The Surface of Gusev - Sol 872 (Approx. True Colors; credits: NASA/JPL-Caltech)

Caption NASA originale:"The Zhong Shan and Allan Hills rocks, at the left and right, respectively, have unusual morphologies and Miniature Thermal Emission Spectrometer signatures that resemble those of a rock known as "Heat Shield" at the Meridiani site explored by Spirit's twin, Opportunity. Opportunity's analyses revealed Heat Shield to be an iron meteorite.

Spirit acquired this approximately true-color image on the Rover's 872nd Martian day (such as June 16, 2006), using exposures taken through three of the PanCam's filters, centered on wavelengths of -600, -530, and -480 nanometers".