Dust storms are windstorms that severely blow dust clouds across a large area in arid or semi-arid regions. Dust storms are different from dust devils, which are small atmospheric dust-filled vortices created by differences in surface heating during...

A dust storm or sandstorm is a meteorological phenomenon common in arid and semi-arid regions and arises when a gust front passes or when the wind force exceeds the threshold value where loose sand and dust are removed from the dry surface. Particles...

Byline: Darrell Smith Fast Facts * Farmers in California's San Joaquin Valley found to be in a "non-attainment" area where air does not meet EPA standards must implement practices to control dust particles of 10 micrometers in diameter-about one-seventh the diameter...

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They're old and dirty, but NASA's Mars rovers are back in the exploration business after enduring a lengthy Red Planet dust bowl that blocked most of the sunlight they need for power.With skies gradually brightening, the solar-powered rovers Spirit and Opportunity recently resumed driving and...

Ranching, mining, energy exploration and other activities that raise dust in the West are helping diminish the snowpack that supplies much of the region's water, a new study says.Colorado scientists reported Tuesday that dust is blowing from the deserts onto the state's snowcapped mountains, absorbing...