Inhabited entirely by robots, Mars is the enigmatic planet that is under intense exploration by humanity.  The curiosity rover has been making it’s way closer to Mount Sharp in the Gale Crater, intending to slowly climb the mountain, sampling rocks from different eras in Mars’ history along the way.  One of the last regions to cross before beginning its ascent is the region known as the Bagnold dunes, strange dark features similar to sand dunes on Earth.  Photos from Curiosity show the beauty and detail in the dark features. The dark dunes have very interesting ripple features, similar to those...