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Rock differentiated europa smoothicycrust

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Unformatted text preview: er ‘11, leaves in May ‘12 • Arrives at Ceres in Aug ‘15 • Will map the chemical and mineral composition, morphology, topography, etc. of these two very different large asteroids. Outer Planet Satellites Outer Planet Satellites Gas Giant Satellites Gas Giant Satellites Giant Planet Jupiter Medium Satellites 0 Small Satellites 24 Saturn Large Satellites 4 Galilean Satellites Titan 6 23 Uranus 0 5: 16 Triton M,A,U,T,O 0 7 Neptune 24 23 16 • Distinct and important differences in density, composition, and orbital properties Jupiter System: The Galilean Satellites Io Volcanically active No H2O! Rock Differentiated. Europa Smooth icy crust “Ocean” suspected beneath Ice, Liquid Water (?), and Rock Differentiated. Ganymede Tectonic grooves Ice and Rock Differentiated Magnetic field! Callisto Battered by impacts. Ice and Rock. Only partially differentiated Io Io: Tidal Heating Io: Tidal Heating Io is in synchronous rotation around Jupiter (always shows the same side to Jupiter) and is stretched into a football shape along the Jupiter­pointing axis. Because Io’s orbit is eccentric, this foot...
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