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{{Era|Covenant|Human|UNSC|HCW|Post}}
{{Status|Canon}}
{{Wikipedia}}
{{Wikipedia}}
{{Center|''For the Spartan armor variant, see [[MJOLNIR Powered Assault Armor/V variant]].''}}
{{Center|'''''EVA''' redirects here. For the MJOLNIR armor variant, see [[EVA-class Mjolnir]].''}}
[[File:Halo-A-Hero-Falls-Spacewoman.png|thumb|300px|A non-combat vacuum suit in [[2558]].]]
[[File:HCEA Terminals AmericanAstronaut.jpg|thumb|300px|An [[United Republic of North America|American]] astronaut on [[Luna]].<ref>''[[Halo: Combat Evolved Anniversary]]'', [[Terminal (Halo: Combat Evolved Anniversary)/One|Terminal One]]</ref>]]
'''Extra-vehicular activity''', often abbreviated simply to '''EVA''', is the term applied to external operations by specialist personnel in a vacuum environment outside of a spaceship.
'''Extra-vehicular activity''', often abbreviated simply to '''EVA''', is the term applied to external operations by specialist personnel in a vacuum environment outside of a spaceship.


==Usage==
==Usage==
===Human operation===
===Human operation===
[[File:MarineVacSuit.png|thumb|250px|A [[UNSC Marine Corps|UNSC Marine]] during a EVA operation.]]
[[File:HM Infinity.jpg|thumb|300px|A [[United Nations Space Command|UNSC]] specialist performing an EVA.]]
[[Vacuum suit|Pressurized suits]] are a necessity during EVA operations due to the vacuum of space. In addition, [[thruster pack]]s are needed for maneuvering when not tethered to a spacecraft. Combat EVAs pose a significantly greater risk to those performing it, due to the chance of suit decompression in the vacuum if hit by bullets, shrapnel, etc. [[Civilian]] welders and technicians perform EVAs in order to repair ships, such as that performed upon the {{UNSCShip|Gettysburg}} in the [[Eridanus system]].<ref>'''[[Halo: First Strike]]''', ''page 90'' (2003 edition); ''page 336'' (2010 edition)</ref> The UNSC also employs specialized EVA-equipped engineers on their warships such as the {{UNSCShip|Spirit of Fire}} to perform repairs and maintenance work on the outer hull. Specialized zero-G vehicles are also used to perform EVA, such as the [[OF92 Booster Frame|Open Frame 92/Extra-Vehicular Activity]].<ref>'''[[Halo Legends]]''', ''[[The Package]]''</ref>
[[Vacuum suit|Pressurized suits]] are a necessity during EVA operations due to the vacuum of space. In addition, [[thruster pack]]s are needed for maneuvering when not tethered to a spacecraft. Combat EVAs pose a significantly greater risk to those performing it, due to the chance of suit decompression in the vacuum if hit by bullets, shrapnel, etc. [[Civilian]] welders and technicians perform EVAs in order to repair ships, such as that performed upon the {{UNSCShip|Gettysburg}} in the [[Eridanus system]].<ref>'''[[Halo: First Strike]]''', ''page 90'' (2003 edition); ''page 336'' (2010 edition)</ref> The UNSC also employs specialized EVA-equipped engineers on their warships such as the {{UNSCShip|Spirit of Fire}} to perform repairs and maintenance work on the outer hull. Specialized zero-G vehicles are also used to perform EVA, such as the [[OF92 Booster Frame|Open Frame 92/Extra-Vehicular Activity]].<ref>'''[[Halo Legends]]''', ''[[The Package (animated short)|The Package]]''</ref>


The pilot variant of the [[UNSC Marine Corps Battle Dress Uniform]] was generally equipped with extra-vehicular activity integration for any exoatmospheric operations.<ref>'''[[Halo Encyclopedia]]''', ''page 57'' (2011 edition)</ref> The [[Summa Deep Space Incident]] sparked multiple projects related to research of EVA equipment, including the [[MJOLNIR Powered Assault Armor/V variant|MJOLNIR EVA variant]], designed for better extra-vehicular activity performance.<ref>'''[[Halo 3]]''', ''in-game [[armor permutations (Halo 3)|armor permutation]] description''</ref>
The pilot variant of the [[UNSC Marine Corps Battle Dress Uniform]] was generally equipped with extra-vehicular activity integration for any exoatmospheric operations.<ref>'''[[Halo Encyclopedia (2009 edition)]]''', ''page 57'' (2011 edition)</ref> The [[Summa Deep Space Incident]] sparked multiple projects related to research of EVA equipment, including the [[MJOLNIR Powered Assault Armor/V variant|MJOLNIR EVA variant]], designed for better extra-vehicular activity performance.<ref>'''[[Halo 3]]''', ''in-game [[Armor customization (Halo 3)|armor permutation]] description''</ref>
 
[[SPARTAN-II program|SPARTAN-II]] [[Blue Team]] has performed several notable combat EVAs: At the [[Battle of Chi Ceti]] in [[2525]], they inserted into a [[Covenant]] [[Unrelenting|warship]], planted a missile warhead and were extracted by a [[D77-TC Pelican]];<ref>'''[[Halo: The Fall of Reach]]''', ''page 152''</ref> At the [[Fall of Reach]], in [[2552]], they performed another EVA in order to purge [[UNSC Circumference|a ship]]'s NAV database on an [[Gamma Station|orbital station]] in accordance with the [[Cole Protocol]].<ref name="for">'''Halo: The Fall of Reach''', ''page 308''</ref> [[John-117]] of Blue Team performed an EVA mission aboard the ''[[Ascendant Justice]]'' while in an anomalous slipspace dimension,<ref>'''Halo: First Strike''', ''page 280'' (2003 edition); ''page 114'' (2010 edition)</ref> the first known [[slipstream space|slipspace]] EVA and another at [[Earth]], clearing hostiles off the outside of the [[Cairo Station (station)|''Cairo'']] [[orbital defense platform]] and removing and re-purposing a Covenant [[antimatter bomb]].<ref name="h2">'''[[Halo 2]]''', [[campaign]] level ''[[Cairo Station]]''</ref>
 
By [[2554]], extensive EVA training was common for all Spartans.<ref>''[[Halo: Fractures]]'', ''[[Lessons Learned]]''</ref>


[[SPARTAN-II program|SPARTAN-II]] [[Blue Team]] has performed several notable combat EVAs: At the [[Battle of Chi Ceti]] in [[2525]], they inserted into a [[Covenant]] [[Unrelenting|warship]], planted a missile warhead and were extracted by a [[D77-TC Pelican]];<ref>'''[[Halo: The Fall of Reach]]''', ''page 152''</ref> At the [[Fall of Reach]], in [[2552]], they performed another EVA in order to purge [[UNSC Circumference|a ship]]'s NAV database on an [[Gamma Station|orbital station]] in accordance with the [[Cole Protocol]].<ref name="for">'''Halo: The Fall of Reach''', ''page 308''</ref> [[John-117]] of Blue Team performed an EVA mission aboard the ''[[Ascendant Justice]]'' while in an anomalous slipspace dimension,<ref>'''Halo: First Strike''', ''page 280'' (2003 edition); ''page 114'' (2010 edition)</ref> the first known [[slipstream space|slipspace]] EVA and another at [[Earth]], clearing hostiles off the outside of the [[Cairo Station|''Cairo'']] [[orbital defense platform]] and removing and re-purposing a Covenant [[antimatter bomb]].<ref name="h2">'''[[Halo 2]]''', [[campaign]] level ''[[Cairo Station (level)|Cairo Station]]''</ref>
===Covenant operation===
===Covenant operation===
The Covenant also perform extra-vehicular activity. [[Sangheili Ranger]]s use specialized vacuum-sealed armor to protect themselves from the effects of a vacuum environment, in order to plant [[antimatter charge]]s and support boarding parties.<ref name="for"/><ref name="h2"/> [[Kig-Yar Ranger]]s in vacuum suits were also used, though their suits were more easily damaged than a Sangheili suit as they were built for external maintenance and lacked personal [[energy shielding]].<ref>'''[[Halo: Contact Harvest]]''', ''pages 124-125''</ref><ref>'''[[Halo Wars: Genesis]]'''</ref> Sangheili, Kig-Yar, and [[Unggoy Ranger]]s were employed by [[Jul 'Mdama]]'s [[Jul 'Mdama's Covenant faction|reformed Covenant faction]] for extra-vehicular activity purposes.<ref name="H4 Interactive Guide">[http://www.halowaypoint.com/en-US/halo4guide '''Halo 4 Interactive Guide''']</ref>
The Covenant also perform extra-vehicular activity. [[Sangheili Ranger]]s use specialized vacuum-sealed armor to protect themselves from the effects of a vacuum environment, in order to plant [[antimatter charge]]s and support boarding parties.{{Ref/Reuse|for}}{{Ref/Reuse|h2}} [[Kig-Yar Ranger]]s in vacuum suits were also used, though their suits were more easily damaged than a Sangheili suit as they were built for external maintenance and lacked personal [[energy shielding]].<ref>'''[[Halo: Contact Harvest]]''', ''pages 124-125''</ref><ref>'''[[Halo Wars: Genesis]]'''</ref> Sangheili, Kig-Yar, and [[Unggoy Ranger]]s were employed by [[Jul 'Mdama]]'s [[Jul 'Mdama's Covenant faction|reformed Covenant faction]] for extra-vehicular activity purposes.<ref name="H4 Interactive Guide">[http://www.halowaypoint.com/en-US/halo4guide '''Halo 4 Interactive Guide''']</ref>


==Gallery==
==Gallery==
<gallery>
<gallery>
File:Halo-A-Hero-Falls-Spacewoman.png|A non-combat vacuum suit in [[2558]].
File:EVAArmor.png|EVA armor used by Spartans.
File:EVAArmor.png|EVA armor used by Spartans.
File:VacMarinesFight.png|UNSC Marines engaged in EVA combat.
File:HWG MarineVacSuit.png|A [[UNSC Marine Corps|UNSC Marine]] during an EVA operation.
File:Jackal Rangers.jpg|[[Kig-Yar Ranger]]s fighting in a vacuum.
File:HWG VacMarinesFight.png|UNSC Marines engaged in EVA combat.
File:HWG JackalRangers.png|[[Kig-Yar Ranger]]s fighting in a vacuum.
</gallery>
</gallery>


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*''[[Halo Wars]]''
*''[[Halo Wars]]''
*''[[Halo: Legends]]''
*''[[Halo: Legends]]''
**''[[The Package]]''
**''[[The Package (animated short)|The Package]]''
*''[[Halo: Reach]]''
*''[[Halo: Reach]]''
*''[[Halo: Fall of Reach]]''
*''[[Halo: Fall of Reach]]''
**''[[Halo: Fall of Reach - Invasion|Invasion]]''
**''[[Halo: Fall of Reach - Invasion|Invasion]]''
*''[[Halo: Combat Evolved Anniversary]]''
**''[[Terminal (Halo: Combat Evolved Anniversary)|Terminals]]''
*''[[Halo 4]]''
*''[[Halo 4]]''
*''[[Halo: Initiation]]''
*''[[Halo: Initiation]]''
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*''[[Halo: Mortal Dictata]]''
*''[[Halo: Mortal Dictata]]''
*''[[Halo 2: Anniversary]]''
*''[[Halo 2: Anniversary]]''
*''[[Halo 5: Guardians A Hero Falls trailer|A Hero Falls]]''
*''[[Hunt the Truth]]''
**''[[Halo 5: Guardians A Hero Falls trailer|A Hero Falls]]''
*''[[Halo 5: Guardians]]''
*''[[Halo 5: Guardians]]''
*''[[Halo Mythos]]''
*''[[Halo: Fractures]]''
**''[[Lessons Learned]]''
*''[[Halo: Retribution]]''
*''[[Halo: Bad Blood]]''
*''[[Halo: Fireteam Raven]]''
*''[[Halo: Silent Storm]]''
*''[[Halo Infinite]]''


==Sources==
==Sources==
<references/>
{{Ref/Sources}}


[[Category:Military Terminology]]
[[Category:Military terminology]]
[[Category: Terms and Phrases]]
[[Category:Terms and phrases]]
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