NASAのインスタグラム(nasa) - 5月7日 03時42分

Swipe to explore a portion of a 360º mosaic from the Mastcam on our Curiosity Mars rover made from 115 individual images taken on March 24 and 25, 2017, during the 1,647th Martian day, or sol, of Curiosity's work on Mars. This image looks out over a portion of the Bagnold Dunes, which stretch for several miles. From early February to early April 2017, the rover examined four sites near linear dunes for comparison with what it found in late 2015 and early 2016 during its investigation of crescent-shaped dunes. This two-phase campaign is the first close-up study of active dunes anywhere other than Earth.

Among the questions this Martian dune campaign is addressing is how winds shape the dunes into different patterns. Others include whether Martian winds sort grains of sand in ways that affect the distribution of mineral compositions, which also would have implications for studies of Martian sandstones. This mosaic is white-balanced so that the colors of the colors of the rock and sand materials resemble how they would appear under daytime lighting conditions on Earth.

Image Credit: NASA/JPL-Caltech/MSSS
#nasa #mars #planet #redplanet #solarsystem #marscuriosity #rover #sanddunes #dunes #mastcam #pano #panorama

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