On July 20, the U.S. Coast Guard Cutter Healy steamed south in the Arctic Ocean toward the edge of the sea ice. Original from… Free Image from public domain license 
The U.S. Coast Guard Cutter Healy encountered only small patches of sea ice in the Chukchi Sea during the final days… Free Image from public domain license 
View of the Arctic waters and the far northern lands surrounding it. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Dartmouth College's Chris Polashenski cuts a block of ice from below a melt pond on sea ice in the Chukchi Sea on July 9… Free Image from public domain license 
A NASA scientific balloon awaits launch in McMurdo, Antarctica. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Benny Hopson from the Barrow Arctic Science Consortium in Alaska drills a core sample from sea ice in the Chukchi Sea on July… Free Image from public domain license 
An iceberg trapped in sea ice in the Amundsen Sea. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
ICESCAPE scientists watched from the deck of the Healy as it cut a path through thick multiyear ice on July 6, 2011. Original… Free Image from public domain license 
Early Melt on the Greenland Ice Sheet . Original from NASA . Digitally enhanced by rawpixel. Free Image from public domain license 
Saunders Island and Wolstenholme Fjord with Kap Atholl in the background. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Ice on the Ellsworth Range in Antarctica as seen from the IceBridge DC-8 on Oct. 22, 2012. Original from NASA. Digitally… Free Image from public domain license 
An iceberg embedded in sea ice as seen from the IceBridge DC-8 over the Bellingshausen Sea on Oct. 19, 2012. Original from… Free Image from public domain license 
Eruption of Cleveland Volcano, Aleutian Islands, Alaska. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
View of the northern Antarctic Peninsula from high altitude during IceBridge's flight back from the Foundation Ice Stream, on… Free Image from public domain license 
Rare clear view of Alaska. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Edge of an ice shelf in Adelaide Island, off the Antarctic Peninsula. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
New NASA laser technology reveals how ice measures up. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Warming Seas and Melting Ice Sheets. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Greens and blues of the ocean color from NASA satellite data. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Earth observation by the crew of the International Space Station. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Skiing Sochi. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Every southern spring and summer, after the Sun has risen into its 24-hour circuit around the skies of Antarctica, the Ross… Free Image from public domain license 
Redwood National Park. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
The Arctic Circle cuts through the western coast of Norway and the Saltfjellet-Svartisen National Park. Original from NASA.… Free Image from public domain license 
Longyearbyen, the largest island of the Svalbard archipelago, part of the Kingdom of Norway. Original from NASA. Digitally… Free Image from public domain license 
The Matusevich Glacier flows toward the coast of East Antarctica, pushing through a channel between the Lazarev Mountains and… Free Image from public domain license 
NASA image acquired August 17, 2010, the Northwest Passage almost free of ice. Original from NASA. Digitally enhanced by… Free Image from public domain license 
Skylab 3 Earth view of the Nile Delta, Egypt and Suez Canal. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Clark University student Christie Wood lowers a water sampler into a borehole on July 4, 2010. Original from NASA. Digitally… Free Image from public domain license 
Rostov-on-Don, a Russian City on the Don River, 32 kilometers from the Sea of Azov. Original from NASA. Digitally enhanced by… Free Image from public domain license 
Dendi Caldera, Ethiopia is featured in this image photographed by an Expedition 16 crew member on the International Space… Free Image from public domain license 
Northern half of Mauritania's Atlantic Coast from Skylab. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Attu, the westernmost Aleutian island, is nearly 1760 km from the Alaskan mainland. Original from NASA. Digitally enhanced by… Free Image from public domain license 
Arrival of the RRS Ernest Shackleton near Halley Research Station in Antarctica, January, 2013. Original from NASA. Digitally… Free Image from public domain license 
The Larsen Ice Shelf in Antarctica viewed from NASA's DC-8 aircraft during the AirSAR 2004 campaign . Original from NASA.… Free Image from public domain license 
These rocks are famous because they move, leaving tell-tale trails in the clay, like this one. Original from NASA. Digitally… Free Image from public domain license 
Mountain ridges showing the distinctive geology of the Geikie Plateau region in eastern Greenland. Original from NASA.… Free Image from public domain license 
In this mostly cloud-free true-color scene, much of Scandinavia can be seen to be still covered by snow. Original from NASA.… Free Image from public domain license 
The U.S. Coast Guard Cutter Healy in the Beaufort Sea, northeast of Barrow, Alaska. Original from NASA . Digitally enhanced… Free Image from public domain license 
Mountain Peaks. Original from NASA. Digitally enhanced by rawpixel Free Image from public domain license 
Iran, Trucial Coast, Oman, Zagros Mountains, and Qishm Island (large island at lower left), as seen from the Gemini-12… Free Image from public domain license 
Cosiguina Volcano, Nicaragua. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
NASA's Wallops Flight Facility is located on Wallops Island. Satellite imagery from NOAA's GOES-East satellite shows that… Free Image from public domain license 
This image from NASA's Terra spacecraft shows the Kuk Early Agricultural Site in the western highlands of New Guinea.… Free Image from public domain license 
Arabian Peninsula and northeast Africa as seen from the orbiting Gemini-11. Original from NASA. Digitally enhanced by… Free Image from public domain license 
View of the Salt Lake City, Utah area. Original from NASA. Digitally enhanced by rawpixel. 
Apollo 9 Mission image - S0-65 Multispectral Photography - New Mexico. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
This image of the Galapagos Islands captures two large shield volcanoes on Isla Isabella. Original from NASA. Digitally… Free Image from public domain license 
This image from NASA's EarthKAM captures almost all of Quinghai, the largest lake in China. Original from NASA. Digitally… Free Image from public domain license 
View of the heart of Shenandoah National Park on October 10, 2010, at the height of the fall “leaf-peeping”… Free Image from public domain license 
The Isthmus of Corinth has played a very important role in the history of Greece. Original from NASA. Digitally enhanced by… Free Image from public domain license 
The Kondyor Massif is located in Eastern Siberia, Russia, north of the city of Khabarovsk. Original from NASA. Digitally… Free Image from public domain license 
Nearly cloud-free view of Great Britain and Ireland was acquired by the Moderate Resolution Imaging Spectroradiometer aboard… Free Image from public domain license 
NASA’s Operation IceBridge Completes Twin Polar Campaigns. Heimdal Glacier in southern Greenland. Original from NASA.… Free Image from public domain license 
Lake Ilopango, a crater lake which fills a volcanic caldera in central El Salvador. Original from NASA. Digitally enhanced by… Free Image from public domain license 
Sheveluch Volcano in Kamchatka, Siberia. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Phytoplankton bloom in the Bay of Biscay. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
The ICESCAPE mission, or "Impacts of Climate on Ecosystems and Chemistry of the Arctic Pacific Environment," near Alaska.… Free Image from public domain license 
Calcite Quarry, Michigan. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
View of the southeastern tip of the Arabian Peninsula with the Gulf of Oman at upper right. Original from NASA . Digitally… Free Image from public domain license 
The U.S. Coast Guard Cutter Healy parked in an ice floe for the 2011 ICESCAPE mission's third ice station in the Chukchi Sea.… Free Image from public domain license 
Snow covered Alps of France, Italy, and Switzerland. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Nadir view of the southern Cape District of South Africa. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
NASA Satellite Captures Super Bowl Cities - Santa Clara, CA .Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
This image from NASA's EarthKAM shows Lisbon, the capital of Portugal. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Snow, which tends to be generally less bright that clouds, covers the Alps in the north of Italy. Original from NASA.… Free Image from public domain license 
NASA satellite tracks underwater volcanic eruption in Canary Islands. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Beautiful new mosaic of Chesapeake Bay. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Lake Naivasha, 90km north-west of Nairobi. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Images of the Earth's land surface and surrounding coastal regions. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Baja California, Colorado river and Sonora Desert. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Lying in the eastern Mediterranean Sea, the entire Island of Crete (35.0N, 25.0E) can be seen in great detail in this cloud… 
Missionary Plains in Australia’s Northern Territory, a crater 24 kilometers in diameter and 5 kilometers deep. Original… Free Image from public domain license 
A plume at Shiveluch Volcano, Kamchatka Peninsula, Russia. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Central area of Ethiopia, south of Addis Ababa, showing Lakes Zwai, Langana, and Shala. Original from NASA. Digitally… Free Image from public domain license 
Sediment Spews from Connecticut River. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Thurston Island Calving. Original from NASA. Digitally enhanced by rawpixel Free Image from public domain license 
View of the USSR, Siberia area from Skylab 4. Other areas seen are Ozero, Kanka, Ussiriysk, the Sea of Japan and Kavalerovo.… 
Earth observations taken from Space Shuttle Columbia during STS-93 mission. Original from NASA. Digitally enhanced by… Free Image from public domain license 
San Francisco and Bay Area, CA, USA. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
This rare cloud-free view of southern Italy shows almost all of the famous `boot' configuration of the peninsula up to just… 
NASA Launches Eighth Year of Antarctic Ice Change Airborne Survey. Original from NASA . Digitally enhanced by rawpixel. Free Image from public domain license 
Ellesmere Island, which is part of the Qikiqtaaluk Region of the Canadian territory of Nunavut. Original from NASA. Digitally… Free Image from public domain license 
The ice of a piedmont glacier spills from a steep valley onto a relatively flat plain. Malaspina Glacier, Alaska. Original… Free Image from public domain license 
View of Minneapolis-St.Paul, Minnesota area. Original from NASA. Digitally enhanced by rawpixel. 
View of Melbourne, Australia as seen from the Skylab space station. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
NASA scientists are flying over Alaska and Canada, measuring the elevation of rivers and lakes. Original from NASA. Digitally… Free Image from public domain license 
View of portion of Queensland, Australia from Skylab space station. Original from NASA. Digitally enhanced by rawpixel 
Glacier Grey in front of The Cuernos del Paine mountains in Chile. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Phytoplankton bloom off Newfoundland. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
The Zambezi, the fourth largest river in Africa, and the largest east-flowing waterway. Original from NASA. Digitally… Free Image from public domain license 
The Mackenzie River in the Northwest Territories, Canada. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Remote sensing of ocean color in the Yellow Sea. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
New image of the Earth at night is a composite assembled from data acquired by the Suomi National Polar-orbiting Partnership… Free Image from public domain license 
A colony of Magellanic penguins near Punta Arenas, Chile. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Grand Turk Island is an island in the Turks and Caicos Islands in the Caribbean, and contains the territory's capital… Free Image from public domain license 
Earth observations taken during STS-77 mission. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
Fog blankets the woods near a road in the Merritt Island National Wildlife Refuge at NASA's Kennedy Space Center in Florida.… Free Image from public domain license 
Teshekpuk Lake on Alaska's North Slope, within the National Petroleum Reserve. Original from NASA. Digitally enhanced by… Free Image from public domain license 
The Olympic National Park has to be one of America’s most diverse national park landscapes. Original from NASA.… Free Image from public domain license