New images of a dry river on Mars.


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New images of a dry river bed on Mars.

Reull Vallis, the river-like structure in these images, is believed to have formed when running water flowed in the distant martian past, cutting a steep-sided channel through the Promethei Terra Highlands before running on towards the floor of the vast Hellas basin. This sinuous structure, which stretches for almost [1000 miles] across the Martian landscape, is flanked by numerous tributaries, one of which can be clearly seen cutting in to the main valley towards the upper (north) side.

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One comment

  • Patrick Ritchie

    Anyone else find it interesting that there are no craters in the river bed but several outside of it? I’m not sure what this might imply, but it definitely stood out to me when looking at these images.

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