The supposed alien heads feature in a black-and-white photograph taken by the Mars Curiosity rover. On the 506th day of its mission, Sol 506, the rover photographed a barren and boulder-strewn field. But self-appointed UFO expert Scott C Waring believes the NASA image features alien artefacts hidden in plain sight.
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In a bizarre analysis shared to his blog UFO Sightings Daily ... Read even more
