tenuous: Clouds over Mars, photographed by Mars Express, 6th June 2008.

81°N 248°E to about 24°N 270°E, on the Vastitas Boralis just south of the Rupes Tenuis, a cliff forming part of the edge of the north polar plateau. The dark region in the 2nd image is a small dune sea, and the clouds seen may be high-altitude water-ice clouds. 

Drawn from the martian Classical melange, tenuis is a Latin word meaning thin or fine, from whence the English tenuous.

Composite of 5 frames.

Image credit: ESA. Animation: AgeOfDestruction.


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