On December 12, 2021, the navigation camera aboard NASA's Curiosity rover took two 1-second-8-frame images of the Red Planet's atmosphere. Unlike clouds here on Earth, clouds on Mars are very faint in the atmosphere, so it took special imaging techniques to see them. The clouds are also very high, some 80 km (about 50 miles) above the surface. It is extremely cold at this height, which suggests that these are carbon dioxide ice clouds and not water ice clouds (which can be found at lower altitudes). Literally cool.
(Images: NASA/JPL-Caltech/York University)
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