View source for Extra-vehicular activity

===Human 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/Film|HLeg|Story=The Package (animated short)}}

The pilot variant of the [[UNSC Marine Corps Battle Dress Uniform]] was generally equipped with extra-vehicular activity integration for any exoatmospheric operations.{{Ref/Book|Enc11|Page=57}} 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/Game|H3|[[EVA-class Mjolnir#Halo 3|armor permutation description]]|Quote=The Mjolnir/V variant was developed and tested at UNSC facilities in Lister, Aigburth on Ganymede, integrating feedback gathered from the Summa Deep Space Incident.}}

[[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 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/Level|Id=h2|H2|H2:Cairo Station|Cairo Station}}

By [[2554]], extensive EVA training was common for all Spartans.{{Ref/Anthology|HFra|Story=Lessons Learned}}