International Space Station By astronomy Nov 20, 1998 Zarya Launch Russian-built propulsion module, acting as an adaptor between the Russian and US segments. Period: Nov 20, 1998 to May 18, 2010 Major Attachments Dec 8, 1998 Unity Attached American-manned station, laid the foundation for future American modules Jul 25, 2000 Zvezda Attached Contains life support, electrical power distribution, flight control system, early living quarters, data processing system, and propulsion system. Oct 14, 2000 Z1 Truss Attached An early exterior framework that held solar panels for power, temporarily. Dec 3, 2000 P6 Integrated Truss Attached A module designed to derive its power from the conversion of solar power into electrical power. Feb 10, 2001 Destiny Attached The primary US research laboratory. Apr 22, 2001 Canadarm2 Attached Also known as the Mobile Servicing System, it is used in space station assembly and maintenance Jul 15, 2001 Joint Airlock Attached The main path for International Space Station spacewalk entry and departure. Sep 16, 2001 Pirs Attached Russian docking compartment Apr 11, 2002 S0 Truss Attached The junction that routes external utilities to the ISS's pressurized modules. Oct 10, 2002 S1 Truss Attached Provides structural support for the Active Control System, Equipment Translation Aid Kit, and a Mobile Transporter on starboard side. Nov 26, 2002 P1 Truss Attached Provides structural support for the Active Control System, Equipment Translation Aid Kit, and a Mobile Transporter on port side. Sep 12, 2006 P3/P4 Truss Attached A second port Truss to add to the first, P1. Dec 12, 2006 P5 Truss Attached The third port Truss segment, attached onto the P3/P4 segment. Oct 26, 2007 Harmony Attached A connecting passage between the US, European, And Japanese laboratories. Feb 11, 2008 Columbus Attached The European science laboratory. Mar 14, 2008 Kibo (ELM-PS) Attached A segment of the Japanese laboratory. Jun 3, 2008 Kibo (JPM) Part of the Japanese space research facility. Mar 19, 2009 S6 Truss The fourth Truss segment on starboard. Nov 12, 2009 Poisk The Russian Poisk module is used for scientific research and experiments. Feb 12, 2010 Tranquility Tranquility provides extra room for crew members on the space station, and for life support and environmental control systems. May 18, 2010 Rassvet The Rassvet module enhances the space station's research capabilities.