Magnesium is not usually considered to be a constituent of Earth's core, but its presence there has now been proposed to explain an ongoing enigma — the identity of the energy sources that drive our planet's magnetic field. See Letter p.387
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Buffett, B. Another energy source for the geodynamo. Nature 529, 288–289 (2016). https://doi.org/10.1038/529288a
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DOI: https://doi.org/10.1038/529288a
