NASA's Mars Exploration Rover Opportunity used its panoramic camera to record this eastward horizon view on the 2,407th Martian day, or sol, of the rover's work on Mars (Oct. 31, 2010).

A portion of Endeavour Crater's eastern rim, nearly 30 kilometers (19 miles) in the distance, is visible over the Meridiani plain. Endeavour is about 22 kilometers (14 miles) in diameter. The rover team chose Endeavour Crater as a long-term destination for Opportunity in mid-2008, after the rover had investigated the much-smaller Victoria Crater for two years. The rover is headed for a portion of Endeavour's western rim not visible in this image.

This view is presented in approximately true color by combining exposures taken through three filters of the panoramic camera (Pancam) admitting wavelengths of 752 nanometers, 535 nanometers and 432 nanometers.

Opportunity completed its three-month prime mission in April 2004 and has continued working in mission extensions since then.