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Shiveluch Volcano, Russia’s Far East
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Published September 3, 2007
Shiveluch is one of the biggest and most active of a line of volcanoes that follow the spine of the Kamchatka Peninsula in easternmost Russia. The volcanoes and peninsula are part of the tectonically active “Ring of Fire,” a zone of active volcanoes and frequent earthquakes that nearly surrounds the Pacific Ocean.
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Ceuta, Northern Africa
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Published August 27, 2007
he southern tip of Spain and the northern tip of Africa come close to touching at the Strait of Gibraltar. The small Spanish enclave Ceuta occupies a narrow isthmus of land on the African side of the Strait of Gibraltar; the rest of the surrounding territory is Morocco.
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Smoke Plumes over Idaho and Montana
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Published August 20, 2007
On August 13, 2007, while docked to the International Space Station (ISS), the crew members of Shuttle Mission STS-118 and ISS Expedition 15 reported seeing the smoke plumes from wide-spread fires across Idaho and Montana. The crew photographed and downlinked images of isolated plumes and regional views of the smoke from different perspectives.
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Bechar Basin, Algeria
Published August 6, 2007
The Béchar Basin of northwest Algeria formed as layers of sedimentary rocks from the Paleozoic Era (250-540 million years ago) folded and cracked during collisions of Africa and Europe during the Tertiary Period (2-65 million years ago). In this photograph of part of the basin captured by astronauts, dark brown to tan folded ridges of these Paleozoic sedimentary layers extend across the image from top to bottom.
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Brooklyn, New York Waterfront
Published July 30, 2007
his astronaut photograph captures the dense urban fabric of Brooklyn, New York City’s largest borough (population of 2.6 million), characterized by the regular pattern of highly reflective building rooftops (white). Two main arteries from Manhattan into Brooklyn—the famous Brooklyn Bridge and neighboring Manhattan Bridge—cross the East River along the left (north) side of the image.
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Upheaval Dome, Utah
Published July 23, 2007
Upheaval Dome is a striking geologic structure in the Canyonlands National Park of southern Utah. The alternating rock layers make a nearly circular, 5.5-kilometer- (3.4-mile-) diameter “bull’s-eye.” This photograph of Upheaval Dome was taken by an astronaut onboard the International Space Station. The oblique viewing angle—in other words, not looking straight down—provides a sense of the topography within and around the structure. The dome appears more like an ellipse than a circle due to the oblique viewing perspective.
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Algae in Great Salt Lake
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Published July 16, 2007
The Great Salt Lake of northern Utah is a remnant of glacial Lake Bonneville that extended over much of present-day western Utah and into the neighboring states of Nevada and Idaho approximately 32,000 to 14,000 years ago. The north arm of the lake, displayed in this astronaut photograph from April 30, 2007, typically has twice the salinity of the rest of the lake due to impoundment of water by a railroad causeway that crosses the lake from east to west. The causeway restricts water flow, and the separation has led to a striking division in the types of algae and bacteria found in the north and south arms of the lake.
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Maracaibo City and Oil Slick, Venezuela
Published July 9, 2007
This astronaut photograph depicts the narrow strait between Lake Maracaibo and the Gulf of Venezuela. The brackish lake sits on top of a vast reservoir of buried oil deposits.
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Patuxent River Naval Air Station, Maryland
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Published July 2, 2007
Maryland’s Patuxent River Naval Air Station is located on a small peninsula, bordered by the Patuxent River to the north-northeast and Chesapeake Bay to the east and southeast. International Space Station crews frequently use the Patuxent River Naval Air Station as a geographic reference point and photographic training target. This astronaut photograph illustrates why—the distinctive pattern of the airfield runways and the station’s location in Chesapeake Bay make it easy to spot from orbit.
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Grey Glacier, Chile
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Published June 25, 2007
The Southern Patagonian Icefield of Chile and Argentina hosts several spectacular glaciers—including Grey Glacier located in the Torres del Paine National Park in Chile. This glacier, which in 1996 had a measured total area of 270 square kilometers and a length of 28 kilometers (104 square miles in area, 17 miles long), begins in the Patagonian Andes Mountains to the west and terminates in three distinct lobes into Grey Lake (upper image).
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Iceberg A22A, South Atlantic Ocean
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Published June 18, 2007
The iceberg A22A was photographed when it was about a third of the distance from South America towards Cape Town, South Africa. A22A is one of the largest icebergs to drift as far north as 50 degrees south latitude, bringing it beneath the daylight path of the International Space Station (ISS). A series of parallel lines can be seen in the lower image. These are probably “hummocks,” dunes of snow that have solidified, and they date back to the time when the iceberg was connected to Antarctica. A developing fracture in the ice can be seen in the lower, detailed view.
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