| http://www.w3.org/ns/prov#value | - The Moon has two serious problems, and a third significant one.The #1 problem is that the Moon is at the bottom of a significant gravity well; it takes a lot of delta-V (and thus rocket fuel) to both land on and then to launch from its surface.The #2 problem is that the Moon's crust is seriously depleted in valuable materials including iron, hydrogen, and carbon.
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