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Spacelab
Spacelab was a reusable laboratory used on certain spaceflights flown by the Space Shuttle. The laboratory comprised multiple components, including a pressurized module, an unpressurized carrier and other related hardware housed in the Shuttle's cargo bay. The components were arranged in various configurations to meet the needs of each spaceflight.
Spacelab components flew on 22 Shuttle missions between November 1983 and April 1998. Spacelab allowed scientists to perform experiments in microgravity in earth orbit.
== Background ==
In August 1973, NASA and ESRO (now European Space Agency or ESA) signed a Memorandum of Understanding to build a science laboratory for use on Space Shuttle flights.〔Lord 1987, pp. 24-28.〕 Construction of Spacelab was started in 1974 by the ERNO (daughter of VFW-Fokker GmbH, after merger with MBB named MBB/ERNO, and since 2003 part of EADS SPACE Transportation). The first components produced, including lab module, ''LM1'', were given to NASA free of charge by ESA in exchange for flight opportunities for European astronauts. A second module, ''LM2'', was bought by NASA for its own use from ERNO.
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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