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Kasei Vallis | NASA Image | Cosmos Observatory | Cosmos Observatory

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Kasei Vallis

Kasei Vallis

The scoured grooves in the catastrophic outflow channels shown in this image from NASA Mars Odyssey spacecraft formed hundreds of million of years ago and have the appearance of wood grain. They now host dune-like ripples of windblown material. http://photojournal.jpl.nasa.gov/catalog/PIA04015

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