Monday, November 26, 2012

NASA Tracks Big Dust Storm on Mars

This nearly global mosaic of observations made by the Mars Color Imager on NASA's Mars Reconnaissance Orbiter on Nov. 18, 2012, shows a dust storm in Mars' southern hemisphere. Small white arrows outline the area where dust from the storm is apparent in the atmosphere.

 

A NASA spacecraft is keeping tabs on a vast dust storm on Mars that has spawned changes in the Martian atmosphere felt by two rovers on the planet's surface.

The Martian dust storm was first spotted by NASA's Mars Reconnaissance Orbiter (MRO) on Nov. 10 and has been tracked ever since. The agency's Mars rover Opportunity has seen a slight drop in atmospheric clarity due to the storm. Meanwhile the newer Curiosity rover — which has a built-in weather station — has seen a drop in air pressure and slightly increased nighttime temperatures halfway around the planet from Opportunity, NASA officials said.

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