What is The International Space Station?

 

ISS SPACE STATION

The International Space Station is a large spacecraft. It orbits around Earth. It is a home where astronauts live.
The space station is also a science lab. Many countries worked together to build it. They also work together to use it.
The space station is made of many pieces. The pieces were put together in space by astronauts. 
The ISS consists of pressurized modules, external trusses, solar arrays and other components. ISS components have been launched by Russian Proton and Soyuzrockets as well as American Space Shuttles.
The space station's orbit is about 220 miles above Earth. NASA and other space agencies uses the station to learn about living and working in space.
The first piece of the International Space Station was launched in 1998. A Russian rocket launched that piece. After that, more pieces were added. Two years later, the station was ready for people. The first crew arrived in October 2000. People have lived on the space station ever since. Over time more pieces have been added. NASA and its partners around the world finished the space station in 2011.
The purpose of the International Space Station is to provide an international laboratory to perform experiments within the space environment. For many of those experiments, the key parameter is prolonged weightlessness. 
ISS is the ninth space station to be inhabited by crews, following the Soviet and later Russian Salyut, Almaz, and Mir stations as well as Skylab from the US. The station has been continuously occupied for 15 years and 32 days since the arrival of Expedition-1 on 2 November 2000. This is the longest continuous human presence in space, having surpassed the previous record of 9 years and 357 days held by Mir. The station is serviced by a variety of visiting spacecraft: Soyuz, Progress, the Automated Transfer Vehicle, the H-II Transfer Vehicle, Dragon, and Cygnus. It has been visited by astronauts, cosmonauts and space tourists from 20 different nations.

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