Water On The Moon

NASA just announced the discovery of water on the moon. You can read about it here:

https://www.sciencemag.org/news/2020/10/moon-may-hold-much-more-water-we-think

The NASA team says that each kilogram of lunar soil contains between 100 milligrams and 400 milligrams of water, or about one raindrop’s worth. They claim it would be "relatively easy" to melt the glassy materials and, in essence, mine the water.

That's not a lot of water, and so far no one has explained how much energy it would take to mine it and how that energy would be generated. In fact NASA isn't even sure how the basic electricity needs of long-term moon missions can be met, since most lunar locations are in darkness for two weeks at a time.

So I guess there is room for optimism, but don't expect to see any big cities on the moon any time soon.