Rippled dunes and eroding hills

Rippled dunes and eroding hills

. The surface of Mars is dominated by features created and shaped by the wind, such as these sand dunes in Hebes Chasma. They seem to resemble sand dunes in the Sahara desert on Earth, but probably include finer dust. This image was taken from the Mars Global Surveyor on 13 March 1998. It is 2.3 kilometers wide and centered near 0.8 degrees south and 76.3 degrees west. (Courtesy of NASA, JPL and Malin Space Science Systems.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University