Hidden beauty of Zimbabwe's 2.5 billion-year-old 'geological marvel' revealed in striking astronaut photo — Earth from space
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Hidden beauty of Zimbabwe's 2.5 billion-year-old 'geological marvel' revealed in striking astronaut photo — Earth from space

A 2010 astronaut photo shows off the astonishing scale of the Great Dyke of Zimbabwe, which stretches over 340 miles (550 kilometers). The lengthy structure, which is not actually a dike, is full of extremely valuable minerals that fuel a massive mining industry.