This false-color view taken by NASA's Cassini spacecraft is one of a panel of three images of Saturn's moon Iapetus showing the boundary of the global 'color dichotomy' on the hemisphere of this moon facing away from Saturn.
NASA's Cassini spacecraft examines the rough dark-light dichotomy of the terrain on Saturn's moon Iapetus. Lit terrain seen here is on the Saturn-facing side of Iapetus.
This anaglyph, shows huge mountains on Saturn's moon Iapetus, imaged by NASA's Cassini spacecraft during its very close flyby in Sept. 2007. 3D glasses are necessary to view this image.
The two-toned surface of Saturn's moon Iapetus is demonstrated in the dark region of the moon visible on the top left and the bright crater in the lower right of this portrait captured by NASA's Cassini spacecraft.
Saturn's outermost large moon, Iapetus, has a bright, heavily cratered icy terrain and a dark terrain, as shown in this NASA Voyager 2 image taken on Aug. 22, 1981.
A large crater can be seen in the southern hemisphere of Saturn's two-tone moon Iapetus. Lit terrain seen here is on the trailing hemisphere while the leading hemisphere is extremely dark and whose trailing hemisphere is as white as snow.
These two global images of Iapetus taken by NASA's Cassini's spacecraft show the extreme brightness dichotomy on the surface of this peculiar Saturnian moon.
A large dark region fills a semicircle of the visible disk of Iapetus on the left of this NASA Cassini spacecraft image, appearing like a bite taken out of this Saturnian moon.
Craters give a rugged look to surface of Iapetus, especially in the large basin of Engelier visible along the southern limb of the moon in this view captured by NASA's Cassini spacecraft.
The oblate shape of the moon Iapetus is particularly noticeable in this portrait; the two-toned surface of the moon Iapetus also stands out against the darkness of space in this image taken by NASA's Cassini spacecraft.
NASA's Cassini Orbiter captures a far-off view of the two-toned surface of Saturn's moon, Iapetus. Scientists continue to investigate the nature of this moon's surface.
This stereo view of Iapetus was created by combining two NASA Cassini images, which were taken one day apart. The view serves mainly to show the spherical shape of Iapetus and some of the moons topography. 3-D glasses are necessary to view this image.
A crescent Iapetus shows, at the top right of this image from NASA's Cassini spacecraft, some of the dark terrain characterizing this unusual Saturnian moon.
Iapetus shows off its puzzling light and dark terrain in this image captured by NASA's Cassini spacecraft. Lit terrain seen here is on the Saturn-facing side of Iapetus.