Saturn’s two-toned moon reaches its greatest western elongation, when it shines brightest far west of the ringed planet.

There's Enceladus, an icy moon that blasts water out into space through geysers at its southern pole. But the Saturnian moon that fascinates me the most has got to be Iapetus, also known as Saturn ...

The thin but super-fast winds in the temporary atmosphere screamed out from the ridge and deposited dust over a large area of Iapetus, according to Freire. He points out that this should cause the ...

Saturn's moon Iapetus has many unique features that stand out even among the odd Solar System satellites. Its shape is very walnut-like: flattened at the poles, bulging strongly at the equator ...

Distant Iapetus started out as Saturn V, but the discovery of Mimas, Enceladus, and Hyperion bumped it down to Saturn VIII. Nearly 200 years later, John Herschel suggested that the moons around ...

As it turns out, Iapetus may have formed far enough away from Saturn to be able to capture its own satellite before moving in closer. As it got closer to Saturn, this moon-moon system broke up ...

The resulting two-colored treat would resemble one of Saturn’s weirder moons, Iapetus — an icy world with a coal-black face and a bright white backside. For centuries astronomers have puzzled ...

The challenge in developing a model of how Iapetus came to be “frozen in time” has been in deducing how it ever became warm enough to form a bulge in the first place, and figuring out what ...

“If either of those objects has this equatorial ridge like Iapetus, our collective brains would just explode.” Neuronal detonation aside, it would indeed be a discovery. As it turns ...