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NASA, ESA Choose King of Planets for Flagship Missions in 2020

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Science  27 Feb 2009:
Vol. 323, Issue 5918, pp. 1154
DOI: 10.1126/science.323.5918.1154

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The jovian satellites Europa and Ganymede were chosen by NASA and European Space Agency officials last week as the next major missions to explore the solar system beyond Mars, instead of Titan, an equally intriguing moon of Saturn.