Some of the satellite images of Mars are just absolutely astonishing. Images of the big red planet reveal avalanches, sand dunes, and much more. Here's a little bit from the article and some pictures.
"The HiRISE has uncovered a wealth of information in a canyon bank at Chasma Boreale at Mars’s north pole. Here, the canyon has eroded to reveal layers of minerals and other materials. The layers are rich in water ice, while the dark material toward the bottom is most likely sand dunes. These layers are helping scientists decode Mars’s recent climate variations."
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