Extraterrestrial Ergs
See also: List of extraterrestrial dune fieldsErgs are a geological feature that can be found on planets where an atmosphere capable of significant wind erosion acts on the surface for a significant period of time, creating sand and allowing it to accumulate. Today at least three bodies, apart from Earth, are known in the solar system to feature ergs on their surface: Venus, Mars and Titan.
Read more about this topic: Erg (landform)