Exploring Meridiani Planum
[The original image scale is 54.1 centimeters (21.3 inches) per pixel (with 2 x 2 binning); objects on the order of 162 centimeters (63.8 inches) across are resolved.] North is up.
NASA's Opportunity rover has spent 13 years exploring a small region of Meridiani Planum which has a rather ordinary appearance as seen by NASA's Mars Reconnaissance Orbiter (MRO).
Other portions of Meridiani are much more interesting, with well-exposed layered bedrock eroded into strange patterns.
The University of Arizona, Tucson, operates HiRISE, which was built by Ball Aerospace & Technologies Corp., Boulder, Colorado. NASA's Jet Propulsion Laboratory, a division of Caltech in Pasadena, California, manages the Mars Reconnaissance Orbiter Project for NASA's Science Mission Directorate, Washington.