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[[File:ISS Node STA.jpg|thumb|The Node STA in the [[Space Station Processing Facility]] during 2010]] |
[[File:ISS Node STA.jpg|thumb|The Node STA in the [[Space Station Processing Facility]] during 2010]] |
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'''Node 4''', also known as the '''Docking Hub System''' ('''DHS'''), was a proposed module of the [[International Space Station]] (ISS). In 2011 [[NASA]] was considering a 40-month design and development effort for Node 4 that would result in its launch in late 2013.<ref name=NasaSpaceflight>{{cite web|last=Bergin|first=Chris|title=Soyuz TMA-19 relocated as ISS managers discuss Node 4 addition|url=http://www.nasaspaceflight.com/2010/06/soyuz-tma-19-relocated-iss-discuss-node-4-addition/|work=NasaSpaceflight.com|accessdate=4 March 2011}}</ref> |
'''Node 4''', also known as the '''Docking Hub System''' ('''DHS'''), was a proposed module of the [[International Space Station]] (ISS). In 2011 [[NASA]] was considering a 40-month design and development effort for Node 4 that would result in its launch in late 2013.<ref name=NasaSpaceflight>{{cite web|last=Bergin|first=Chris|title=Soyuz TMA-19 relocated as ISS managers discuss Node 4 addition|url=http://www.nasaspaceflight.com/2010/06/soyuz-tma-19-relocated-iss-discuss-node-4-addition/|work=NasaSpaceflight.com|accessdate=4 March 2011}}</ref> |
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In December 2011 [[Boeing]] proposed using Node 4 as the core of an [[Exploration Gateway Platform]] to be constructed at the [[ISS]] and relocated via [[space tug]] to an Earth-Moon [[Lagrange point]] (EML-1 or 2). The purpose of the platform would be to support lunar landing missions with a reusable [[Apollo Lunar Module|lunar lander]] after the first two [[Space Launch System|SLS]] flights. It would also satisfy the need for a L1 [[propellant depot]] for lunar missions. Other hardware would include an airlock, an 'international module', and a [[MPLM]] based habitat module.<ref>{{cite web|author=Chris Bergin |url=http://www.nasaspaceflight.com/2011/12/exploration-gateway-platform-hosting-reusable-lunar-lander-proposed/ |title=Exploration Gateway Platform hosting Reusable Lunar Lander proposed |publisher=NASASpaceFlight.com |date=2011-12-02 |accessdate=2013-11-22}}</ref> |
In December 2011 [[Boeing]] proposed using Node 4 as the core of an [[Exploration Gateway Platform]] to be constructed at the [[ISS]] and relocated via [[space tug]] to an Earth-Moon [[Lagrange point]] (EML-1 or 2). The purpose of the platform would be to support lunar landing missions with a reusable [[Apollo Lunar Module|lunar lander]] after the first two [[Space Launch System|SLS]] flights. It would also satisfy the need for a L1 [[propellant depot]] for lunar missions. Other hardware would include an airlock, an 'international module', and a [[MPLM]] based habitat module.<ref>{{cite web|author=Chris Bergin |url=http://www.nasaspaceflight.com/2011/12/exploration-gateway-platform-hosting-reusable-lunar-lander-proposed/ |title=Exploration Gateway Platform hosting Reusable Lunar Lander proposed |publisher=NASASpaceFlight.com |date=2011-12-02 |accessdate=2013-11-22}}</ref> |
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In June 2020 the Node STA was moved to the [[Shuttle Landing Facility]] to make room in the [[Space Station Processing Facility]]. |
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== See also == |
== See also == |
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Node 4, also known as the Docking Hub System (DHS), was a proposed module of the International Space Station (ISS). In 2011 NASA was considering a 40-month design and development effort for Node 4 that would result in its launch in late 2013.[1]
Node 4 would have been built using the Node Structural Test Article (STA) and docked to the forward port of the Harmony module. The Structural Test Article was built to facilitate testing of ISS hardware and was intended to become Node 1. However, during construction, structural design flaws were discovered. The under-construction Node 2 was renamed Node 1 and the STA (ex-Node 1) was put into storage at the Kennedy Space Center (KSC).[2]
Since the Space Shuttle program was retired, had a decision to build and launch Node 4 been taken, it would have been launched by an Atlas VorDelta IV rocket.[1]
In December 2011 Boeing proposed using Node 4 as the core of an Exploration Gateway Platform to be constructed at the ISS and relocated via space tug to an Earth-Moon Lagrange point (EML-1 or 2). The purpose of the platform would be to support lunar landing missions with a reusable lunar lander after the first two SLS flights. It would also satisfy the need for a L1 propellant depot for lunar missions. Other hardware would include an airlock, an 'international module', and a MPLM based habitat module.[3]
In June 2020 the Node STA was moved to the Shuttle Landing Facility to make room in the Space Station Processing Facility.
