Nimmo and his colleague Isamu Matsuyama at the Carnegie Institution of Washington detailed their findings in a recent issue of the journal Geophysical Research Letters.

 
  • 离地球近一端的 月球 外壳比较薄,由大量的黑色玄武石构成,称为 月球 表面的"黑暗地区",这些物质由很久以前火山喷发而成;
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