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An impressive, albeit somewhat eerie, picture of a dust devil whirling through a valley on the surface of Mars has been captured by a NASA rover from its perch high on a ridge.

www.rt.com 4-5-16

The photo shows the six-wheeled robot’s tracks in the foreground, leading up the north-facing slope of "Knudsen Ridge", which forms part of the southern edge of "Marathon Valley".

Meanwhile, the dust devil can be seen twisting in the background. While dust devils are common on Mars and have been caught on camera by NASA’s other rover, Spirit, the Opportunity (MER-B) rover had not been so lucky in spotting the red planet’s twisters. [...]
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