CURIOSITY a repéré des dunes martiennes …
NASA / JPL / Univ. Of Arizona)

A piece of Mars: On martian dunes it’s all about lines, lines, lines. The prominent wavy ones on the left are thought to be erosional scars left by sliding blocks of dry ice. The little fingerprint-like lines are ripples, like those found on any Earth dune. All those lines tell us that the dunes are formed as the wind, ice, and sand interact over time. (826×620 m, ESP_021838_1300, NASA/JPL/Univ. of Arizona) - See more at: http://cosmicdiary.org/#sthash.5Gyfxoa7.dpuf

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A piece of Mars: On martian dunes it’s all about lines, lines, lines. The prominent wavy ones on the left are thought to be erosional scars left by sliding blocks of dry ice. The little fingerprint-like lines are ripples, like those found on any Earth dune. All those lines tell us that the dunes are formed as the wind, ice, and sand interact over time. (826×620 m, ESP_021838_1300, NASA/JPL/Univ. of Arizona) - See more at: http://cosmicdiary.org/#sthash.5Gyfxoa7.dpuf
A piece of Mars: On martian dunes it’s all about lines, lines, lines. The prominent wavy ones on the left are thought to be erosional scars left by sliding blocks of dry ice. The little fingerprint-like lines are ripples, like those found on any Earth dune. All those lines tell us that the dunes are formed as the wind, ice, and sand interact over time. (826×620 m, ESP_021838_1300, NASA/JPL/Univ. of Arizona) - See more at: http://cosmicdiary.org/#sthash.5Gyfxoa7.dpuf
A piece of Mars: On martian dunes it’s all about lines, lines, lines. The prominent wavy ones on the left are thought to be erosional scars left by sliding blocks of dry ice. The little fingerprint-like lines are ripples, like those found on any Earth dune. All those lines tell us that the dunes are formed as the wind, ice, and sand interact over time. (826×620 m, ESP_021838_1300, NASA/JPL/Univ. of Arizona) - See more at: http://cosmicdiary.org/#sthash.5Gyfxoa7.dpuf
A piece of Mars: On martian dunes it’s all about lines, lines, lines. The prominent wavy ones on the left are thought to be erosional scars left by sliding blocks of dry ice. The little fingerprint-like lines are ripples, like those found on any Earth dune. All those lines tell us that the dunes are formed as the wind, ice, and sand interact over time. (826×620 m, ESP_021838_1300, NASA/JPL/Univ. of Arizona) - See more at: http://cosmicdiary.org/#sthash.5Gyfxoa7.dpuf
A piece of Mars: On martian dunes it’s all about lines, lines, lines. The prominent wavy ones on the left are thought to be erosional scars left by sliding blocks of dry ice. The little fingerprint-like lines are ripples, like those found on any Earth dune. All those lines tell us that the dunes are formed as the wind, ice, and sand interact over time. (826×620 m, ESP_021838_1300, NASA/JPL/Univ. of Arizona) - See more at: http://cosmicdiary.org/#sthash.5Gyfxoa7.dpuf
A piece of Mars: On martian dunes it’s all about lines, lines, lines. The prominent wavy ones on the left are thought to be erosional scars left by sliding blocks of dry ice. The little fingerprint-like lines are ripples, like those found on any Earth dune. All those lines tell us that the dunes are formed as the wind, ice, and sand interact over time. (826×620 m, ESP_021838_1300, NASA/JPL/Univ. of Arizona) - See more at: http://cosmicdiary.org/#sthash.5Gyfxoa7.dpuf
A piece of Mars: On martian dunes it’s all about lines, lines, lines. The prominent wavy ones on the left are thought to be erosional scars left by sliding blocks of dry ice. The little fingerprint-like lines are ripples, like those found on any Earth dune. All those lines tell us that the dunes are formed as the wind, ice, and sand interact over time. (826×620 m, ESP_021838_1300, NASA/JPL/Univ. of Arizona) - See more at: http://cosmicdiary.org/#sthash.5Gyfxoa7.dpuf