Mars: The southern polar cap			7.1a
			The southern polar cap of Mars during local summer when it was at its minimum extent, as seen by the Viking orbiters. The view is about 700 km across.
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Image Credit: NASA
The southern polar cap of Mars during local summer when it was at its minimum extent, as seen by the Viking orbiters. The view is about 700 km across.		Mosaic of Viking 2 Orbiter images of the south pole of Mars. The images used to make this picture were obtained during orbit 407 on 28 September 1977. The south pole is just below the center of the frame, at the lower right edge of the polar cap. The zero degree line of longitude is up. The cap is about 400 km across in this image, taken during southern winter. (Viking 2 Orbiter MG90S000-407B)
		text credits: (top & left) David A. Rothery (above) U.S. Geological Survey	Return to top of page