The moon’s heart of iron revealed for the 1st time

Around 20 years ago, scientists were able to use the rotation of the moon to determine it had a fluid outer core, but the relatively small size of the inner core made it harder to investigate. 

Now, new research has revealed the heart of the moon as never seen before, demonstrating that it has a solid core that is composed of iron like Earth. The findings uncover details of the internal structure of the moon that were previously hidden and could explain why iron-rich materials are present in the lunar crust.

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