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Harmony (ISS module)
''Harmony'', also known as ''Node 2'', is the "utility hub" of the International Space Station. The hub contains four racks that provide electrical power, plus electronic data, and act as a central connecting point for several other components via its six Common Berthing Mechanisms (CBMs). ''Harmony'' added to the station's living volume, an increase of almost 20 percent, from to The successful installation of ''Harmony'' meant that from NASA's perspective, the station was "U.S. Core Complete". ''Harmony'' was successfully launched into space aboard Space Shuttle flight STS-120 on October 23, 2007. After temporarily being attached to the port side of the Unity node,〔 it was moved to its permanent location on the forward end of the ''Destiny'' laboratory on November 14, 2007.
==Origin of name==
The unit formerly known as ''Node 2'' was renamed ''Harmony'' in March 2007. The name was chosen from a competition involving more than 2,200 kindergarten through high school students from 32 states. The ''Node 2 Challenge'' required students to learn about the space station, build a scale model, and write an essay explaining their proposed name for the module, which will serve as a central hub for science labs.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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