High Resolution Imaging Science Experiment

This image from NASA's Mars Reconnaissance Orbiter shows a streamlined form in Lethe Vallis – See pic!

Check out: Beautiful view of frosted sand dunes on Mars

See pic - Jarosite in the Noctis Labyrinthus region of Mars!

See pic: Ophir Chasma from NASA's Mars Reconnaissance Orbiter!

NASA maps sand dunes on Mars

NASA's Mars orbiter reveals stunning images of Acidalia Planitia featured in 'The Martian'

Picture: Dark, recurring streaks on walls of Garni Crater on Mars