Abstract
Recent determinations of the masses and radii of the planets may be interpreted as showing that the systems Earth–Moon–Mars and Mercury–Venus could have resulted from the break-up of two unstable planetary bodies of identical chemical composition. Thereby various features of planetary evolution would be elucidated.
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McCREA, W. Densities of the Terrestrial Planets. Nature 224, 28–29 (1969). https://doi.org/10.1038/224028a0
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DOI: https://doi.org/10.1038/224028a0
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