Astronomers attempt to break deadlock over definition.
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With additional reporting by Geoff Brumfiel Discuss the IAU proposal on what makes a planet — and propose your own mnemonic for what could be the new 12 planets — on Nature 's newsblog, blogs.nature.com/news/blog.
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Hogan, J. Planets are round. Will that do?. Nature 442, 724 (2006). https://doi.org/10.1038/442724a
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DOI: https://doi.org/10.1038/442724a
