Ark

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Arks are massive Forerunner installations designed with the primary purpose of manufacturing Halo rings. Situated outside the Milky Way galaxy, they also served as Lifeworker research facilities, as well as conservational preserves for the numerous species of the galaxy during the Conservation Measure.^[1]^[2] The Arks were shaped like massive flowers, consisting of several curved arms, similar to the petals of a flower, surrounding a circular foundry in the center.^[3]

Two Arks existed during the Forerunner-Flood war; the greater Ark, which produced Halos 30,000 kilometers in diameter, and Installation 00 or the lesser Ark, which produced rings 10,000 kilometers in diameter.^[4]^[5]

List of appearances

Halo 2 Template:First mentioned
Halo 3 (First appearance)
Halo: Combat Evolved Anniversary (Terminals Only)
The Forerunner Saga
- Halo: Cryptum
- Halo: Primordium
Halo Graphic Novel
- Second Sunrise Over New Mombasa (Mentioned only)
Halo Legends
- Origins
- Homecoming

Sources

^ Halo: Cryptum page 274
^ Halo: Primordium page 372-373
^ Halo: Primordium page 371
^ Halo: Primordium page 343 ("...one of the two Arks that had created them in the first place.")
^ Halo: Primordium page 375 ("...neither of the Arks were manufacturing Halos...")

v • d • e

The Forerunners

v • d • e Halo Array

Arks	Greater Ark • Installation 00

Senescent array	Gyre 01 • Gyre 02 • Gyre 03 • Gyre 04 • Gyre 05 • Gyre 06 • Gyre 07 • Gyre 08 • Gyre 09 • Gyre 10 • Gyre 11 • Gyre 12

Neoteric array	Installation 01 • Installation 02 • Installation 03 • Installation 04 (Alpha Shard) • Installation 05 • Installation 06 • Installation 07 • Installation 08 • Installation 09

Other	Prototype Halo installation

v • d • e

Installation components

Archive • Auditorium • Barrier tower • Beacon tower • Cartographer • Charging column • Clarion • Composer's Abyss • Confidence-class weapon array • Conservatory • Conspectus network • Control room (Installation 03 • Installation 04 • Installation 05 • Installation 09) • Control Tower • The Core • Curative spines • Door interlock • Elevators • Flood containment facilities • Flood research facilities • Foundry • Fort • Garrison • Gravity anchor • Index chamber • Library • Lifesupport pod • Monitor • Phase pulse generator • Power Node • Reformation Spire • Relay station • Repository • Shrine defender • Skycrypt • Skydock • Spire of Healing • Secondary reactor • Supply elevator • Terminus • Weather spire

v • d • e Other installations

Shield worlds	Requiem / Shield 0001 • Sarcophagus / Shield 006 (Onyx) • Genesis / Shield 0111 (Gateway) • Trove / Shield 0459 • The Refuge / Shield 0673 • Bastion / Shield 0983 • Shield 10021 • Cloister

Maginot Line	Line installation (1-4 • 9-12 • 444-447)

Other megastructures	Clinquant • Maethrillian (Crown) • Orbital reformer (X-40 • X50) • Paradigm's Loom • Quarantine shield • Seed world

Other facilities	Arcadia ruins • Ariel complex • Coral complex • Deep-Space Anomaly#0198 • Edom Terminal\Juridical • Harvest relic • Invicta • Menachite complex • Meridian complex • Portal at Voi • Seclusion Spiral • Sharquoi hive • Site 17 • Site 22 • Temple of the Abiding Truth • Temple of the Sundered Sky • Ten Cities of Edification • Threshold gas mine

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Technology

AI suppressor • Ancilla • Anti-gravity gondola • Assembler vats • Astroengineering • Baffler • Combat skin ((War sphinx • Seeker)) • Confinement bubble • Confinement field • Constraint field • Console • Coordinate key • Dazzler • Design seed ((Upgrade seed)) • Durance ((Didact's Gift)) • Encephalon • Energy core • Engineering unit • Entanglement dish • Flarecore • Gas canister • Guardian • Hard light (Light bridge) • Grappler • Huragok • Interdiction web • Lifeworker beacon • Mind transfer • Modular Dispersal Technology • Observation pane • Personal armor • Power core • Relic core • Sharquoi • Slipspace bubble • Slipspace core (Flake) • Slipspace field pod • Slipspace translocation ((Personal slipspace unit • Teleporter • Teleportation grid • Slipspace portal)) • Smartmatter • State-shifter • Stasis field • Verivorr • Weapon rack • Z-9930 Terminal

v • d • e Ships

Civilian starships	Council ship (Seedling Star) • Builder ship • Mining ship • Audacity • Eden • Falco-class space pod • Gargantua-class transport • Keyship (Supernal Spiral-class • Anodyne Spirit) • Lifeworker terraforming vessel

Small craft and weapon-ships	Aethra • Despair-class fighter • Phaeton • Seeker • Tempo (Merganser-class) • War sphinx

Escorts	Escort (Twelfth-order escort • Dignity-class • Preservation-class) • Harrier (Acolyte-class • Strix-class)

Warships	Auxiliary • Dragoon (Sojourner-class • Skirr-class) • Picket cruiser • Fortress-class vessel (Deep Reverence • Long Reverence) • Cruiser • Interdictor • Raptor (Second-order fast frigate)

Battle stations	Aspis platform • Castellan • Mantle's Approach

Unknown type	Babd Catha vessel • Fast attack runner • Planet-breaker (Didact's ship) • Vigilant

v • d • e

Sentinels

Types

Aggressors	Eliminator • Aggressor Sentinel

Protectors	Ark variant • Trove variant

Strato-Sentinels	Assembler • Excavator • Extractor • Retriever • Steward

Miscellaneous	Onyx • Enforcer • Constructor • Controller • Regulator • Safeguard • Super • Promethean Watcher • Unidentified • Gatherer • Guardian • Monitor • Sub-monitor • Eradicator Sentinel

Armigers

Soldiers	Armsman • Bandit • Hydra

Snipers	Specialist

Officers	Enforcer • Guard • Operative

Related facilities

First-aid monitor • Protector plant • Sentinel manufacturing facility (Ferrarius Assembler Vats) • Sentinel launcher • Sentinel factory • Sentinel wall

v • d • e Weaponry

Infantry weapons	Z-110 Boltshot (Closed Fist • Open Hand) • Z-130 Suppressor (Song of Peace • Razor's Edge) • Z-180 Scattershot (Loathsome Thing • Didact's Signet) • Z-250 lightrifle (Barbed Lance • Dying Star) • Z-390 incineration cannon (River of Light • Heartseeker) • Z-750 binary rifle (Retina of the Mind's Eye • Twin Jewels of Maethrillian) • Unidentified weapon • Lightblade • Cindershot (Backdraft) • Hard light stave • Heatwave (Scatterbound) • Gravity wrench • Misericordia • Riftblade

Grenades	Z-040 pulse grenade • Z-400 splinter grenade

Mounted weapons	Forerunner turret • Z-510 focus turret • Z-520 splinter turret • Destructor beam • Enforcer missile launcher • Shard cannon • Sterilization beam (Focus beam • Sentinel beam (Arcane)) • Sentinel pulse

Battlefield equipment	Z-90 hardlight shield • Z-2500 autosentry • Z-4190 bubble shield (adapted) • Z-5080 Promethean vision • Autoturret

Ship-mounted and heavy weaponry	Anti-ship artillery system • Attenuation pulse emitter • Confidence-class weapon array • Converging beam cannon • Disruption generator • Glimmerlance • Heavy ion weapon system • Light mass fusillade cannon • Particle cannon (Z-8060 particle cannon) • Stasis tension driver • Torsion driver • Z-8250 (Heavy artillery • Light artillery) • Weapon-core

v • d • e Artifacts

Activation Index • Composer • Conduit • Cryptum • Deadbolt • Reach crystal • Deep-space artifact • Didact's Gift • Janus Key • Luminal Beacon • Luminary • Pori Meteor • Requiem communication artifact • Requiem slipspace artifacts • Sigma Octanus IV artifact • Sefom Invictus • Spine of the Gods • Terminals • Unidentified machine • Vertex • Wings of Malygus

List of appearances

Sources

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