service module
noun
: a space vehicle module that contains oxygen, water, fuel cells, propellant tanks, and the main rocket engine
Examples of service module in a Sentence
Recent Examples on the Web
Progress 91, which launched on Feb. 27, remains at the station, docked to its Zvezda service module.
—
Mike Wall, Space.com, 3 July 2025
Once the deorbit rocket firing is complete, the Starliner's service module, housing the OMACs, 28 RCS jets, the helium tanks and other critical but no-longer-needed systems, will be jettisoned to burn up on the atmosphere.
—William Harwood, CBS News, 6 Sep. 2024
But while SpaceX was prepared to perform a static fire Thursday to check on the booster repairs, NASA announced the visit from Axiom Space was going on hold because of an investigation with Russian space agency Roscosmos into recent repairs made on the Zvezda service module.
—Richard Tribou, The Orlando Sentinel, 12 June 2025
For several years, ground teams have monitored a slow air leak in the aft part of the service module, and NASA officials have identified it as a safety risk.
—ArsTechnica, 13 June 2025
See All Example Sentences for service module
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Mike Wall, Space.com, 3 July 2025
Once the deorbit rocket firing is complete, the Starliner's service module, housing the OMACs, 28 RCS jets, the helium tanks and other critical but no-longer-needed systems, will be jettisoned to burn up on the atmosphere.
—William Harwood, CBS News, 6 Sep. 2024
But while SpaceX was prepared to perform a static fire Thursday to check on the booster repairs, NASA announced the visit from Axiom Space was going on hold because of an investigation with Russian space agency Roscosmos into recent repairs made on the Zvezda service module.
—Richard Tribou, The Orlando Sentinel, 12 June 2025
For several years, ground teams have monitored a slow air leak in the aft part of the service module, and NASA officials have identified it as a safety risk.
—ArsTechnica, 13 June 2025
See All Example Sentences for service module
Cite this Entry
“Service module.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/service%20module. Accessed 27 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share