Spring on Mars: A NASA spacecraft has documented thawing ice dunes
The US Space Agency's MRO orbit photographed the melting ice in a 207 km diameter crater in the northern hemisphere's hemisphere. And what does it look like in winter? View photos
Yinon Ben Shoshan
28/03/2022
Monday, 28 March 2022, 12:41 Updated: 13:10
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Mars (Photo: AP)
Spring has also reached the red star:
HiRISE camera, located on NASA's MRO orbit that has been exploring Mars since 2006, photographed the ice dunes in the Kaiser Crater during the thawing process.
The Kaiser Crater is 207 km in diameter and is located in Noachis Terra - West of Las Planetia in the northern hemisphere of Mars.
In winter, the dark sand dunes are covered with an ice orchard, which can be seen in the first image, taken on December 8, 2021 from an altitude of 251 km. The second image shows the beginning of spring on Mars, where the sunny side of the dunes has just begun to thaw.
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Ice on Mars in Winter (Photo: NASA / JPL / University of Arizona)
The ice in the hemisphere of Mars is thawing (Photo: NASA / JPL / University of Arizona)
"Light stains of stagnation are clearly visible and are composed of water ice and carbon dioxide," writes HiRISE team member Susan J. Conway.
"Dark streaks of sand flowed down the dune that sometimes covers the frost. These flows are caused by the rapid conversion of the frost from ice to gas as the sun warms the dune in the spring."
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Mars
NASA