Editing Harmony (ISS module) (section)

== Specifications ==
[[Image:ISS-27 American crew quarters.jpg|thumb|upright=1.3|right|Crew members hanging out of the USOS crew quarters]]
[[Image:ISS Node 2 module.jpg|thumb|upright=1.3|right|''Harmony'' during assembly at the [[Space Station Processing Facility]]]]

''Harmony'' is the second of three node modules on the [[United States Orbital Segment]] (USOS).<ref name="ESA1">{{cite web|url=http://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/International_Space_Station/Node_2_Connecting_Module|title=Node 2: Connecting Module|access-date=23 January 2020|publisher=ESA|year=2007|author=European Space Agency}}</ref> It is composed of a cylindrical, {{cvt|5.1|cm}} thick [[2219 aluminium alloy|2219-T851 aluminium alloy]] [[Pressure vessel|pressure shell]] with two endcones and is thermally insulated by a [[Metallised film|goldised]] [[Kapton]] [[Space blanket|blanket]]. It is protected from [[micrometeoroid]]s by 98 panels, each made from a composite sandwich of [[stainless steel]] and [[6061 aluminium alloy|6061-T6 aluminium alloy]], and a secondary barrier of [[Kevlar]]/[[Synthetic resin|resin]].<ref>{{cite web|url=https://www.nasa.gov/pdf/192719main_sts120_presskit.pdf|title=STS-120 Press Kit|date=October 2007|publisher=NASA|pages=33|access-date=January 23, 2020|archive-date=4 May 2021|archive-url=https://web.archive.org/web/20210504105904/https://www.nasa.gov/pdf/192719main_sts120_presskit.pdf|url-status=dead}} {{PD-notice}}</ref><ref name="ESA_factsheet">{{cite web|url=http://wsn.spaceflight.esa.int/docs/Factsheets/5%20Node%202%20LR.pdf|title=Node-2 Harmony Factsheet|pages=4–5|publisher=ESA|access-date=January 23, 2020}}</ref> The design is based on the existing [[Multi-Purpose Logistics Module]], as well as the [[European Space Agency]]'s ''[[Columbus (ISS module)|Columbus]]'' module (both of which have only one passive [[Common Berthing Mechanism]] [CBM]).<ref name="ESA1"/> There are six CBMs on ''Harmony'': the aft CBM that connects it to ''Destiny'' is passive; the rest are active.<ref name=her>{{cite web|title=ISS Interface Mechanisms and their Heritage|url=https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20110010964_2011009594.pdf|page=23|publisher=NASA|access-date=November 4, 2011}} {{PD-notice}}</ref>

''Harmony'' is managed by NASA's [[Marshall Space Flight Center]] in [[Huntsville, Alabama]]. Its deployment expanded the Space Station, allowing it to grow from the size of a three-bedroom house, to the space equivalent of a typical five-bedroom house, once the Japanese ''[[Kibō (ISS module)|Kibō]]'' and European ''[[Columbus (ISS module)|Columbus]]'' laboratories are attached. The Space Station robotic arm, [[Mobile Servicing System|Canadarm2]], is able to operate from a powered [[grapple fixture]] on the exterior of ''Harmony''.<ref name="NASA">{{cite web|url=http://www.nasa.gov/mission_pages/station/structure/elements/node2.html|title=Space Station Assembly: Harmony Node 2|access-date=September 28, 2007|publisher=NASA|year=2007|archive-date=26 December 2016|archive-url=https://web.archive.org/web/20161226201728/https://www.nasa.gov/mission_pages/station/structure/elements/node2.html|url-status=dead}} {{PD-notice}}</ref> ''Harmony'' is equipped with eight [[International Standard Payload Rack]]s: four avionics racks and four for stowage or crew quarters.<ref name="ESA_factsheet"/> The first two were delivered on [[STS-126]] and the second two on [[STS-128]].<ref>{{cite web|url=http://www.nasa.gov/pdf/287211main_sts126_press_kit2.pdf|title=STS-126 Press Kit|date=November 2008|publisher=NASA|access-date=September 26, 2011|archive-date=9 December 2008|archive-url=https://web.archive.org/web/20081209063050/http://www.nasa.gov/pdf/287211main_sts126_press_kit2.pdf|url-status=dead}} {{PD-notice}}</ref><ref>{{cite web |url=http://www.nasa.gov/pdf/379392main_STS-128_Press_Kit.pdf|title=STS-128 Press Kit|date=August 2009|publisher=NASA|access-date=September 26, 2011}} {{PD-notice}}</ref> After the cancellation of the [[Habitation Module]], ''Harmony'' was chosen to house the American Crew Quarters.<ref>{{cite web|url=https://www.youtube.com/watch?v=Q4dG9vSyUFQ|title=At Home with Commander Scott Kelly (Video)|date=December 6, 2010|publisher=NASA|access-date=May 8, 2011|location=International Space Station}} {{PD-notice}}</ref><ref>{{cite web |first1=James Lee|last1=Broyan |first2=Melissa Ann |last2=Borrego|first3=Juergen F. |last3=Bahr|title=International Space Station USOS Crew Quarters Development|url=https://ntrs.nasa.gov/citations/20080013462|date=January 1, 2008|access-date=November 2, 2022|publisher=SAE International}}</ref>