IMAGE: When the rimwall of Iapetus’s Malun crater broke off and plunged more than five miles to the crater floor. “We see landslides everywhere in the solar system,” says Kelsi Singer, graduate ...

Saturn’s two-faced moon Iapetus reaches its greatest western elongation today. At western elongation, the moon’s lighter hemisphere is turned toward Earth, making it brightest and easiest to view ...

Extensive analyses and modeling of Cassini imaging and heat-mapping data have confirmed and extended previous ideas that migrating ice, triggered by infalling reddish dust that darkens and warms the ...

Saturn’s moon Iapetus reaches greatest western elongation today, now located 9.5’ west of the ringed planet. Iapetus has two vastly different hemispheres, one light and one dark. As the moon orbits ...

Saturn’s distinctive moon Iapetus (eye-APP-eh-tuss) is cryogenically frozen in the equivalent of its teenage years. The moon has retained the youthful figure and bulging waistline it sported more than ...

There are hundreds of moons in our patch of space. Some are tiny, some huge; some neatly spherical, some potato-shaped. Some ...

Saturn's moon, Iapetus, imaged by NASA's Cassini spacecraft in September 2007. (Credit: NASA/JPL-Caltech/Space Science Institute) We recently explored Saturn’s moon, Pan, and its unique, food-like ...

For centuries, people wondered how the leopard got its spots. The consensus is pretty solid that evolution played a major role. But it’s only been five years since the arrival of high-resolution ...

Clear as black and white, Saturn's moon Iapetus is two-faced. One half is dark as coal and the other is as bright as fresh linens. Astronomers have puzzled over the stark difference since late in the ...