Spirit's Race against Winter

Caption NASA:"While struggling to reach a Winter Outpost necessary for survival on Mars, Spirit has been slowed by sand in the bottom of a shallow, bowl-like depression. Spirit's goal is to reach a slope on the North Edge of Home Plate that will keep its Solar Panels trained on the Sun.

If the Rover can collect enough sunlight to survive, Spirit will continue to study terrain near Home Plate, which the rover reached after crossing the floor of Gusev Crater and scaling the Columbia Hills. This map shows the Rover's progress from July 2004 to November 2007".