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Shoemaker-Levy 9

noun
  1. a comet that was captured into an orbit around Jupiter and later broke up, the fragments colliding with Jupiter in July 1995
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Word Origin

C20: after Carolyn Shoemaker (born 1929), Eugene Shoemaker (1928–97), and David Levy (born 1948), US astronomers, who discovered the orbiting fragments
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012