The finest details that can be discerned in this picture are about 6.7 kilometers across. Ganymede's Northern Limb View of the Northern limb region on Ganymede showing the Galileo Regio region. North is to the bottom of the picture and the sun illuminates the surface from the left. The finest details that can be discerned in this picture are about 6.7 kilometers across. Fine Details of the Icy Surface of Ganymede Dramatic view of fine details in ice hills and valleys in an unnamed region on Jupiter's moon Ganymede.
North is to the top of the picture and the sun illuminates the surface from the left.
In the right hand version the processing has been changed to bring out details in the shadowed regions that are illuminated by the bright hillsides. Ganymede - Memphis Facula Memphis Facula is the archetypal palimpsest, an ancient impact scar which is distinctly bright against the dark cratered terrain of Galileo Regio. It occurs on a background of furrowed dark terrain, with small patches of dark smooth materials appearing to fill the low spots between furrows. The images across the palimpsest will provide information as to the origin and evolution of this and similar low-relief impact scars. For more information on Ganymede, visit the Ganymede section of our News Archives .