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"There is nothing so far removed from us to be beyond our reach, or so far hidden that we cannot discover it."
Rene Descartes

This image combines several layers of images shot above Tassili n'Ajjer in Algeria by the Landsat satellite (using infrared, near-infrared, and visible light) in the year 2000. The first shows the original image, the two following I cut out in original resolution.

201214   |   photo geography earth mountain rock sand river rainbow