Editing Service module (section)

{{short description|Spacecraft compartment}}

[[Aعلى الفيسبوك منال السلمان|A]] '''service module''' (also known as an '''equipment module''' or '''instrument compartment''') is a component of a [[human spaceflight|crewed]] [[space capsule]] containing a variety of support systems used for spacecraft operations. Usually located in the uninhabited area of the spacecraft, the service module serves a storehouse of critical subsystems and supplies for the mission such as electrical systems, environmental control, and propellant tanks. The service module is jettisoned upon the completion of the mission, and usually burns up during [[atmospheric reentry]].<ref name="csm07">{{cite web |url=https://www.hq.nasa.gov/alsj/CSM07_Service_Module_Overview_pp53-60.pdf |title=CSM07 Service Module Overview |website=NASA |access-date=February 5, 2021}}</ref>

The Russian phrase for ''service module'' for the [[Soyuz spacecraft]] is sometimes more directly translated "Instrument-Assembly Compartment". This comes from the design feature of having the guidance and other computer systems in a separate pressure chamber (the instruments) from the rocket engines, their propellant tanks, and the life support tanks (from the German ''Aggregat'', which gets translated "assembly"). The Russians use the term "module" (модуль) primarily in regards to elements of a modular [[space station]], e.g. the [[Zvezda Service Module]].{{cn|date=February 2021}}