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    Valhalla Crater on Callisto. Callisto is the most heavily cratered satellite in the Solar System. Its surface has apparently been primarily sculpted by impacts. Valhalla is its largest crater - it's 360 km (225 miles) across and the rings extend to 1900 km (1190 miles) from its center. (Photo: NASA) ©Mona Evans,"Jupiter's Galilean Moons" www.bellaonline.c...

    Moons

    The Moon

    "The Moon and the Morning Star" -- The moon and Venus as seen by the Clementine probe in 1994; the moon is eclipsing the sun in this photo, resulting in a glow over the horizon.

    Stickney Crater, the largest crater on the martian moon Phobos

    Victoria crater, Mars

    The craters and fissures in the northern regions of Saturn's moon Enceladus

    Voyager 1 image of Jupiter's Great Red Spot. NASA/JPL

    Planets and moons of the Solar System

    Crescent Dione from Cassini, October 11, 2005 ~ Thin crescent of cratered terrain is illuminated on Saturn's fourth largest moon, Dione. As it departed its encounter with Saturn's moon Dione, Cassini sailed above an unreal landscape blasted by impacts. The rising Sun throws craters into sharp contrast and reveals steep crater walls.The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency

    Enceladus - moon of Saturn

    Uranus rings and moons

    Moons ~ (see pin on) "scale comparisons of the solar systems major moons"

    Pluto and its 4 moons (In 2012 they discovered a fifth moon, currently called P5)

    Jupiter and the Gallilean moons

    Moon Dust Probe | Nasa

    This color image of the Jovian moon Europa was taken from the Voyager 2 spacecraft on July 9, 1979.

    Moon with saturn occulation behind taken by Nasa's LRO

    The young impact crater Pwyll on Jupiter's moon Europa.

    Io Jupiter moon

    January 10, 1962: Apollo program: NASA announces plans to build the C-5 rocket launch vehicle. It became better known as the Saturn V Moon rocket, which launched every Apollo Moon mission.