This image covers a region of Mars near Nili Fossae that contains some of the best exposures of ancient bedrock on Mars.
The enhanced-color subimage shows part of the ejecta from an impact crater. The impact broke up already diverse rocks types and mixed them together to create this wild jumble of colors, each representing a different type of rock.
Photo credit: NASA/JPL/University of Arizona
Note: The above image is slightly smaller in size (2048 x 1536 px) than what is normally posted on this blog (2560 x 1920 px) due to the fact that the larger image is over the allowable download size for photos onto Blogger.