In this navigation camera raw image, NASA's Opportunity Rover looks back over its own tracks on Aug. 4, 2010.
NASA's Jet Propulsion Laboratory, a division of Caltech in Pasadena, California, manages the Mars Exploration Rover Project for NASA's Science Mission Directorate in Washington.
For more information about Opportunity, visit https://www.nasa.gov/rovers and https://mars.nasa.gov/mer.