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Planetary science

Jumping grains on Mars

Liquid water on Mars may be an agent of surface change, but it is unstable under the thin atmosphere. Experiments suggest water percolating though Martian hillslopes ejects sediment as it boils under the low pressure, and modifies the landscape.

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Figure 1: Slope streaks on Mars as observed from orbit.

NASA/JPL/UNIVERSITY OF ARIZONA

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Correspondence to Wouter A. Marra.

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Marra, W. Jumping grains on Mars. Nature Geosci 9, 414–415 (2016). https://doi.org/10.1038/ngeo2718

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