1387-905 - Northern Lights in the arctic wilderness, Nordland, Norway.

1387-904 - Aurora Borealis over Nova Mountain Wilderness, Troms, Norway.

1387-903 - Moonlight and aurora borealis, Forramarka, Troms, Norway.

1387-902 - A fiery sunrise over Lavangsfjord, Troms, Norway.

1387-901 - Northern Lights in the arctic wilderness, Nordland, Norway.

1387-900 - Northern Lights in the arctic wilderness, Nordland, Norway.

1387-899 - Northern Lights in the arctic wilderness, Nordland, Norway.

1387-898 - Aurora Borealis over a frozen river, Klubbfjellet Mountain, Nordland, Norway.

1387-897 - Aurora Borealis over a frozen river, Klubbfjellet Mountain, Nordland, Norway.

1387-895 - Aurora Borealis over a frozen river, Klubbfjellet Mountain, Nordland, Norway.

1387-896 - Aurora Borealis, Tennevik Lake, Troms, Norway.

1387-894 - Aurora Borealis, Forramarka, Troms, Norway.

1387-893 - Aurora Borealis, Forramarka, Troms, Norway.

1387-891 - Aurora Borealis over Vagsfjorden outside of Harstad in Northern Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-890 - A fantastic eruption of Aurora Borealis over Toviktinden Mountain in Troms County, Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-889 - Aurora Borealis over Tjeldsundet in Troms County, Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-888 - Aurora Borealis and a shooting star in the woods of Troms County, Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-887 - Aurora Borealis over Tennevik River in Troms County, Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-884 - A rare sight in Tjeldsundet, Troms County, Norway. Ice flakes drifting in the sunset looking towards the mountains on Tjeldoya Island.

1387-883 - A frozen Straumen Lake on Tjeldoya Island in Nordland County, Norway. Strandtindan Mountain is in the background.

1387-882 - Aurora Borealis reflects off the Tennevik River, Troms County, Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-881 - Durdle Door in Dorset, England.

1387-880 - Aurora Borealis over Tennevik River in Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-879 - Aurora Borealis over Vagsfjorden in Troms County, Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-878 - Aurora borealis over Blafjellet Mountain in Troms County, Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-877 - Aurora Borealis and a full moon over the Blafjellelva River in Troms County, Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-876 - A magnificent display of aurora borealis shooting up from Toviktinden Mountain in Troms County, Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-875 - Aurora Borealis over Skittendalen Valley and the Skittendalen River in Troms County, Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-874 - Aurora Borealis over Forramarka Woods in Tennevik, Troms County, Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-873 - Aurora Borealis over Skittendalen Valley and the Skittendalen River in Troms County, Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-872 - Aurora and a Full Moon over Tennevik River, Troms County, Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-870 - Alcudia Beach pier in Mallorca, Spain.

1387-871 - A winter view looking out in Tjeldsundet strait towards the Saetertinden mountain in Troms County, Norway.

1387-869 - Sunset over Tjeldsundet, Troms County, Norway. Saetertinden and Harberget Mountains are visible in the background.

1387-868 - Sunset over Tjeldsundet, Troms County, Norway. Saetertinden and Harberget Mountains are visible in the background.

1387-867 - Aurora Borealis over Skittendalstinden in Troms County, Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-866 - Aurora over Tjeldsundet and Saetertinden Mountain in Troms County, Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-865 - Geology lines in Sandvannet Lake, Nordland County, Norway. The Glomfjord Mountains are visible on the horizon.

1387-864 - Rock formations on Glomfjordfjellet Mountain in Nordland County, Norway.

1387-863 - Roasto Falls in Nordland County, Norway.

1387-862 - Midnight Sun over Vagsfjorden, Skanland, Troms County, Norway

1387-861 - Aurora Borealis over Mikkelfjellet Mountain in Troms County, Norway. Auroras are the result of the emissions of photons in the Earth's upper atmosphere.

1387-1549 - Perito Moreno glacier, Lago Argentino, Argentina.

1387-1548 - Old ice breaking under newer ice when the lake froze, Lake Baikal, Russia.

1387-1547 - Person hiking on Matanuska Glacier, Alaska.

1387-1546 - Panorama of Perito Moreno glacier, Lago Argentino, Argentina.

1387-1545 - Neko Harbor, Antarctic Peninsula.

1387-1541 - Rock formation protruding from the frozen lake, Lake Baikal, Russia.

1387-1537 - Perito Moreno glacier, Lago Argentino, Argentina.

1387-1536 - Perito Moreno glacier, Lago Argentino, Argentina.

1387-1535 - Aerial view of Mount McKinley, Alaska.

1387-1534 - Old ice breaking under newer ice when the lake froze, Lake Baikal, Russia.

1387-1533 - Aerial view of Mount McKinley, Alaska.

1387-1532 - Perito Moreno glacier ice breaks into the lake, Lago Argentino.

1387-1531 - Stream of air bubbles caught in the ice when the lake froze, Lake Baikal, Russia.

1387-1529 - Lake inside a crater, Iceland.

1387-1527 - Iceberg around the island, Spitsbergen, Norway.

1387-1526 - Arctic view, Spitsbergen, Norway.

1387-1524 - Inside a frozen cave, Lake Baikal, Russia.

1387-1371 - A school of orange basslets (Pseudanthias squamipinnis) on a healthy Fijian reef full of hard and soft corals, Fiji.

1387-1358 - Teardrop Butterflyfish swim within a protective coral arch, Fiji.

1387-1357 - A school of orange basslets (Pseudanthias squamipinnis) on a healthy coral reef, Fiji.

1387-1356 - A school of orange basslets (Pseudanthias squamipinnis) on a healthy coral reef, Fiji.

1387-1338 - Purple sponge on a deep reef, Bonaire, Caribbean Netherlands.

1387-1335 - A large group of purple tube sponge sits high on the reef, Bonaire, Caribbean Netherlands.The Hilma Hooker Shipwreck is visible in the background.

1387-1266 - October 19, 2013 - Eruption of Kliuchevskoi (Klyuchevskoy) Volcano, Kamchatka, Russia. Ash and steam cloud are blown away by wind. View over industrial area of Kliuchi town with Kamchatka River in foreground.

1387-1252 - December 3, 2012 - Colourful crater lakes of Kelimutu volcano, Flores Island, Indonesia. Tiwu Nua Muri Kofah (Lake of Young Men and Maidens) and Tiwu Ata Polo (Bewitched Lake). The two lakes are highly acidic due to underwater fumarole activity and are turqoise in colour.

1387-1251 - December 3, 2012 - Colourful crater lakes of Kelimutu volcano, Flores Island, Indonesia. A crater wall separates Tiwu Nua Muri Koo Fai (Lake of Young Men and Maidens) and Tiwu Ata Polo (Bewitched Lake). The two lakes are highly acidic due to underwater fumarole activity and are turqoise in colour.

1387-1250 - December 3, 2012 - Colourful crater lakes of Kelimutu volcano, Flores Island, Indonesia. Tiwu Nua Muri Koo Fai (Lake of Young Men and Maidens) and Tiwu Ata Polo (Bewitched Lake). The two lakes are highly acidic due to underwater fumarole activity and are turqoise in colour.

1387-1231 - September 12, 2009 - Plume Geyser eruption, Upper Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.

1387-1230 - September 12, 2009 - Castle Geyser eruption with rainbow, Upper Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.

1387-1229 - September 12, 2009 - Castle Geyser eruption with rainbow, Upper Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.

1387-1228 - September 12, 2009 - Sawmill Geyser, Upper Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.

1387-1225 - September 12, 2009 - Morning Glory Pool Hot Spring, Upper Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.

1387-1224 - September 12, 2009 - Morning Glory Pool Hot Spring, Upper Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.

1387-1223 - September 12, 2009 - Chromatic Pool Hot Spring, Upper Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.

1387-1222 - September 12, 2009 - Steam rising over Midway Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.

1387-1221 - September 12, 2009 - Grand Prismatic Spring, Midway Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.

1387-1220 - September 11, 2009 - White Dome Geyser erupting, Lower Geyser Basin geothermal area, Yellowstone Caldera, Yellowstone National Park, Wyoming.

1387-1215 - November 2007 - Champagne Pool hot spring, Wai-O-Tapu Geothermal area, Taupo Volcanic Zone, New Zealand.

1387-1212 - November 2007 - Champagne Pool and Artist's Palette, Wai-O-Tapu Geothermal area, Taupo Volcanic Zone, New Zealand.

1387-1211 - November 2007 - Aerial view of crater lake in Tongariro volcanic complex, New Zealand.

1387-1210 - November 2007 - Snow-covered Ngauruhoe cone, Mount Tongariro volcano, New Zealand.

1387-1209 - November 2007 - Aerial view of 1886 basaltic plinian eruption fissure in rhyolite dome complex, Mount Tarawera volcano, New Zealand.

1387-1208 - November 2007 - Aerial view of 1886 basaltic plinian eruption fissure in rhyolite dome complex, Mount Tarawera volcano, New Zealand.

1387-1108 - Iceberg swimming pool, Antarctica.

1387-1077 - Two scuba divers in the Garden of Eden cavern part of the cenote system on the Yucatan Peninsula of Mexico.

1387-1064 - Scuba diver in the Garden of Eden cavern part of the cenote system on the Yucatan Peninsula of Mexico.

1387-1060 - Aurora Borealis, Kathleen Lake, Yukon, Canada.

1387-1059 - Aurora Borealis, Kathleen Lake, Yukon, Canada.

1387-1056 - Aurora Borealis, Fish Lake, Whitehorse, Yukon, Canada.

1387-1054 - Aurora borealis over Bove Island, Windy Arm, Carcross, Yukon, Canada.

1387-1053 - Aurora borealis over Bove Island, Windy Arm, Carcross, Yukon, Canada.

1387-1047 - Aurora borealis over the Yukon River, Whitehorse, Yukon, Canada.

1387-1044 - Aurora borealis with moonlight at Fish Lake, Whitehorse, Yukon, Canada.

1387-1043 - Aurora borealis with moonlight at Fish Lake, Whitehorse, Yukon, Canada.

1387-1031 - Licancabur stratovolcano reflected in Laguna Tebinquinche, Chile.

1387-1030 - Panoramic view of the Chiliques stratovolcano in Chile.

1387-1029 - The Mont Blanc mountain as seen from the Torino refuge.

1387-1028 - Panoramic view of the Lascar volcano complex in Chile.