Editing Solid rocket booster (section)

{{short description|Solid propellant motor used to augment the thrust of a rocket}}
[[File:Artemis_I_SLS_Core_Stage_Prep_for_Lift_Mate.jpg|thumb|[[Space Launch System|SLS]]'s solid rocket boosters]]
A '''solid rocket [[booster (rocketry)|booster]]''' ('''SRB''') is a [[solid-propellant rocket|solid propellant]] motor used to provide [[thrust]] in spacecraft launches from initial launch through the first ascent. Many launch vehicles, including the [[Atlas V]],<ref>{{citation|publisher=Lockheed Martin |section=Data |title=Assets |url=http://www.lockheedmartin.com/data/assets/13434.pdf |url-status=dead |archive-url=https://web.archive.org/web/20111217084517/http://www.lockheedmartin.com/data/assets/13434.pdf |archive-date=December 17, 2011 }}</ref> [[Space Launch System|SLS]] and [[Space Shuttle]], have used SRBs to give launch vehicles much of the thrust required to place the vehicle into orbit. 

The Space Shuttle used two [[Space Shuttle Solid Rocket Booster|Space Shuttle SRBs]], which were the largest solid propellant motors ever built until the [[Space Launch System]] and the first designed for recovery and reuse.<ref>{{Cite web|title = HSF - The Shuttle|url = http://spaceflight.nasa.gov/shuttle/reference/shutref/srb/srb.html|archive-url = https://web.archive.org/web/19990421084627/http://spaceflight.nasa.gov/shuttle/reference/shutref/srb/srb.html|url-status = dead|archive-date = 1999-04-21|website = spaceflight.nasa.gov|access-date = 2016-02-08}}</ref> 
The propellant for each solid rocket motor on the Space Shuttle weighed approximately 500,000 kilograms.<ref name="science_ksc_nasa_gov-srb_html_srb">{{cite web | publisher = NASA | location = USA | title = Solid rocket boosters | url = http://science.ksc.nasa.gov/shuttle/technology/sts-newsref/srb.html#srb | date = 2009-08-09 | access-date = 2004-04-02 | archive-date = 2012-02-16 | archive-url = https://web.archive.org/web/20120216005534/http://science.ksc.nasa.gov/shuttle/technology/sts-newsref/srb.html#srb | url-status = dead }}.</ref>