UFO watchers are speculating online that a NASA image of a Martian landscape may show an alien skull, reports the Telegraph. "There appears to be a narrow pointed small mouth, so this creature most likely is a carnivore," noted one. An image that looked surprisingly like a skull that made the Internet rounds three years ago is now believed to be the result of tampering. A famous "Martian face" photographed in the 1970s turned out to be a trick of light.
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