Juan Carlos Munoz / Aerial view of Delta Sierpe River Terraba, Corcovado National Park, Osa Peninsula, Puntarenas Province, Costa Rica. December 2014.

Olga Kamenskaya / Clouds over Lake Baikal, Siberia, Russia, October 2010.

Andy Rouse / Fish eye aerial view of autumnal forest, Finland, September.

Konrad Wothe / View up into canopy with sun rays shining through the leaves, lowland rainforest, Panguana Reserve, Huanuco province, Amazon basin, Peru.

Peter Cairns / Northern lights (Aurora borealis) over Skagsanden beach, Flakstadoya, Lofoten, Norway. March 2015.

Orsolya Haarberg / Northern lights above the pine forest, Gjenvollhytta, Klaebu. Sor-Trondelag, Norway. March 2013.

Orsolya Haarberg / View over the Lysefjorden from the Preikestolen / Pulpit rock, Forsand, Rogaland, Norway. June 2012.

Chris & Monique Fallows / Wandering albatross (Diomedea exulans) flying off coast of South Georgia Island.

Ole Jorgen Liodden / Arctic tern (Sterna Paradisaea) flying, Svalbard, Norway, July.

Erlend Haarberg / Lysefjorden viewed from the Preikestolen (Pulpit rock) on misty summer morning with sun rays shining down, Forsand, Rogaland, Norway.

David Noton / Aurora Borealis (Northern Lights) over the Klondike River, Yukon Territories, Canada, September 2013.

Sandra Bartocha / Scots pine (Pinus sylvestris) trees in snowy woodland in evening sunlight, Potsdam, Germany, January.