service module

noun

Definition of service module

: 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

The Apollo 11 command and service modules are photographed from the lunar module in lunar orbit during the Apollo 11 lunar landing mission. Los Angeles Times, "The moon landing: the TV show of the (half) century," 19 July 2019 The Orion crew capsule and service modules will be on board. Ashley Strickland, CNN, "NASA details Artemis moon missions, named after Apollo's twin sister," 24 July 2019 The vehicle has eight auxiliary thrusters on the service module as backup in case the main engine fails. Chabeli Herrera, orlandosentinel.com, "On Apollo, using the bathroom was ‘messy.’ America’s next moonshot will be radically different," 21 July 2019 Flying backward, the main engine in Columbia's service module ignited at 1:21 p.m. on July 19, burning for five minutes and 57 seconds to slow the ship down enough to into orbit. William Harwood, CBS News, "50 years later, Apollo 11's "one giant leap" remains a defining moment in human history," 14 July 2019 The lunar module, the spacecraft Aldrin and Armstrong used to get from the main command and service module in lunar orbit to the moon's surface, is seen in the top left of the photograph. Ryan W. Miller, USA TODAY, "Buzz Aldrin and Neil Armstrong put a flag on the moon. Here's what you can and can't see in the iconic photo," 19 July 2019 Westcott was a mechanical engineer and, in the early ‘60s, part of the team that designed the Apollo command and service module for NASA at North American Aviation’s plant in Downey, Calif. oregonlive.com, "He was there when it really was a moon shot, and he had to get them home safely: Steve Duin," 15 July 2019 The following day Armstrong and Aldrin entered the lunar module (LM) lander while Collins remained in lunar orbit aboard the command and service module (CSM). Curtis Roelle, baltimoresun.com/maryland/carroll, "Star Points: On the occasion of its golden anniversary, looking back at the first moon landing," 12 July 2019 How long is that heavy Orion spacecraft, with an under-powered European service module, going to hang around in the inventory? Eric Berger, Ars Technica, "Buzz Aldrin is looking forward, not back—and he has a plan to bring NASA along," 9 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'service module.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of service module

1961, in the meaning defined above

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Last Updated

30 Sep 2019

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The first known use of service module was in 1961

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