Mars' Best Illusions

The Infamous Mars "Face" found in 1976 turned out just to be a normal mountain with an interesting shadow pattern.

Since the first time we saw Mars in the sky, people have been dreaming of martians. And since the first time we ever saw close-up images of the planet, people have been seeing objects...Here's a neat little countdown of Mar's best attempts at stoking the Martian fire.
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