This morning the International Space Station’s Canadarm2 moved the Permanent Multipurpose Module from the Unity module to the Tranquility module. The module which was previously flown as a Multi-Purpose Logistics Module (MPLM) aboard the Space Shuttle was left at the station in February 2011 to provide additional storage space.
The was moved to continue the re-configuration of the station for the new Commercial Crew Vehicles expected to fly starting late next year.
The big takeaway from the PMM move is that now the astronauts on the ISS will have an unobstructed view to the port (left) from the Cupola.
— Just A. Tinker (@John_Gardi) May 27, 2015
Below are screen grabs of the move operation from NASA TV.