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A woman on a slide and the red evening sky in the back at the Kongsfjorden glacier in Ny-Alesund on Spitsbergen, Norway, 10 April 2015. Since 2003, German and French researchers have been working in the Arctic research base AWIPEV, the former mining settlement in the archipelago of Svalbard. Scientific work includes the observation of the Arctic stratosphere and the examination by oceanographers, marine geologists, ice physicists of the life in and around the Polar Sea. Photo: Jens Büttner/dpa | usage worldwide (KEYSTONE/DPA/Jens Büttner)