'Erebus Crater' on the Horizon

This is a mosaic assembled from some of the images taken by the panoramic camera on NASA's Mars Exploration Rover Opportunity during the rover's 590th sol (Sept. 21, 2005). The view is toward the south and includes rock exposures north of "Erebus Crater," with the crater in the background. The rover will investigate the exposed rocks in the foreground and will take additional panoramic-camera images of Erebus Crater, which is about 300 meters (about 984 feet) across. Erebus Crater dwarfs the landing-site crater, "Eagle Crater," which measures about 22 meters (72 feet) in diameter. And, it is nearly twice the diameter of "Endurance Crater," which, at 130 meters (430 feet) wide, has been compared to a stadium. The camera's red filter was used for taking the images in this mosaic. It admits light with a wavelength of 750 nanometers http://photojournal.jpl.nasa.gov/catalog/PIA06341