This image comparison shows a view through a Hazard-Avoidance camera on NASA's Curiosity rover before and after the clear dust cover was removed. Both images were taken by a camera at the front of the rover. Mount Sharp, the mission's ultimate destination, looms ahead.
Mt Sharp is around 17,900 feet, which many of the posters on the board have reached. Getting to the trailhead is a bit tougher, though.
