Visible in the early-morning sky today, Saturn’s two-toned moon Iapetus reaches superior conjunction just 1.4′ due south of Saturn. The proximity makes the now-11th-magnitude moon easier to find, as ...

Iapetus is the third-largest moon orbiting Saturn, with a diameter of 914 miles (1,471.2 km). Although its radius is about two-fifths that of Earth's moon, ...

How Saturn's moon Iapetus got its ridge Date: December 13, 2010 Source: Washington University in St. Louis Summary: Two scientists propose an explanation for the bizarre ridge belting Saturn's ...

Iapetus, you see, is the outermost large moon of Saturn, orbiting twice as far out as any of Saturn's other moons. What appears to be some type of dark debris that collected on the leading side ...

The origin of Iapetus's Janus faces is one of the longest standing mysteries in the solar system, one that has persisted since the moon's discovery by the astronomer Giovanni Cassini in 1671.

Saturn’s Moon Iapetus has a unique feature which was, until recently, a complete mystery. Running along its equator is this weird ridge of mountains. The mountains run exactly along the equator ...

Iapetus, a moon of Saturn, has baffled astronomers since the early days of telescopic observation. It seemed to vanish and reappear without explanation, earning it a mythical status in early ...

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 ...

A massive ridge nearly encircling Saturn's moon Iapetus is likely the remains of a mini-moon destroyed by Iapetus' gravity long ago, a new study suggests. IE 11 is not supported.

With data in from the Cassini probe’s flyby of Saturn’s Iapetus moon last month, scientists are now making progress in understanding the little satellite’s unique features. The moon’s ...

Poring over images of Saturn’s icy moon Iapetus, planetary scientists have discovered massive landslides in which the falling ice travels much farther than should be possible given the ...