Editing Marshall Space Flight Center (section)

====International Space Station====
NASA began planning to build a space station in 1984, named ''Freedom'' in 1988. By the early 1990s, planning for four different stations were underway: the American ''Freedom'', the Soviet/Russian ''[[Mir-2]]'', the European ''Columbus'', and the Japanese ''[[Japanese Experimental Module|Kibō]]''. In November 1993, plans for ''Freedom'', ''Mir-2'', and the European and Japanese modules were incorporated into a single [[International Space Station]] (ISS).{{citation_needed|date=July 2019}} The ISS is composed of modules assembled in orbit, starting with the Russian module [[Zarya (ISS module)|''Zarya'']] in November 1998. This was followed in December by the first U.S. module, ''Unity'' also called Node 1, built by Boeing in facilities at MSFC.<ref>{{cite web |url=http://www.boeing.com/defense-space/space/spacestation/docs/ISS_overview.pdf |title=Boeing: International Space Station |website=www.boeing.com |access-date=22 March 2018 |archive-date=13 October 2012 |archive-url=https://web.archive.org/web/20121013222948/http://www.boeing.com/defense-space/space/spacestation/docs/ISS_overview.pdf |url-status=live }}</ref>

ISS assembly continued throughout the next decade, with continuously occupancy since February 7, 2001. Since 1998, 18 major U.S. components on the ISS have been assembled in space. In October 2007, [[Harmony (ISS module)|''Harmony'']] or Node 2, was attached to ''Destiny''; also managed by MSFC, this gave connection hubs for European and Japanese modules as well as additional living space, allowing the ISS crew to increase to six. The 18th and final major U.S. and Boeing-built element, the Starboard 6 Truss Segment, was delivered to the ISS in February 2009. With this, the full set of solar arrays could be activated, increasing the power available for science projects to 30&nbsp;kW. That marked the completion of the [[United States Orbital Segment]] (USOS) of the station.{{citation_needed|date=July 2019}} On 5 March 2010, Boeing officially turned over the USOS to NASA.<ref>{{Cite web |url=http://boeing.mediaroom.com/2010-03-05-Boeing-Transfers-US-Portions-of-International-Space-Station-to-NASA |title=Boeing Transfers US Portions of International Space Station to NASA |date=5 March 2010 |website=Boeing |access-date=18 August 2017 |archive-date=19 August 2017 |archive-url=https://web.archive.org/web/20170819062816/http://boeing.mediaroom.com/2010-03-05-Boeing-Transfers-US-Portions-of-International-Space-Station-to-NASA |url-status=live }}</ref>