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Geoff K
This may look like an elaborate tattoo, but it is actually a Martian windstorm. .. The photo shows twisting dark trails criss-crossing with lighter coloured terrains that cover the surface of Mars. The dark trails are the result of miniature whirlwinds known as dust devils: spinning columns of warm air that rise and become visible as they pick up... - http://getbiglittlekid.tumblr.com/post...
This may look like an elaborate tattoo, but it is actually a Martian windstorm.
 
..
 
The photo shows twisting dark trails criss-crossing with lighter coloured terrains that cover the surface of Mars. The dark trails are the result of miniature whirlwinds known as dust devils: spinning columns of warm air that rise and become visible as they pick up the loose red dust, leaving the heavier and darker-coloured sand visible beneath.
 
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