In its heyday, Petra was once the thriving capital of the Nabataean Kingdom. Carved out of rose-colored cliffs, this ancient city, once a massive hub for trade, features façades and tombs dating ...
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Earth's crust may be building mountains by dripping into the mantleNext, she'd like to investigate lithospheric dripping under the Appalachian Mountains, which were once at least as high as the modern Himalayas.
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