View source for Gravity anchor

{{Status|Canon}}
[[File:HW2-Banished ejected.png|thumb|300px|Through manipulation of Installation 09's gravity anchors, Ellen Anders was able to eject a section of the ring into space.]]
{{Quote|I've gained control of the Halo's gravity anchors, [[James Cutter|Captain]]. Get our troops clear and get ready.|Ellen Anders to James Cutter{{Ref/Level|Id=The Foundry|HW2|HW2:Last Stand|Last Stand}}}}
'''Gravity anchors''' are [[Forerunner]] technology designed to use [[Gravitics]] for the manipulation of large amounts of mass. In general operation, they are most notably used to keep the inner surface of a [[Halo Array|Halo installation]] (and presumably other [[Astroengineering|megastructures]] such as [[shield world]]s) secured to its superstructure.{{Ref/Level|Id=The Halo|HW2|HW2:The Halo|The Halo}} 

==History==
During the long periods of silence following [[Great Purification|the firing of]] the Halo Array at the end of the [[Forerunner-Flood war]], [[343 Guilty Spark]] staved off his boredom by using [[Installation 04]]'s gravity anchors to eject sections of terrain from the ring and reshape them at will. Spark hoped to use these experiments to investigate how biological life on the sections of terrain would be affected by exposure to the vacuum of space - something interrupted by the arrival of an [[unidentified alien vessel]].{{Ref/Game|HCEA|CEA:Terminals|Terminal 4}}

During the [[War of Beginnings]], gravity anchors uncovered on [[Sanghelios]] were used by [[Pelahsar the Strident]] to defend [[Vadam Keep]] during the [[Battle of Sanghelios]]. During the battle, the [[San'Shyuum]] [[Reformists|Reformist]]-held {{Class|Supernal Spiral|keyship}} ''[[Anodyne Spirit]]'' was used to besiege Vadam, before being trapped and brought down by hidden gravity anchors on the planet. This act was extremely controversial among the Sangheili, as it represented the use and exploitation of Forerunner technology that they had originally objected to when originally faced with San'Shyuum first contact at [[Ulgethon]].{{Ref/Book|Enc22|Page=191}}{{Ref/Book|Enc22|Page=259}}

In [[2559#April|April 2559]],{{Ref/Game|HW2|Phoenix Logs|Detail=Beyond the Edge}} Professor [[Ellen Anders]] managed to gain control over [[Installation 09]]'s [[Gravity well (physics)|gravity]] anchors from the ring's [[control room]] and manipulate them to eject a section of the ring's landmass occupied by [[Banished]] forces into space.{{Ref/Reuse|The Halo}}

==Gallery==
<gallery>
File:HCEA-Terminal-AtmoEjection.jpg|343 Guilty Spark's tampering with Installation 04's terrain via gravity anchor manipulation.
</gallery>

==List of appearances==
*''[[Halo: Combat Evolved Anniversary]]''
**''[[CEA:Terminals|Terminals]]'' {{Im}}
*''[[Halo Wars 2]]'' {{1st}}

==Sources==
{{Ref/Sources}}
{{Forerunner|array}}
[[Category:Gravity technology]]
[[Category:Forerunner technology]]
__NOTOC__