Space Photo of the Day - Wired Science. Picture of the Day - The Trifid Nebula: Stellar Sibling Rivalry. Vídeos Celestia. Cassini. Two Views of Home. Two Views of Home. Reappearing Rhea. The Face of Beauty. Biggest Saturnian Moons. Catalog Page for PIA11690. These two global images of Iapetus show the extreme brightness dichotomy on the surface of this peculiar Saturnian moon.
The left-hand panel shows the moon's leading hemisphere and the right-hand panel shows the moon's trailing side. While low and mid latitudes of the leading side exhibit a surface almost as dark as charcoal, broad tracts of the trailing side are almost as bright as snow.