Dry frost on the surface of Mars. A remarkable discovery by NASA scientists

Scientists had seen a white-and-blue coating in some places before, but only looking at the same places using a thermal camera gave unusual results. There was much more frost than seen in the previous photos. So where does this discrepancy come from? On the surface of the Red Planet there is the so-called dry frost, i.e. frozen carbon dioxide. According to experts, it is invisible due to the rare atmosphere on Mars. It accumulates overnight and disappears at dawn in just a few minutes. Carbon dioxide does not melt, it even disappears, it evaporates as soon as the sun’s rays begin to fall on it. What makes it difficult to see in satellite photos is that frost is mixed with dust that simply masks it.

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