The Eye of the Sahara: How This 25-Mile Wonder Fooled Scientists Into Thinking Earth Was Hit by a Space Rock
The Richat Structure in Mauritania spans 25 miles across and was initially believed to be an ancient asteroid impact crater due to its perfect circular rings visible from space. Decades of research revealed it’s actually an eroded geological dome, created by uplift and millions of years of differential erosion that exposed layers of rock dating back over 600 million years.
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