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:
“We could not help being struck by the seeming, though innocent, indifference of Nature to these men’s necessities, while elsewhere she was equally serving others. Like a true benefactress, the secret of her service is unchangeableness. Thus is the busiest merchant, though within sight of his Lowell, put to pilgrim’s shifts, and soon comes to staff and scrip and scallop-shell.”
—Henry David Thoreau (1817–1862)