The Moon could have been derived from a well-mixed disk of rock vapour that was produced after the early Earth collided with another planet. This persuasive idea offers a fresh perspective on the history of both bodies.
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Halliday, A. Isotopic lunacy. Nature 450, 356–357 (2007). https://doi.org/10.1038/450356a
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DOI: https://doi.org/10.1038/450356a
