Peeling Back the Layers of Mars
Jet Propulsion Laboratory https://www.jpl.nasa.gov/ Feb. 17, 2004
This is a 3-D model of the trench excavated by the Mars Exploration Rover Opportunity on the 23rd day, or sol, of its mission. An oblique view of the trench from a bit above and to the right of the rover's right wheel is shown. The model was generated from images acquired by the rover's front hazard-avoidance cameras.