As India’s Chandrayaan-3 and Russia’s Luna-25 raced to the Moon over the last week, they drowned out the noise of a Pentagon announcement that signified how important this return to the Moon could be for all the countries participating in it. The Defense Advanced Research Projects Agency (DARPA), which is part of the United States Department of Defense, announced a ten-year plan to develop a “lunar economy.” Interestingly, the agency was behind many of the technologies that put man on the Moon in the first place. This includes the rocket technology used on the Saturn V rockets that launched the...