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Radar Reveals Former Warm Landscape Under Greenland

Under the world's fastest moving glacier, radar has revealed a network of V-shaped canyons carved by temperate rivers.

Lost Civilizations: Human History Hidden in Plain Sight

New imaging techniques have revealed extensive ancient human settlements in two very different remote environments.

Grand Canyon Demoted by New Discovery

A canyon longer than Grand Canyon has been discovered under the ice of Greenland. Scientists are surprised that it has persisted through the ice ages.
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