SRMS

The Shuttle Remote Manipulator System (SRMS), also known as the Canadarm (Canadarm 1), is a mechanical arm that was used on the Space Shuttle orbiters to maneuver a payload from the payload bay of the orbiter to its deployment position and then release it. After the destruction of Space Shuttle Columbia during STS-107, NASA began to always pair the Canadarm with the Orbiter Boom Sensor System (OBSS), a boom containing instruments to inspect the exterior of the shuttle for damage to the thermal protection system.

Read more about SRMS:  Specifications, Capabilities, Development, Usage, In Popular Media, See Also