Tantalizing Tectonics: Monstrous “Claw Mark” Scratches on the Surface of Mars

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This network of long grooves and scratches forms part of a giant fault system on Mars known as Tantalus Fossae, and is shown here as seen by the European Space Agency’s Mars Express. At first glance, these features appear to be the result of someone raking their fingernails, or claws, across the surface of the Red Planet, gouging out long trenches in the process. While not quite so dramatic in...

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