Saturn's moon Titan has dunes

The latest images of NASA's Cassini probe reveal Titan, Saturn's largest moon, has seas of sand, complete with Earth-like dunes.

The dunes are up to 150 meters (500 feet) tall and hundreds of kilometers long, dominating large areas of Titan's surface near the equator.

They are long, linear dunes similar to a type commonly seen in Namibia (see map), the Sahara, parts of Australia, and the Arabian Peninsula.

The discovery was surprising, says Ralph Lorenz, a researcher with the Lunar and Planetary Lab based at the University of Arizona in Tucson.

According to scientists these dunes are mainly caused by tidal winds. More details at NGC.