This animation strings together images from the rover's front hazard avoidance camera taken during the stand-up process of the Mars Exploration Rover Spirit. The first frame shows the rover's wheels tucked under in pre-stand-up position. The following frames show the stages of the stand-up process. The rover first elevates itself and unfolds the wheels. It then lowers, lifts and lowers again into its final position. Note the changing camera perspectives of the martian landscape, indicating the rover's heightened and lowered positions.