Callisto Globe

Get to know one of the most heavily cratered moons in our solar system with this stunning 12" desktop globe. Astronomy magazine is proud to unveil the all-new Callisto Globe - available exclusively through MyScienceShop.com.  Developed by Trent Hare at the United States Geological Survey Astrogeology Science Center using data supplied by the Galileo, Voyager 1, and Voyager 2 spacecraft, a mosaic was created by selecting data on overall image quality, reasonable input resolution, and availability of moderate viewing angles for topography. This moon, along with the three other large moons of Jupiter, was discovered by Italian scientist Galileo Galilei in 1610.  He called them Medicean Stars.  However, in his honor of the discovery, they are now most often called Galilean satellites.  They were the first bodies found that orbited another planet. Callisto is made of equal parts rock and ice, mostly water ice.  Because there isn't a lot of ice near the surface, the moon is not at all ref