Scientists have modelled the internal workings of lightning-filled "rocket dust storms" on Mars that rise at speeds 100 times faster than ordinary storms and inject dust high into the Martian atmosphere.
The Red Planet is a very dry and dusty place, with global storms that sometimes obscure the entire surface. Satellites orbiting Mars have seen persistent dust layers reaching very high altitudes, as much as 30 to 50 kilometres above the ground, though scientists are at a loss to explain exactly how the dust got there.
By: Adam Mann, Edited by: David Cornish
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via Wired.co.uk
http://www.wired.co.uk/news/archive/2013-01/28/mars-rocket-dust-storms
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