Galileo Regio's Furrowed Region
View of the Galileo Regio region on Ganymede showing fine details of the Galileo image fit into the larger scale, but much lower resolution view of the region taken 17 years earlier by Voyager. The broad curved furrow patterns are characteristic of the darker regions of this moon. North is to the top of the picture and the sun illuminates the surface from almost overhead in the Galileo picture.
Image Credit: NASA