Far out in the Saturn system, a small world refuses to behave. Iapetus spins in a way that should not be so stable, wears a ...

On Dec. 31, 2004, NASA’s Cassini spacecraft flew by Iapetus, Saturn’s third largest moon. Iapetus was discovered by the ...

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

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 ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Saturn certainly has some oddball moons and astronomers think they're close to explaining how a ...

Two scientists propose an explanation for the bizarre ridge belting Saturn's moon Iapetus at the equator. At one time Iapetus itself may have had a satellite, created by a giant impact with another ...

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. But the ...

The Cassini spacecraft's flyby of Saturn's moon Iapetus has revealed a bizarre geological feature in its images: a bulging ridge at its equator. Mission scientists have started to release detailed ...

Images returned by NASA's Cassini spacecraft cameras during a New Year's Eve flyby of Saturn's moon Iapetus (eye-APP-eh- tuss) show startling surface features that are fueling heated ...

SAN FRANCISCO --Iapetus, one of Saturn’s weirdest moons, has an enormous equatorial mountain ridge, a spiky belt that rises 12 miles above the moon’s surface. How Iapetus built that belt – the only ...

The mountainous ridge that circles the equator on the Saturnian moon Iapetus is both weird and spectacular. Discovered in 2004, the icy rim is as much as 20km high and runs fully 1,600km from end to ...