Stefan Christmann / Emperor penguin (Aptenodytes forsteri) breeding colony, males huddling on sea ice during polar night, incubating eggs, ice shelf in background. Atka Bay, Antarctica. July 2017.
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Stefan Christmann / Emperor penguin (Aptenodytes forsteri) colony huddled during polar night, males incubating eggs. Atka Bay, Antarctica. July 2017.
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Stefan Christmann / Emperor penguin (Aptenodytes forsteri) males huddling whilst incubating eggs,under full moon during polar night, Atka Bay, Antarctica. July.
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Stefan Christmann / Emperor penguin (Aptenodytes forsteri) colony huddling, males incubating eggs, on sea ice under full moon in polar night. Atka Bay, Antarctica. July 2017.
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Stefan Christmann / Member of BBC Dynasties crew photographing on sea ice in light of full moon, during polar night. Atka Bay, Antarctica. July 2017.
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Stefan Christmann / Sea ice, during polar night. Atka Bay, Antarctica. July 2017.
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Stefan Christmann / Sea ice and iceberg during polar night. Atka Bay, Antarctica. July 2017.
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Stefan Christmann / Moon bow, a halo around the moon during polar night. Sastrugi on sea ice in foreground. Atka Bay, Antarctica. June.
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Stefan Christmann / Milky way and moonbow halo during polar night. Above Neumayer-Station III, Alfred-Wegener-Institut research station, Atka Bay, Antarctica. June 2017.
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Stefan Christmann / Moon rising over sea ice during polar night. Atka Bay, Antarctica. June 2017.
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Stefan Christmann / Stars and milky way over Neumayer-Station III, Alfred-Wegener-Institut research station. During full moon. Atka Bay, Antarctica. April 2017.
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Jack Dykinga / Aurora Borealis reflected in Polar Lake, conifers silhouetted at edge. Near Great Slave Lake, Northwest Territories, Canada. September 2018.
