Dunes in Endurance crater on Mars

Dunes in Endurance crater on Mars

Fig. 8.8 . Dust accumulates on the crests of dunes found on the floor of Endurance crater. This false-color image, taken from the Mars Exploration Rover, Opportunity, exhibits a "blue" tint in the flat surfaces between the dune flanks. This tint may be due to mineral-containing, sphere-like "blueberries," which accumulate on the flat surface and may be formed by ancient flows of liquid water. (Courtesy NASA/JPL/Cornell U.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University