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发帖数: 1994 | 1 Lunar Farside from Apollo 11
Credit: Apollo 11 Crew, NASA
Explanation: The far side of the Moon is rough and filled with craters. By comparison, the
near side of the Moon, the side we always see, is relatively smooth. Since the Moon is rotation
locked to always point the same side toward Earth, humanity has only glimpsed the lunar
farside recently -- last century. The light highlands of the far side are older than the dark
Maria of the near side. A thinner crust on the near |
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