The incredible 1,500ft deep gorge that's Europe's Grand Canyon
This almighty gorge is a true wonder of the natural world and has been dubbed the “ Greek Grand Canyon”. This is due to its ...
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Two Grand Canyon-size valleys on the far side of the moon formed within 10 minutes, scientists say
(CNN) — About 3.8 billion years ago, two massive canyons likely formed on the moon in a span of less than 10 minutes, according to new research. The extraordinary formations, each comparable in ...