Mars From Afar
Sand Dunes
Resembling a group of horseshoe crabs coming ashore, windblown sand
dunes grace the floor of Wirtz Crater. The shape of the dunes
indicates that the wind has blown the sand from the southwest toward
the northeast (lower left to upper right in the image). Illuminated
by sunlight streaming in from the northwest, the scene comprises an
area less than two miles in width.