A service module (or equipment module) is a spacecraft compartment containing a variety of support systems used for spacecraft operations. Usually located in the uninhabited area of the spacecraft, the service module is jettisoned upon the completion of the mission, and usually burns up during atmospheric reentry. The service module is the equivalent to the spacecraft bus assembly on unmanned spacecraft.
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Famous quotes containing the word service:
“Old books that have ceased to be of service should no more be abandoned than should old friends who have ceased to give pleasure.”
—Peregrine, Sir Worsthorne (b. 1923)