This close-up image of a dust storm on Mars was acquired by the Mars Color Imager instrument on NASA's Mars Reconnaissance Orbiter on Nov. 7, 2007. This image is centered on Utopia Planitia.
This global map of Mars was acquired on Oct. 28, 2008, by the Mars Color Imager instrument on NASA's MRO. One global map is generated each day to forecast weather conditions for the entry, descent and landing of NASA's Curiosity rover.
This global map of Mars was acquired on Aug. 2, 2012, by the Mars Color Imager instrument on NASA's Mars Reconnaissance Orbiter. One global map is generated each day to forecast weather conditions for the entry, descent and landing of NASA's Curiosity.
A regional dust storm visible in the southern hemisphere of Mars in this nearly global mosaic of observations made by the Mars Color Imager on NASA's Mars Reconnaissance Orbiter on Nov. 25, 2012, has contracted from its size a week earlier.
This global map of Mars was acquired on Aug. 4, 2012, by the Mars Color Imager instrument on NASA's Mars Reconnaissance Orbiter to forecast weather conditions for the entry, descent and landing of NASA's Curiosity rover.
This nearly global mosaic of observations from 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.
This global map of Mars was acquired on Aug. 5, 2012, by the Mars Color Imager instrument on NASA's MRO. One global map is generated each day to forecast weather conditions for the entry, descent and landing of NASA's Curiosity rover.