Ganymede in the best “disk” detail I have ever seen. There are some great close up images of Ganymede, but for some reason most of the images that show the moon from a distance are usually blurry and lack the detail you see here. This composite is by Ted Stryk but the trick is that his original was only in black and white, so I ham-handedly used other images of Ganymede to colorize it. So… the color here is interpretive and not based upon actual data.