The mosaic shows several new features and characteristics of the surface revealed by Galileo. These include deposits that may represent landslides in the southern and southwestern floors of many craters. The pervasive local smoothing of Callisto's surface is well represented in the plains between the craters in the southeastern part of the image. Possible oblique impacts are suggested by the elongated craters in the northeastern and southeastern parts of the image. This two frame mosaic of images from NASA's Galileo spacecraft shows an area in the southern hemisphere of Jupiter's moon, Callisto, that was not imaged during the 1979 flyby of NASA's Voyager spacecraft.
North is to the top of the image.
The smaller, younger craters are brighter and have sharper, more pronounced rims. This cross-cutting relationship indicates that Thorir is older than the event that produced this fracture. Heavy Cratering near Callisto's South Pole Images from NASA's Galileo spacecraft provide new insights into this region near Callisto's south pole. This two frame mosaic shows a heavily cratered surface with smooth plains in the areas between craters. North is to the top of the image.