

Tranquility was launched with the Cupola attached to its port-facing Common Berthing Mechanism (CBM). One of the berthing locations is used by the Cupola, which houses a Robotic Work Station inside it to assist in the assembly/maintenance of the ISS, and offers a window for Earth observations. Tranquility provides six berthing locations with power, data and commanding, thermal and environmental control, and crew access for more attached habitable volumes or for crew transportation vehicles or stowage, or an appropriate combination of all of these. The metal is heat-treated, enabling it to have similar ballistics resistance to stainless steel. The module pressure shell is constructed of 2219 aluminum and its debris shield is made from hardened 6061 aluminum. ESA teamed up with the Italian Space Agency (ASI) to manufacture both Harmony and Tranquility at Thales Alenia Space in Turin, Italy. ESA committed to build and fund both Harmony and Tranquility as well as the ATV in order to use NASA ISS facilities, fly astronauts on the Shuttle and for other ISS services. Tranquility was built within the ESA-NASA ISS bartering system. The Tranquility node during initial manufacturing
