Components and Structures
Scientific Laboratories: The European Space Agency's Columbus Orbital Facility; a Japanese Experiment Module, with centrifuge facility; and three Russian Research Modules. The Boeing-built U.S. lab module, Destiny (already on orbit), combined European and Japanese laboratories together provide 33 payload racks; additional science rack space is available in the three Russian laboratory modules. The Japanese Experiment Module has an exposed platform for experiments that require direct contact with the space environment. The module also has a small robotic arm for payload operations on the exposed platform.
Unity, Nodes 1, 2 & 3
Russian Service Module: provided the very first International Space Station living and lab quarters for the intrepid pioneers who work at the frontiers of science and history as they establish a permanent human presence in space.
Zarya: The Control Module: A 21-ton power, communication and spacecraft control element that on Nov. 20, 1998, was rocketed into history as the first International Space Station component to be sent into orbit.
Crew Transfer Vehicles: Include a modified Russian Soyuz capsule and a Crew Return Vehicle, able to accommodate a crew of three - two when transferring an ill or injured crew member, plus attendant medical equipment.
Trusses: The backbone of International Space Station, formed by five pre-integrated truss segments. Each segment provides the foundation for subsystem hardware installation, utility distribution power generation, heat rejection, and external payload accommodations.
Other Major U.S. Contractors: