This view from NASA's Mars Exploration Rover Opportunity shows bedrock
within a stratigraphic layer informally named "Lyell," which is the
lowermost of three layers the rover has examined at a bright band around
the inside of Victoria Crater.
Opportunity used its panoramic camera (Pancam) to capture this image with
low-sun angle at a local solar time of 3:21 p.m. during the rover's
1,433rd Martian day, of sol (Feb. 4, 2008).
This view combines separate images taken through the Pancam filters
centered on wavelengths of 753 nanometers, 535 nanometers and 432
nanometers. It is presented in a false-color stretch to bring out subtle
color differences in the scene.