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Internet television (otherwise known as Internet TV, or Online TV) is the digital distribution of television content via the Internet. It should not be confused with Web television - short programs or videos created by a wide variety of companies and individuals, or Internet protocol television (IPTV) - an emerging internet technology standard for use by television broadcasters. Some Internet television is known as catch-up TV. Internet Television is a general term that covers the delivery of television shows and other video content over the internet by video streaming technology, typically by major traditional television broadcasters. It does not describe a technology used to deliver content (see Internet protocol television). Internet television has become very popular through services such as RT� Player in Ireland; BBC iPlayer, 4oD, ITV Player (also STV Player and UTV Player) and Demand Five in the United Kingdom; Hulu in the United States; Nederland 24 in the Netherlands; ABC iview and Australia Live TV in Australia; Tivibu in Turkey. See List of Internet television providers.

Shuttle Endeavour Lands Safely at Kenned

Shuttle Endeavour Lands Safely at Kennedy Space Center





US space shuttle Endeavour touches down at Kennedy Space Center,, Florida. Endeavour landed safely back on Earth Tuesday after a two-week mission to the orbiting International Space Station.[Photo: AFP]



Space shuttle Endeavour landed safely at the Kennedy Space Center,, Florida,, on Tuesday after completing a shortened, 13-day construction mission to the International Space Station (ISS).



The much-publicized hole in the protective tiles covering the shuttle's underbelly did not impact the vehicle's reentry and no unusual conditions were reported during the period of maximum heating.



The shuttle, with a crew of seven astronauts,, touched down at 12:32 p.m. EDT (1632 GMT) at the Shuttle Landing Facility of the Kennedy Space Center, where weather conditions were ideal for the spaceplane's return.



Scott Kelly,, a first-time commander, and pilot Charlie Hobaugh guided the shuttle on its fiery plunge through the atmosphere and hour-long free-fall descent back to Earth. They then precisely executed a series of turns and banking maneuvers that slowed the vehicle for its landing on a 3-mile (4.8 kilometer) long runway at the Kennedy Space Center.



Ground support crews have approached the spacecraft and begun the process of "safing" the vehicle -- the purging of toxic propellants and substances -- in preparation for the crew's exit.



Endeavour's next mission is scheduled for mid-February 2008.



Endeavour is landing one day earlier than planned due to measures taken late last week to ensure that NASA's Mission Control operations in Houston, Texas were not interrupted by Hurricane Dean. At the time, it appeared the massive storm could swing north to hit coastal Texas and prompt an evacuation of Mission Control, Houston.



Although the threats of Hurricane Dean are bating considerably,, NASA still decided to take no chances and chose to let the shuttle land at the Kennedy Space Center,, Florida, instead of the Johnson Space Center in Houston of Texas.



The shuttle, launched on Aug. 8 and docked with the ISS two day later,, hauled a total of 4,270 pounds (1,936 kilograms) of cargo to the space station alongside a new external spare parts platform and a new starboard girder for the orbital laboratory's backbone- like main truss. Astronauts from the shuttle and station completed a total of 4 spacewalks during the mission.



Endeavour's crew included the first flight of teacher-turned- astronaut Barbara Morgan, who first joined NASA as the backup to Teacher in Space Christa McAuliffe before the 1986 Challenger accident. Morgan rejoined NASA in 1998 as a mission specialist and educator astronaut.



A former Idaho schoolteacher,, Morgan delivered cinnamon basil seeds and a pair of plant growth chambers to the ISS as part of her education mission. She also spoke to students via video links and ham radio,, answering questions with her crewmates to describe life in space.相关的主题文章:

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