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This 180-degree panorama shows the southward vista from the location where Spirit is spending its third Martian winter inside Mars' Gusev Crater. The rover's overwintering location is on the northern edge of a low plateau informally called "Home Plate," which is about 80 meters or 260 feet in diameter.
This view combines 168 different exposures taken with Spirit's panoramic Camera (Pancam) -- 42 pointings with 4 filters at each pointing. Spirit took the first of the images that are combined into this view during the mission's 1,477th Martian day, or sol, (February 28, 2008). That was two weeks after the rover made its last move to reach the location where it would stop driving for the winter. Solar energy at Gusev Crater is so limited during the Martian southern hemisphere winter that Spirit does not generate enough electricity to drive, nor even enough to take many images per day. The last frame for this mosaic was taken on Sol 1,599 (July 2, 2008). The rover team plans for Spirit to finish taking images for the northern half of the scene during the Martian spring.
Originally posted by QBSneak000
I was also going to say that perhaps the lighter (whiter) portions of the rocks and other spots is just ice?
A thin layer of water frost is visible on the ground around NASA's Phoenix Mars Lander in this image taken by the Surface Stereo Imager at 6 a.m. on Sol 79 (August 14, 2008), the 79th Martian day after landing. The frost began to disappear shortly after 6 a.m. as the sun rose on the Phoenix landing site.