NASA's Mars Global Surveyor shows a north polar dust storm on March 7, 2003. White features at the top of the image are the water ice surfaces of Mar's north polar residual cap.

MGS MOC Release No. MOC2-334, 18 April 2003

This composite of Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) wide angle daily global images shows a north polar dust storm on March 7, 2003. Similar late summer storms occurred nearly every day from late February well into April 2003; these were also seen in late summer in 1999 and 2001. The white features at the top of the image are the water ice surfaces of the north polar residual cap. Sunlight illuminates the scene from the lower left.

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