Not long ago, the Curiosity rover started taking pictures of a fascinating region near mount Sharp that was soon named the Bagnold Dunes.  Dark, sandy, and full of interesting features, the dunes are along the road that Curiosity has to travel before reaching the base of mount Sharp and beginning it’s ascent.  Study of the dunes has revealed major differences from dunes on Earth, and they have Astronomers and Geologists alike asking some interesting questions. The more I see photos of Mars, the more I realize that it’s a lot like Earth.  It has such diverse features and interesting landscapes,...