Spacecraft cemetery: Difference between revisions

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→‎Incidents: Fixed blatantly false info. Skylab fell in the Indian Ocean and infamously crashed into Western Australia near Esperance. See Skylab article.
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The '''spacecraft cemetery''', known more formally as the '''South Pacific Ocean(ic) Uninhabited Area''',<ref name="Gizmodo">{{cite web |title=This watery graveyard is the resting place for 161&nbsp;sunken spaceshipsspacecraft |last=Smith-Strickland |first=Kiona |website=Gizmodo |url=https://gizmodo.com/this-watery-graveyard-holds-161-sunken-spaceships-1703212211 |access-date=2019-01-08}}</ref><ref>{{cite web |title=Making sure ATV reentry is safe |date=2013-10-30 |website=Orion blog |url=http://blogs.esa.int/orion/2013/10/30/making-sure-atv-reentry-is-safe/ |access-date=2019-01-08}}</ref> is a region in the southern [[Pacific Ocean]] east of [[New Zealand]],<ref>{{cite web |title=NZ spacecraft cemetery gets another skip from orbit |url=http://newszealand.blogspot.com/2007/01/nz-spacecraft-cemetery-gets-another.html |date=18 January 2007 |access-date=2009-02-11 |url-status=dead |archive-url=https://web.archive.org/web/20081011012812/http://newszealand.blogspot.com/2007/01/nz-spacecraft-cemetery-gets-another.html |archive-date=11 October 2008}}</ref> where [[spacecraft]] that have reached the end of their usefulness are routinely crashed. The area is roughly centered on "[[Point Nemo]]", the [[Pole of inaccessibility#Oceanic pole of inaccessibility|oceanic pole of inaccessibility]], the location farthest from any land.<ref name=Gizmodo/>
 
The defunct [[space station]] ''[[Mir]]''<ref name=":8">{{cite web |title=MIR Space Station is now reentered – March 23, 2001 – 06:45 UTC |date=22 March 2001 |url=http://www.zarya.info/Tracking/Mir/Mir-Re-entry2.php |access-date=1 May 2015}}</ref> and six [[Salyut programme|Salyut]] stations<ref name=Gizmodo/> are among those that have been [[ditching|ditched]] there. Other spacecraft that have been routinely [[Scuttling|scuttled]] in the region include various [[cargo spacecraft]] to the [[International Space Station]], including Russian ''[[Progress (spacecraft)|Progress]]'' cargo craft,<ref>{{cite web |title=Progress Ship returns to Earth with trash and no longer needed stuff |date=26 July 2013 |series=Progress M-18M mission updates |url=http://www.spaceflight101.com/progress-m-18m.html |access-date=1 July 2013 |url-status=dead |archive-url=https://web.archive.org/web/20130801203442/http://www.spaceflight101.com/progress-m-18m.html |archive-date=1 August 2013}}</ref> the [[JAXA|Japan Aerospace Exploration Agency]] [[H-II Transfer Vehicle]],<ref name="nasa20120923">{{cite web |author=Love, John |date=21 September 2012 |title=Lead Increment Scientist's highlights for week of Sept. 10, 2012 |publisher=[[NASA]] |url=http://www.nasa.gov/mission_pages/station/research/news/wklysumm_week_of_sept10.html |access-date=23 September 2012}}</ref> and the [[ESA|European Space Agency]]'s [[Automated Transfer Vehicle]].<ref name="nasa20081006">{{cite web |title=Image of the Day gallery |date=6 October 2008 |publisher=[[NASA]] |url=http://www.nasa.gov/multimedia/imagegallery/image_feature_1188.html |access-date=2013-05-05}}</ref><ref name="esa20110621">{{cite web |url=http://blogs.esa.int/atv/2011/06/21/end-of-mission/ |publisher=[[European Space Agency]] |title=Automated Transfer Vehicle page |access-date=21 June 2011}}</ref><ref name="stdc20121004">{{cite web |title=Mission accomplished for ATV Edoardo Amaldi |date=4 October 2012 |website=Space-Travel.com |url=http://www.space-travel.com/reports/Mission_accomplished_for_ATV_Edoardo_Amaldi_999.html |access-date=8 October 2012}}</ref> A total of more than 263&nbsp;spacecraft were disposed in this area between 1971 and 2016.<ref name=":3">{{cite magazine |last=Stirone |first=Shannon |date=13 June 2016 |title=This is where the International Space Station will go to die |magazine=[[Popular Science magazine]] |url=http://www.popsci.com/this-is-where-international-space-station-will-go-to-die |access-date=16 June 2016}}</ref> The [[International Space Station]] is slated to end up in the spacecraft cemetery upon "retirement".<ref name=":12"/>
 
Current considerations of the spacecraft cemetery include the environmental impact it creates on marine life within the [[South Pacific Ocean]] Uninhabited Region.<ref name=":32">{{cite journal |last1=de Lucia |first1=Vito |last2=Iavicoli |first2=Viviana |title=From outer space to ocean depths: The 'Spacecraft Cemetery' and the protection of the marine environment in areas beyond national jurisdiction |url=https://scholarlycommons.law.cwsl.edu/cgi/viewcontent.cgi?article=1551&context=cwilj |journal=California Western International Law Journal |volume=2 |pages=367–369 |via=Scholarly Commons}}</ref> This region is beyond legal jurisdiction of any country, henceand therefore faces less regulation.<ref name=":32"/> Currently two treaties outline certain laws that can be applied to the spacecraft cemetery.{{Citation needed|date=June 2024}} The [[Outer Space Treaty]] produced by the United Nations reflects on damages caused by spacecraft on opposing nations.<ref name=":22">{{Cite web|title=Outer Space Treaty|url=https://www.unoosa.org/oosa/en/ourwork/spacelaw/treaties/outerspacetreaty.html|access-date=2021-11-02|website=www.unoosa.org}}</ref> The [[United Nations Convention on the Law of the Sea]] reflects on general marine pollution.<ref name=":62">{{cite report |title=Convention on the Law of the Sea |publisher=[[United Nations]] |url=https://www.un.org/depts/los/convention_agreements/texts/unclos/unclos_e.pdf |access-date=2021-11-01}}</ref> Marine pollution can be caused by spillage of the highly toxic rocket propellant [[hydrazine]].<ref name=":32"/> Other forms of space debris removal are being considered and produced to slow the exponential growth of space debris orbiting Earth due to increased space exploration.<ref name=":32" /><ref name=":42">{{cite magazine |last=David |first=Leonard |date=14 April 2021 |title=Space junk removal is not going smoothly |magazine=[[Scientific American]] |url=https://www.scientificamerican.com/article/space-junk-removal-is-not-going-smoothly/ |access-date=2022-02-03 |url-status= |lang=en}}</ref>
 
== Purpose ==
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== Incidents ==
At least 264 spacecraft were disposed in this area between 1971 and 2016.<ref name=":3" /> The defunct [[space station]] [[Mir]]<ref>{{Cite web|title=Mir Re-entry – Updated Analysis|url=http://www.zarya.info/Tracking/Mir/Mir-Re-entry2.php|access-date=2021-10-28|website=www.zarya.info}}</ref> and six [[Salyut programme|Salyut]] stations<ref name="Gizmodo" /> are among the nearly 200 pieces of Russian spacecraft debris in this region, making Russia the largest contributor of spacecraft in the cemetery.<ref name=":32" /> The remaining pieces of debris in the cemetery belong to the United States, Europe, Japan, as well as certainand private organizations. Among American spacecraft, remnants of the [[Skylab|Skylab space station]] were not deposited into the spacecraft cemetery, but in Western Australia.<ref name=":32" />
 
The decommissioning of [[Tiangong-1]], the first Chinese space station, was an unsuccessful targeted re-entry at Point Nemo. During an extended mission phase, control was lost due to a power failure, leading to an uncontrolled landing outside of the spacecraft cemetery.<ref name="Gizmodo" />
 
According to the U.S. guidelines dictating which spacecraft pose enough risk to require a controlled landing, it is recommended that the [[International Space Station]] undergo a controlled de-orbit at the end of its life. The same is recommended for the [[Hubble Space Telescope]].<ref>{{Cite journal|last=Patera|first=Russell|title=Hazard Analysis for Uncontrolled Space Vehicle Reentry|journal=Journal of Spacecraft and Rockets|year=2008|volume=45|issue=5|pages=1031–1041|doi=10.2514/1.30173|bibcode=2008JSpRo..45.1031P|via=Aerospace Research Central}}</ref>
 
== Laws ==
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[[Space debris]] is any form of man-made object orbiting the Earth that no longer serves a useful function.<ref name=":32"/> Currently more than 27,000&nbsp;pieces of space debris are orbiting earth at high velocities, threatening the safety of human and robotic missions, as well as causing damage to spacecraft.<ref name=":32"/> There are few space debris removal processes, one of which is depositing large spacecraft in the spacecraft cemetery on earth, although, due to exhausted maneuvering fuel reserves, in the past this was rarely done.
 
The most common way to eliminate space debris, when actually done, is to de-orbit crafts, causing them to burn up during re-entry into the Earth's atmosphere due to high velocities and air compression resulting in a temperature increase of air and the craft's surface.<ref>{{cite web |title=What generates all the heat during re-entry when the space shuttle returns to Earth? |department=Science Guys |publisher=[[Union University]] |place=[[Jackson, Tennessee]] |website=www.uu.edu |url=https://www.uu.edu/dept/physics/scienceguys/2003Mar.cfm |access-date=2021-10-28}}</ref> Other common and less controlled processes for space removal include allowing the crafts to decay, collide with other objects, or causing them to explode, resulting in smaller pieces of space debris.<ref name=":42"/> CurrentlyAs of 2021, new processes for space debris removal are being developed to reduce the exponentialunabated growthproliferation of space debris orbiting earth, such as nets, magnetized collecting arms, and more.<ref name=":42"/>
 
==See also==
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* [[Wrecking yard]]
* [[Space sustainability]]
* [[Splashdown]]
 
==References==