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  • Mona Evans

    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" http://www.bellaonline.com/articles/art42279.asp

  • Jofre Maruny

    Wired Space Photo of the Day: Valhalla Crater

  • Monica Mitrica

    Calisto - Jupiter Moon - crater

  • Ziffy

    Valhalla Crater This close up of Callisto shows the heavily cratered surface and the prominent ring structure known as Valhalla. It was acquired by Voyager 1 on March 6, 1979. Valhalla’s bright central area is about 300 kilometers across.

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