Start Date: End Date: Published Date Data Date
Baitoushan Volcano, China and North Korea
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Published May 16, 2005
One of the largest known eruptions of the modern geologic period (the Holocene) occurred at Baitoushan Volcano about 1000 A.D. The eruption created the 4.5-kilometer diameter, 850-meter deep summit caldera of the volcano, which is now filled with the waters of Lake Tianchi.
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London, United Kingdom
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Published May 9, 2005
Numerous well-known landmarks appear in this detailed view of London taken from the International Space Station.
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Jericho, West Bank
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Published May 2, 2005
Commonly known as “the oldest city in the world,” Jericho is an important historical, cultural, and political center located northwest of the Dead Sea. This astronaut photograph illustrates the city center, and the original settlement mound of Tell es-Sultan. Total distance across the image is approximately 8 kilometers (5 miles). Two large refugee camps are located to the northwest and south of the city center. The high building density of the refugee camps contrasts sharply with the more open city center and irrigated fields (green polygonal patches) of Jericho, and illustrates one of the physical consequences of the ongoing Israeli-Palestinian conflict in the region.
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Spring Thaw, Straits of Mackinac
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Published April 25, 2005
he Mackinac Bridge spans a stretch of water five miles wide between Michigan’s lower and upper peninsulas. The strait connects Lakes Michigan (left) and Huron (right). The bridge is a combination of pier-supported spans with a high, central suspension sector that allows passage of lake steamers.
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Lima Metropolitan Area, Peru
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Published April 18, 2005
Located on the broad alluvial fan of the Rimac River, Lima is the capital of Peru and the only megacity (7.7 million inhabitants in 2002) located on the western coastline of South America.
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Rollout of Shuttle Discovery, Kennedy Space Center
Published April 11, 2005
International Space Station Astronaut Leroy Chiao, like the rest of NASA, tracks key milestones for the Space Shuttle Return-to-Flight operations. A lucky overpass of the Space Station over Florida on April 6, 2005, allowed Leroy and his crew mate Salizhan Sharipov a unique view of the rollout of the Space Shuttle Discovery. At the time of his observations, Discovery was approximately midway between the Vehicle Assembly Building (VAB) and launch pad 39-B at Kennedy Space Center in Florida.
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Mount Olympus, Greece
Published April 4, 2005
Mount Olympus is the highest peak in Greece. The 2,917-meter (9,570-foot) summit is the tallest in a mountain chain that runs north into Bulgaria and south into Turkey, via the Cyclades Islands. In this winter view, Olympus is the only peak with a dusting of snow—perhaps the reason its name in classical Greek means “the luminous one.” In Greek mythology, the peak was inhabited by the Twelve Olympians, the most famous gods of the ancient Greeks. North of Mount Olympus lies Macedonia, the homeland of Alexander the Great. Climbing the famous mountain is a favorite tourist activity today.
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Popocatepetl and Iztaccíhuatl Volcanoes, Mexico
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Published March 28, 2005
As part of the circum-Pacific “Ring of Fire,” Mexico hosts several of the world’s most continually active volcanoes, including the massive Popocatepetl (Aztec for “smoking mountain.”) This detailed, oblique astronaut photograph also depicts a neighboring volcano, Iztaccíhuatl (the “Woman in White.”)
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Arid Coast of Peru
Published March 21, 2005
Following the last major upheaval of the Andes Mountains, rivers flowing down into the Pacific Ocean have carved dramatic canyons along Peru’s southern coast. In geologic terms, the canyons are relatively young—carved over the past 8 million years. This oblique (off-vertical) image from March 14, 2003, provides a southward look down Peru’s rugged, arid coastline between 15.5 and 17 degrees South latitude. The canyons run from left to right and appear grayer than the surrounding reddish-brown terrain.
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Fringing Coral Reef, Red Sea
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Published March 14, 2005
The Sudanese coast of the Red Sea is a well-known destination for diving due to clear water and abundance of coral reefs (or shia’ab in Arabic). Reefs are formed primarily from precipitation of calcium carbonate by corals. (In addition to its commonly used meaning, precipitation can also describe how something dissolved in a solution becomes “undissolved” through chemical or biological processes.) Massive reef structures are built over thousands of years of succeeding generations of coral. In the Red Sea, fringing reefs form on shallow shelves of less than 50 meters depth along the coastline. This astronaut photograph illustrates the intricate morphology of the reef system located along the coast between Port Sudan to the northwest and the Tokar River delta to the southeast.
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Coastal Change, Amazon River Mouth
Published March 7, 2005
Over a period of approximately four years a major island near the mouth of the Amazon River has been dramatically modified as the arms of the river have shifted. Between 2000 and 2005 the channel on the west side of the island has shifted to the northwest by eroding ~200 meters of the mainland shoreline and accreting (sediment on the west side of the island.
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