Internationally respected astronomer and renowned comet physics expert Michael Francis A’Hearn (1940–2017) passed away on 29 May 2017 at the age of 76.
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Belton, M.J.S. Michael F. A'Hearn. Nat Astron 1, 644–645 (2017). https://doi.org/10.1038/s41550-017-0280-4
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DOI: https://doi.org/10.1038/s41550-017-0280-4
