This image shows the path the
Mars Exploration Rover Spirit traveled during its 24-meter (78.7-foot)
autonomous drive across the bumpy terrain at Gusev Crater, Mars,
on the 39th day, or sol, of its mission. The colored data points
are from the rover's hazard-avoidance camera and have been reconstructed
to show the topography of the land. Red areas indicate extremely
hazardous terrain, while green patches denote safe, smooth ground.
At the end of its drive, Spirit decided it was safer to back up
then go forward. The rover is now positioned directly in front
of its target, a rock dubbed Stone Council.
