is pretty hot, and it would take an awfully big furnace an awfully long time to get a community's worth of oxygen.

[Porterville]

I wouldn't say there is zero proof. Clearly there is some proof that water exist on the moon and there is some proof that it does not. But how can you be certain either way?

http://www.space.com/scienceastronomy/060306_lunar_ice.html