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Ash Plume Streams from Mt. Etna, Sicily
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Published August 4, 2001
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The record of historical volcanism of Mt. Etna is one of the longest in the world, dating back to 1500 BC.
Greenwich, Where East Meets West
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Published July 29, 2001
Greenwich is situated on the south shore of a sharp bend in the River Thames, just southeast of the City of London and is part of Greater London. Here is located the world famous Royal Observatory where the Prime Meridian, dividing East and West Longitude, was defined by international agreement in 1884.
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Baku, Azerbaijan
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Published July 22, 2001
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Baku is Azerbaijan’s major city, and the oil capital of the Caspian region. This detailed view taken by the Expedition 2 crew on the International Space Station shows details of the city, including the extensive port facilities, and part of the large web of offshore oil platforms in the Caspian Sea.
Watery Gem of Northern Italy, the City of Venice
Published July 8, 2001
The compact Italian city of Venice with its renowned canals is situated on a small, fish-shaped island in the Laguna Veneta at the northwest corner of the Adriatic Sea. In this photo taken from the International Space Station by the Expedition 1 Crew on February 21, 2001, one can see part of the causeway connecting the city to the mainland. The sinuous Canal Grande bisecting the city is easily visible in this scene as is the larger Canal Giudecca to the west, which leads to the port facilities on the northwestern end of the island. For centuries, the low-lying city has successfully coped with the three-foot tidal range experienced at this end of the Adriatic Sea, and the series of barrier islands has offered some protection from storm waves. However, a combination of both regional land subsidence and recent slight rises in sea level pose a significant threat this historic city and its priceless art treasures.
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Atolls in the Tuamotu Archipelago, French Polynesia
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Published July 1, 2001
These two images of the Tuamotu Archipelago, French Polynesia, illustrate diversity in the morphology of atolls, one of the major types of coral reef formations. A typical atoll structure is a lagoon surrounded by a closed rim of cays and shallow spillways that control the exchange of water between the ocean and the lagoon. However, like human beings, this general scheme may vary according to the history of each individual atoll, resulting in a high diversity of morphology, especially for small atolls. The two neighboring atolls shown here have some unique features. What was a lagoon on Nukutavake (19°17′ S 138°48′ W, 6.2 km²) is now dry and completely covered by vegetation. Pinaki (3.54 km²) has a drying shallow lagoon still connected to the ocean via a single narrow spillway. The variation of morphology implies that each atoll may have a different equilibrium between ocean, lagoon, and land ecosystems.
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Downtown Houston from Space Station Alpha
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Published June 3, 2001
A series of digital photographs of Houston illustrates the new detail being obtained for cities around the world by crewmembers on the International Space Station. This image, captured on 17 December 2000 centers on the downtown region and shows extensive detail of streets, parks and major buildings.
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Tierras Bajas Deforestation, Bolivia
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Published May 27, 2001
The area east of Santa Cruz was originally dry tropical forest.
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