
12:18 a.m. Greenwich Mean Time on Aug. 2, 1971, Commander David Scott of Apollo 15 placed a 3 ½-inch-tall aluminum sculpture onto the dusty surface of a small crater near his parked lunar rover. At that moment the moon transformed from an airless ball of rock into the largest exhibition space in the known universe.
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Between mouthfuls, van Hoeydonck and Scott discovered shared obsessions with archaeology and Mayan mythology. At the end of the evening, van Hoeydonck praised Scott and Irwin: “ ‘You guys are like the knights that existed in medieval time—the astronauts of the Holy Grail,’ I told them. They toasted me, ‘Look what this guy says! Let’s get him a sculpture on the moon!’
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Two days after the NASA press conference, van Hoeydonck wrote to the Apollo 15 crew: “To open the way to the Stars is the most important mission of man in this century.” In a separate letter, sent directly to Scott the same day, he added, “Sorry you didn’t find an ancient temple but … the experience of walking on the moon must be out of our dimensions.”