NASA Image of the Day: Wind Carved Rock on Mars

Wind Carved Rock on Mars The distinctively fluted surface and elongated hills in this image in Medusae Fossae are caused by wind erosion of a soft fine-grained rock. Called yardangs, these features are aligned with the prevailing wind direction. This wind direction would have dominated for a very long time to carve these large-scale features into the exposed rock. November 09, 2016 from NASA via IFTTT