The Giant Impact Theory explains many aspects of lunar geology including the size of the Moon'score and the density and isotopic composition of moon rocks.
大碰撞假说能够解释月质学的许多方面内容，包括月球核心的大小、密度、月岩的同位素组分等。
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These include a 2018 mission to send the first probe in history to land on the "dark side" of the moon, whose extraordinary geology is largely unexplored.