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Birthday · December 24, 2002

Spring Dust Storms at the North Pole of Mars

December 24, 2002

The story of your birthday began billions of years before calendars existed, in furnaces of light and clouds of dust.

Spring Dust Storms at the North Pole of Mars

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APOD published December 24, 2002. Full image credits are on the original APOD entry below. A publication-date match, not a photo taken on your date. Independent of NASA.

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Spring Dust Storms at the North Pole of Mars

Original APOD · December 24, 2002

Spring reached the north pole of Mars in May, and brought with it the usual dust storms. As the north polar cap begins to thaw, a temperature difference occurs between the cold frost region and recently thawed surface, resulting in swirling winds between the adjacent regions. In the above image mosaic from the Mars Global Surveyor spacecraft currently orbiting Mars, the white material is frozen carbon dioxide that covers much of the extreme north. The choppy clouds of at least three dust storms can be identified.

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