Carnegie Lake, Australia, 1999 Carnegie Lake in Western Australia fills with water only during periods of significant rainfall. In dry years, it is reduced to a muddy marsh. Flooded areas appear dark blue or black, vegetation appears in shades of dark and light green, and sands, soils and minerals appear in a variety of colors. NASA hide caption

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Rudi Kistler and Maurus Oehmann, Mannheim 2012 Courtesy of Francois Brunelle hide caption

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Have We Met Before? Doppelgangers Caught On Camera

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