Martian dust devils leave trails reminiscent of tattoos on the planet surface
Posted 10.26.2009 at 11:30 am
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Martian Tats: That's no skin NASA, HiRISE, MRO, LPL (U. Arizona)
Dust devils on both Mars and Earth represent spinning columns of rising air heated by a warm surface, such as in dry desert areas. NASA's Phoenix Mars Lander photographed some spinning vortices as they swept by, and the dust devils have often received credit for cleaning the solar panels on the Mars rovers that continue to roam with Energizer-like persistence.
The latest picture of the dust devils at work comes courtesy of the HiRISE camera on NASA's Mars Reconnaissance Orbiter.
[NASA]
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what r those black smokey things
i dont get it.
Suyesh/Extremechiton. The top layer of sand is reddish/pale in this photo, where the dust devils have passed up they have disturbed this layer revealing the darker layers beneath.