Pareidolia : the tendency to perceive a specific, often meaningful image in a random or ambiguous visual pattern. The scientific explanation for some people is pareidolia, or the human ability to see shapes or make pictures out of randomness. Think of the Rorschach inkblot test. Mars Images:
Well, it appears to be using a tinted lens in the one that has all the blue, maybe to help make the image clearer. It reminds me of The Twilight Zone episode with the Giant spacemen on a planet of tiny people. If there is no air in space how can there be wind storms on all these planets we're exploring. On Mars there are surface winds on the planet. So Planets that have no wind storms, how do they continue to change shape and size. Lots of questions