The photo was taken in March and NASA released it this week. The solar-powered, six-wheel rover was at an outcrop on the rim of a massive crater. The late afternoon sun set the crater aglow and Opportunity waited for just the right lighting to send a postcard back to Earth.
The result was a dramatic view of Opportunity casting a shadow with the crater in the background.
After nearly five months in one spot, the tireless rover is rolling again to explore more rocks.
Its twin, Spirit, stopped communicating in 2010.