Friday, November 20, 2009

Martian Dust-Devil Trails


The HiRISE camera on the Mars Reconnaissance Orbiter shows twisting dark trails criss-crossing light-colored terrain on the Martian surface. Newly formed trails like these had presented researchers with a tantalizing mystery but are now known to be the work of miniature wind vortices known to occur on the red planet — in other words, Martian dust devils. - NASA via HLG

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