Sugi

ALT A top-down view of an avalanche plunging down a cliff. Reddish dust is kicked up into the air at top left. Credit: NASA/JPL-Caltech/University of Arizona

ALT Sand dunes in the north polar regions of Mars have light coatings of pale orange dust partially covering the dark sand. White patches of seasonal dry ice line the edges of the dunes. Credit: NASA/JPL-Caltech/University of Arizona

ALT An impact crater with a sharp rim seen from above. Most of the landscape is orange, while the steep inner slope on the north side of the crater is a deep blue-black. Credit: NASA/JPL-Caltech/University of Arizona

ALT A fresh impact crater (at time of the image capture) is surrounded by a large blast zone with dark rays stretching outward from the crater. The crater itself looks light blue. Credit: NASA/JPL-Caltech/University of Arizona