This was
your sky.

The Sand Dunes of Titan

Titan, Saturn's largest moon, has vast sand dunes, some of which appear to be oriented backwards. Images from the Cassini spacecraft revealed long rows of these huge dunes near Titan's equator, rising as high as 300 meters. Shadows indicate most dune shapes are formed by winds blowing from the west. However, the typical wind at Titan's equator blows from the east, posing a puzzle for scientists.