Sand Dunes and Ripples on Mars

These high resolution images of space scenes are matted to perfection on quality card-stock board and feature a description of the image on back.

From NASA's Mars Reconnaissance Orbiter, we have this image that shows sand ripples in Mars' Proctor Crater. From their study on Earth, and close-up examination by the MER rovers, we know that ripples are composed of fine sand.

Image property of NASA.

Sand Dunes and Ripples on Mars
All images Astrolith Graphic Products, inc. and John C. Wittenberg unless otherwise identified.