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Martian Plain Frozen in Ice.

Before us are dark dunes, covered in a thin layer of frost.
This is not the familiar frost, since the cold on the red planet is harsh - at night and in the middle of winter, not only water vapor, but also carbon dioxide condenses from the Martian atmosphere. From it, a thin layer of crystals can form when the temperature approaches minus 80 degrees Celsius, which is normal for Martian winter. It can even be much lower.

The frost from the mixture of water crystals and carbon dioxide does not forever cover the dunes. Already in the spring it will disappear and the sand will continue to move across the cold and dry planet, creating intricate dark patterns!❄️
TG Космос в кармане 21.11.2022

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