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Den Helder, Netherlands
Published June 4, 2007
The city and harbor of Den Helder in the northern Netherlands has been the home port of the Dutch Royal Navy for over 175 years. The location provides access to the North Sea, which has made it an important commercial and strategic port. Bright red agricultural fields to the south of Den Helder indicate another noteworthy aspect of the region—commercial farming of tulips and hyacinth.
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Concepcion Volcano, Nicaragua
Published May 29, 2007
Concepción Volcano is one of the tallest and most active of Nicaragua’s volcanoes. The 1,610-meter (5,280-foot), cone-shaped volcano is the northern half of dumbbell-shaped Isla de Ometepe. To the northwest of the crater, a very faint plume (probably steam) creeps like fog down the mountain, blurring the sharp gullies that carve the volcano’s flanks.
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Monteregian Hills, Quebec, Canada
Published May 28, 2007
This astronaut photograph of the area to the east of Montreal, Canada, captures two striking patterns. The circular features are the central members of a group of unusual rock formations known as the Monteregian Hills: Mont St. Hilaire, Rougemont, and Mont Yamaska. The rectangular pattern blanketing the landscape in the background reveals the intensive agriculture in the fertile lowlands in southern Quebec.
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Salt Ponds, Botswana
Published May 13, 2007
This detailed astronaut photograph shows the salt ponds of one of Africa’s major producers of soda ash (sodium carbonate) and salt. Soda ash is used for making glass, in metallurgy, in the detergent industry, and in chemical manufacture. The image shows a small part of the great salt flats of central Botswana known as the Makgadikgadi Salt Pans.
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November 2006 Smog Event, U.S. Northeast
Published May 7, 2007
Images of haze over the northeastern United States are shown for November 2006.
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Kwangju, South Korea
Published April 30, 2007
Kwangju (or Gwangju) Metropolitan City is the fifth largest urban area in South Korea. With a population of 1.4 million people, it is a major economic and cultural center for the southern portion of the country. The city is located in a geographic basin with high mountains to the east—the mountain of Mudeungsan has a peak elevation of 1,140 meters (3,740 feet)—and more open plains to the west.
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Venice, Italy
Published April 23, 2007
A space-based perspective of the city of Venice quickly reveals different development and land uses in the region; the major islands in the lagoon surrounding Venice—Laguna Veneta—look different from one another. The island of Venice itself, a dense urban landscape, appears almost uniformly covered with red-tiled roofs. By contrast, port facilities and the train station at the west end of the island appear in shades of gray.
Isles of Scilly, UK
Published April 16, 2007
The Isles of Scilly, an archipelago of approximately 150 islands, are located some 44 kilometers southwest of the westernmost point of England (Land’s End). They have been inhabited for over 4,000 years, and historical and geological evidence on the Isles indicates that many of the islands were larger and/or connected in the recent past.
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Plume at Shiveluch Volcano, Kamchatka Peninsula, Russia
Published April 9, 2007
Shiveluch, one of Kamchatka’s most active volcanoes, began its latest activity with gas and steam emissions in mid- to late March 2007. This image was taken by astronauts aboard the International Space Station (ISS) around mid-morning on or around March 21, 2007. It shows a steam plume, probably containing minor amounts of ash, blowing westward from the summit of the volcano. The astronauts were crossing over the southern tip of Russia’s Kamchatka Peninsula, with a clear view of the volcano about 5 degrees north of the ground track of the ISS. Subsequent eruptions on March 29 and 30 have been recorded by the Kamchatka Volcano Observatory and NASA satellites.
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Plume at Mount Bagana, Bouganville Island
Published April 8, 2007
Bouganville Island is geographically part of the Solomon Islands chain to the east of Papua New Guinea. (Politically, the island is part of Papua New Guinea.) Bouganville is typical of many Pacific Rim islands in that volcanism has played a large part in both its geological and recorded history. The island hosts three large volcanoes along its northwest-southeast trending axis: Mount Balbi, Mount Bagana, and the Mount Takuan volcanic complex. Mount Bagana, located near image center in this astronaut photograph, is the only historically active volcano on the island.
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Montevideo, Uruguay
Published April 2, 2007
Reflective roofing materials and dark asphalt streets outline the urban grid pattern of Uruguay’s capital city, Montevideo, in this astronaut photograph. The city may be viewed as a precursor of a global population shift from dominantly rural to urban environments, a shift the United Nations estimates will occur by 2030. Nearly half of Uruguay’s total population now lives in the Montevideo metropolitan area. Located on the southern coastline of Uruguay along the Rio de la Plata, Montevideo Bay provides an important harbor and port facilities for transport of South American agricultural products.
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Guanaja Island, Honduras
Published March 26, 2007
Guanaja Island is located in the western Caribbean, approximately 60 kilometers (about 37 miles) north of mainland Honduras. The island is near the western edge of the Cayman Ridge, a topographic feature made of rock types that indicate ancient volcanic islands, sedimentary layers, and ocean crust. The ridge resulted from tectonic interactions between the North American, South American, and Caribbean Plates. Guanaja and the nearby islands of Roatan and Utila (not shown) are the only portions of the western Cayman Ridge currently exposed above water.
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