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http://hollowplanets.com/index.php/2020/08/20/science-moon-is-moving-away-from-earth-scientists-shot-lasers-at-a-lunar-orbiter-for-a-decade-then-one-bounced-back/
Science: Moon is moving away from Earth: Scientists Shot Lasers at a Lunar Orbiter for a Decade. Then, One Bounced Back