Notable Developments

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Science  20 Dec 2013:
Vol. 342, Issue 6165, pp. 1444
DOI: 10.1126/science.342.6165.1444

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From a fiery meteor that changed the way we think about the asteroid threat to Earth to a remarkable fossil skull that altered our view of early human ancestors, there were plenty of other notable developments in science in 2013. Find out what Science staff considered the top breakup, breakdowns, breakout, and genomes of the year, as well as 2013's top fossil, politico, vertebrate, and invertebrate.