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Kongsvegen glacier and stratified rock. This is part of the terminal face of this tidewater glacier at the point where it reaches the sea. The stratified rocks in the background are part of the Kongsfjorden, the fjord where the glacier terminates. The rocks of such fjords are shaped and formed by the previous advance and retreats of glaciers over this landscape. Kongsvegen is located in the west of Spitsbergen, an island in Svalbard, an Arctic archipelago governed by Norway. (KEYSTONE/SCIENCE PHOTO LIBRARY/DR JUERG ALEAN/SCIENCE PHOTO LIBRARY)