The rover Opportunity captured a view into Endeavour crater as a low Sun cast a long shadow in this image, acquired back on March 9.
Endeavour is a large crater — 14 miles (22 km) wide, it’s about the same area as the city of Seattle. Opportunity arrived at its edge in August of 2011 after several years of driving across the Meridiani Plains.
Opportunity is currently the only operational manmade object on the surface of Mars… or any other planet besides Earth, for that matter. It’s a distinction it will hold until the arrival of Mars Science Laboratory at Gale Crater this August.
From the NASA news release by JPL’s Guy Webster:
The scene is presented in false color to emphasize differences in materials such as dark dunes on the crater floor. This gives portions of the image an aqua tint.
Opportunity took most of the component images on March 9, 2012, while the solar-powered rover was spending several weeks at one location to preserve energy during the Martian winter. It has since resumed driving and is currently investigating a patch of windblown Martian dust near its winter haven.
Opportunity and its rover twin, Spirit, completed their three-month prime missions on Mars in April 2004. Both rovers continued for years of bonus, extended missions. Both have made important discoveries about wet environments on ancient Mars that may have been favorable for supporting microbial life. Spirit stopped communicating in 2010. Since landing in the Meridiani region of Mars in January 2004, Opportunity has driven 21.4 miles (34.4 kilometers).
Image credit: NASA/JPL-Caltech/Cornell/Arizona State University