From space this mysterious depression in the Sahara Desert of Mauritania really does look like a human eye. The image to the left is the “pupil” but a visit to Google Earth zoomed out a little will reveal the cliffs that make up the rest of the eye. This natural phenomenon is actually a richat structure caused by the dome shaped symmetrical uplifting of underlying geology now made visible by millennia of erosion. Please note that this explanation is not wholly accepted by the scientific community. There still remain academics that believe it is the sight of a meteor impact and yet others still that believe it resembles the formations caused by underground nuclear blasts. By the way, we estimate that the detonation would have had to be in the gigaton range. Currently no country in the world has a weapon even close to this destructive yield.
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