Editing International Space Station (section)

==== ''Unity'' ====
{{Main|Unity (ISS module)}}
[[File:ISS Unity module.jpg|thumb|''Unity'' as seen by {{OV|105}} during [[STS-88]]]]

''Unity'', also known as ''Node 1'', is the inaugural U.S.-built component of the ISS.<ref name="nssdca-1998-069f">{{Cite web|title=NASA – NSSDCA – Spacecraft – Details|url=https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1998-069F|url-status=live|archive-url=https://web.archive.org/web/20230423215409/https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1998-069F|archive-date=23 April 2023|access-date=6 May 2022|website=nssdc.gsfc.nasa.gov|publisher=[[NASA]]|id=1998-069F}}</ref><ref>{{cite web|last=Loff|first=Sarah|date=15 November 2018|title=Unity|url=http://www.nasa.gov/mission_pages/station/structure/elements/unity|access-date=6 May 2022|website=NASA|archive-date=5 June 2022|archive-url=https://web.archive.org/web/20220605221424/https://www.nasa.gov/mission_pages/station/structure/elements/unity/|url-status=dead}}</ref> Serving as the connection between the Russian and U.S. segments, this cylindrical module features six [[Common Berthing Mechanism]] locations ([[Forward (aircraft)|forward]], [[aft]], [[Port (nautical)|port]], [[starboard]], [[zenith]], and [[nadir]]) for attaching additional modules. Measuring {{convert|4.57|m}} in diameter and {{convert|5.47|m}} in length, ''Unity'' was constructed of steel by [[Boeing]] for NASA at the [[Marshall Space Flight Center]] in [[Huntsville, Alabama]]. It was the first of three connecting nodes – ''Unity'', ''Harmony'', and ''Tranquility'' – that forms the structural backbone of the U.S. segment of the ISS.<ref name="nasa-roy-20091020">{{Cite web|url=https://blogs.nasa.gov/sailing_with_nasa/2009/10/20/post_1256076937193/|title=ET-134's Mission,STS-130: Launching Tranquility|last=Roy|first=Steve|date=20 October 2009|publisher=[[NASA]]|access-date=23 November 2023|url-status=live|archive-url=https://web.archive.org/web/20230322123432/https://blogs.nasa.gov/sailing_with_nasa/2009/10/20/post_1256076937193/|archive-date=22 March 2023}}</ref>