Pictures from space

雪儿 · 发表于: 2011-5-16 21:17:56

Image Science & Analysis Laboratory, NASA Johnson Space Center

Playing in the sand

Among the best applications of ISS Earth Observation, according to Evans, is the perspective it offers on human development. For example, this Jan. 13, 2010, image of Dubai in the United Arab Emirates shows several of the city's features built with an aerial perspective in mind.

On the left is Palm Jumeira, a palm tree – shaped island made with more than 1.7 billion cubic feet of dredged sand. On the right are the World Islands, which were completed in 2008 with 11.3 billion cubic feet of sand. The Burj Khalifa, the world's tallest skyscraper at 2,217 feet that opened on Jan. 4, can be picked out in the lower right of the image

雪儿 · 发表于: 2011-5-16 21:18:14

ss-100204-ISSphoto-03.ss_full.jpg 保存到相册

Image Science & Analysis Laboratory, NASA Johnson Space Center

Volcanic eruption caught in the act

On June 12, 2009, the space station made a fortunate pass over Sarychev Volcano in the Kuril Islands northeast of Japan during the early stage of an eruption. How the clouds on top of and around the ash plume formed are a source of keen scientific interest, noted Evans. "It was one of a kind from the scientific value of understanding how an eruption starts," Evans said.

雪儿 · 发表于: 2011-5-16 21:18:31

ss-100204-ISSphoto-01.ss_full.jpg 保存到相册

NASA

Angling for a good shot

Astronauts aboard the International Space Station have used hand-held cameras to take more than 450,000 photographs of Earth as seen from their orbiting outpost about 220 miles up in the skies since November 2000.

The flexibility to look off to the side, change lenses and choose interesting features to photograph are some of the advantages over stationary Earth-observing cameras on satellites, noted Cindy Evans at the NASA Johnson Space Center in Houston where the database of images is maintained.

Here, astronaut Donald Pettit photographs the Earth from the Destiny Laboratory on the International Space Station.

雪儿 · 发表于: 2011-5-16 21:18:47

ss-100204-ISSphoto-04.ss_full.jpg 保存到相册

Image Science & Analysis Laboratory, NASA Johnson Space Center

Forest clearing in Bolivia

Astronauts have used hand-held cameras to photograph the Earth for more than 45 years, providing an archive to draw from to show land use changes through time, according to Evans. The images show progressive clearing of the tropical rainforest in eastern Bolivia to make room for agricultural fields.

The image on the left was taken from the space shuttle in November 1995. The image on the right is a slightly closer view of the same region made from the space station on November 2008.

雪儿 · 发表于: 2011-5-16 21:19:04

ss-100204-ISSphoto-05.ss_full.jpg 保存到相册

Image Science & Analysis Laboratory, NASA Johnson Space Center

'Little jewels of the ocean'

As astronauts orbit over the western Pacific Ocean, they don't see land for long stretches of time. Then coral reefs and atolls appear and the astronauts tend to reach for the camera, noted Evans. "They see these little jewels in the ocean and they can capture them in great detail," she said.

Nukuoro Atoll in the Caroline Islands northeast of Papua New Guinea was photographed on May 31, 2006. The 42 patches of vegetation on the island face the dominant easterly winds. About 900 people live in the settlements on the inland side of the forest patches. Space station images of coral reefs, Evans noted, are used by conservationists to monitor the health of these habitats.

雪儿 · 发表于: 2011-5-16 21:19:24

ss-100204-ISSphoto-06.ss_full.jpg 保存到相册

Image Science & Analysis Laboratory, NASA Johnson Space Center

A total solar eclipse from space

Solar eclipse enthusiasts will travel to the ends of the Earth to watch the moon momentarily blot the sun from the sky. Astronauts aboard the International Space Station caught this view of the moon's shadow sweeping across Turkey, northern Cyprus, and the Mediterranean Sea during the total solar eclipse of March 29, 2006.

雪儿 · 发表于: 2011-5-16 21:19:39

Editor's Note:

This image contains graphic content that some viewers may find disturbing.

Click to view the image,

or use the buttons above to navigate away.

ss-100204-ISSphoto-07.ss_full.jpg 保存到相册

雪儿 · 发表于: 2011-5-16 21:20:02

ss-100204-ISSphoto-08.ss_full.jpg 保存到相册

Image Science & Analysis Laboratory, NASA Johnson Space Center

London all lit up

Cities are among the most popular astronaut images downloaded from NASA, Evans said. "People are fascinated that not just a satellite looks down at them, but that people orbiting the Earth are looking down at these urban regions," she said.

This Feb. 4, 2003, photograph of London gives a clear view of the city's urban density. The downtown core is the brightest and the density steady drops off until it reaches an encircling roadway called the Orbital. The fuzzy patches are thought to be clouds or areas of fog.

雪儿 · 发表于: 2011-5-16 21:20:29

ss-100204-ISSphoto-09.ss_full.jpg 保存到相册

Image Science & Analysis Laboratory, NASA Johnson Space Center

Going green

Some crew members, according to Evans, are fascinated by aurora – the nighttime lights in the skies that occur when oxygen and nitrogen atoms are bombarded by charged solar particles. They "and spend a good deal of time learning how to take photographs of the aurora that are meaningful." Expedition Six crew member Donald Petit took several pictures of aurora in January and February of 2003, including this one of a green aurora over the night side of Earth just after sunset.

雪儿 · 发表于: 2011-5-16 21:20:44

ss-100204-ISSphoto-10.ss_full.jpg 保存到相册

Image Science & Analysis Laboratory, NASA Johnson Space Center

A fiery landscape

As fire licked across the Simpson Desert in Australia, it left behind tell-tale scars of its passing. The orange streaks in this Nov. 23, 2002, image, NASA explains, were created as fire burned the desert scrub, exposing the underlying dune sand.

The pattern suggests the fire moved into the view from the lower left and followed the rippled ribbon of the dunes in the direction of the prevailing winds. Then, the wind shifted direction about 90 degrees and blew the flames across the dunes in tendril-like streaks. As the vegetation grows back, the scars will disappear.

帐号		自动登录	找回密码
密码			免费注册

[2011年] Pictures from space

相关帖子 » 标签