Spacelab

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This article is about the space shuttle laboratory. For the space station of the 1970s, see Skylab. For the commercial company, see SPACEHAB.
Spacelab in payload bay during STS-90
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Spacelab in payload bay during STS-90

Spacelab is a microgravity laboratory flown into space on the Space Shuttle. The Spacelab Module consists of a large cylindrical main laboratory that is flown in the rear of the Space Shuttle cargo bay, connected to the crew compartment by a long tube. The laboratory had an outer diameter of 4.06 m, and each segment a length of 2.7 m. Most of the time two segments were used, thus it had a total length of 5.4 m.

In April 1973 NASA and the ESA (then known as the ESRO) agreed to build a modular science package. Construction of Spacelab started in 1974 by the ERNO (represented by VFW-Fokker GmbH, later bought by MBB, and since 2003 part of EADS SPACE Transportation). The first lab module, LM1, was given to NASA free of charge in exchange for flight opportunities for European astronauts. A second module, LM2, was bought by NASA for its own needs. The system also included a system of external pallets for experiments in vacuum, built by British Aerospace (BAe).

Spacelab Module was used in 25 shuttle flights, but was decommissioned in 1998 - science work was supposed to be moved to the International Space Station and Spacehab module, a pressurized carrier similar to the Spacelab Module. The Spacelab Pallet was recommissioned in 2002 for flight on STS-99, and future use is likely.

The LM1 is now on display in the Bremenhalle exhibition in the Bremen Airport of Bremen, Germany.

[edit] Spacelab missions