Asked by: JOHN MORRIS, BY EMAIL
One major problem has been finding the signals of deep moonquakes among the ‘noise’ of other events, including meteor impacts. Using computers to clean up the data, a team led by Dr Renee Weber of NASA’s Marshall Space Flight Center in Huntsville, Alabama, has now found evidence that the Moon has a core very similar to that of the Earth, with a solid innermost region, and a molten outer core.
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