Editing Liquid rocket booster (section)

{{Short description|Same as a solid rocket booster, but uses liquid instead of solid fuel}}
A '''liquid rocket [[booster (rocketry)|booster]]''' ('''LRB''') uses [[liquid fuel]] and [[oxidizer]] to give a [[Liquid-propellant rocket|liquid-propellant]] or [[hybrid rocket]] an extra boost at take-off, and/or increase the total payload that can be carried. It is attached to the side of a rocket. Unlike [[solid rocket booster]]s, LRBs can be throttled down if the engines are designed to allow it, and can be shut down safely in an emergency for additional escape options in [[human spaceflight]].{{citation needed|date=March 2017}}