This panoramic shot of the surface of Mars shows an impact crater blasted billions of years ago - and the fresh tracks created by Nasa's Mars Exploration Rover Opportunity. Use the zoom tool to see the view in more detail. The scene, which is made up of 817 images taken between December 2011 and May 2012, also includes the rover's own solar arrays and deck in the foreground. Its publication coincided with Opportunity completing its 3,000th day on Mars.