Saturn's moons are packed with mystery and alien landscapes, but as shown in this flyby observation of Titan, some surface features have a very Earth-like flavor.

Although Titan's thick atmosphere sluggishly blows at a speed of around 1 meter per second, it's enough to drive the formation of vast aeolian (wind-blown) features. Alongside Mars, Titan can be considered a "dune world," where around 13 percent of the moon's surface is filled with dune fields.

Top 10 Places To Find Alien Life

These dunes are not built with the same stuff that we are accustomed to, however. On Earth, wind-blown silicate sand accumulates; on Titan, the wind-blown 'sand' is composed of tiny dry grains of hydrocarbons -- organic compounds that have inspired hypotheses for Titan's life-giving potential.

The above observation of Titan's dunes was acquired by Cassini's Titan radar mapper on July 10, 2013, during the mission's T-92 flyby. The spacecraft buzzed the moon at a distance of only 599 miles (964 kilometers).

Source: ESA