PerspectivePlanetary Science

Alien Weather at the Poles of Mars

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Science  19 Nov 2004:
Vol. 306, Issue 5700, pp. 1298-1299
DOI: 10.1126/science.1105669

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Between autumn and winter on Mars, the main constituent of the martian atmosphere, CO, condenses to form ice caps at both poles. In his Perspective, Forget discusses an analysis of the martian atmosphere by the Gamma Ray Spectrometer aboard Mars Odyssey, which reveals unexpected fluctuations in atmospheric composition that create weather with no equivalent on Earth.

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