The surface of Mars is dotted with craters, created when asteroids, meteoroids, or comets smashed into the planet and caused large impact marks.
Unlike Earth, which has relatively few impact craters because of its tectonic processes, on Mars, these craters remain for billions of years.
The landscape around the crater shows channels gouged into the surface, which were likely created when water flowed in rivers across Mars billions of years ago. “The channels appear to be partly filled with a dark material, and in some places, seem to actually be raised above the surrounding land,” ESA writes. “There are a variety of possible explanations for this. Perhaps erosion-resistant sediment settled at the bottom of the channels when water flowed through them.
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