Two parallel tracks left by the wheels of NASA's Curiosity Mars rover cross rugged ground in this portion of a December 11, 2013, observation by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter. The rover itself does not appear in this part of the HiRISE observation.
Curiosity has been on the move. By the time this image was taken, it had driven about 2.86 miles (4.61 kilometers) since its August 2012 landing in Gale Crater. This enhanced color image shows where the rover zigzagged to avoid steep slopes and other obstacles on its route toward its long-term destination on the lower slopes of Mount Sharp. Curiosity is progressing from a bright dust-covered area to a region with a darker surface, where windblown sand scours the surface relatively free of dust. For scale, the two parallel lines of the wheel tracks are about 10 feet (3 meters) apart.
The image is one product from HiRISE observation ESP_034572_1755. Other image products from this observation are available at http://uahirise.org/ESP_034572_1755.
Photo credit: NASA/JPL-Caltech/University of Arizona
Note: For more information, see PIA17755: Curiosity Trekking, Viewed from Orbit in December 2013 and Mars Orbiter Images Rover and Tracks in Gale Crater.