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Naked Science - Grand Canyon
Seizoen: 5 - Aflevering: 1 / 70 - Eerst uitgezonden: 11 februari 2008 - Episode ID: 418946
The Grand Canyon is a natural wonder so large it can be seen from space. Examining the layers of rock exposed from centuries of of erosion, geologists trace the canyon back to its early days when the Colorado River first began to flow through the region.