The Japanese Kayuga probe apparently has detected uranium on the Moon. If verified, it conceivably could provide a power source for lunar colonies.
Much of the science fiction written about the Moon depicts mining activities there. Finding apparent deposits of uranium ore on the Moon therefore is a very interesting development, as it begins to provide an economic rationale for further, detailed exploration and a potential building block for self-sustaining colonies. At some point, the Earth is going to need to agree on how the Moon’s resources should be explored, who or what may have ownership rights, and how proceeds from exploitation of the resources will be apportioned.