qmantoo. May be, but I'm using things that are already defined by NASA to prove that NASA is deceiving the world. Because it is the strongest argument, as if the words of criminal are used against himself in court.
Or else the 'dunes' are something other than sand dunes which happens on both the rock and the ground. Actually, I think you are probably correct because they look very un-dune-like and there is even a strange one over on the left spanning two other rocks. Maybe they are made by beings and serve another purpose. What if there is something going on inside them and they are hollow and sand or rock coloured?
Dunes on Mars, are they in all cases real or just an illusion. Let's look at an example that supports the theory that the sand dunes are used for deception. Seeing dunes form on the stone is very strange. You see the size and relative proportions are the same. This suggests that sand and sand dunes in the picture are not real. The result is: Yet another delusion regarding the existence of various actions on other planets.