Why NASA Is Re-Configuring Part of the International Space Station

Robotics team prepares to move storage module on Wednesday.

The Permanent Multipurpose Module, which is used for storage, will be detached from the Unity module and carefully moved via a robotic arm to the forward port of the station's Tranquility module, NASA officials said.

An animation posted online by NASA shows how the move will be carried out on Wednesday if all goes according to plan.

The module being moved was previously used to take supplies back and forth from the station during shuttle assembly missions.

After its final launch on board the now-defunct shuttle Discovery, the 22-feet long, 11-ton module was bolted to the International Space Station.