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No. The core of the Earth is, we believe, mostly iron. We're not sure what the Moon's core is made of, but it's something substantially lighter than the Earth.

In fact, the core of the Earth is larger and more dense, we believe, than any other planet.

We believe that when the solar system was very young, a pre-Earth collided with another planet perhaps as large as Mars. The cores of the two planets merged, which is why the Earth has a larger-than-expected iron core. Much of the surface material was blasted back into space. The impact completely re-formed the Earth, and some of the material blown into space coalesced to form the Moon.

Comments: I agree the composition of the Moon's core is uncertain, but it

could be quite similar to Earth's, including the fact that it is partly molten.

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11y ago

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