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One Days Temperature Map
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One Day's Temperature Map

October 20, 2009
The Thermal Emission Spectrometer on NASA's Mars Global Surveyor provided the first systematic study of Martian weather. For three Mars years, TES operated much like a terrestrial weather satellite, making daily weather maps to track changes in atmospheric temperature, water-ice clouds, water vapor, and dust. This map shows temperatures on Mars on Sept. 10, 2006.