Editing Slipspace portal

{{Era|Forerunner|HCW|Post}}

[[File:SlipspacePortal intro.jpg|right|thumb|300px|A slipspace portal generator on an unknown world.]]

Large constructs, such as the [[Halo Array|Halo installations]], could be transported across interstellar distances through the use of portals. The transition of such a large object would slow down other slipspace traffic in the entire [[Milky Way|galaxy]] due to the buildup of an effect known as [[reconciliation]].<ref>'''Halo: Cryptum''', ''page 104''</ref> While designed for large-scale transit, portals have a limited transit capacity and can be strained or even destroyed if this capacity is exceeded.<ref>'''Halo: Cryptum''', ''pages 313-314''</ref> Portals also have a system that filters unnecessary objects such as debris, discarding them into the volume of slipspace.<ref>'''Halo: Cryptum''', ''page 323''</ref> While passage through a portal is remarkably faster than an ordinary slipspace jump, portal transit is not instantaneous; for example, the passage from the Earth portal to [[Installation 00|the Ark]] took over three weeks.<ref>[http://halo.xbox.com/en-us/intel/featured/video/herofortitude/bfe5038b-314a-4f17-a6be-f7613e0e3788 '''Halo Waypoint''', ''Hero-Fortitude'']</ref>

Portals may be generated by groundside facilities which vary in overall architecture but are typically enormous,<ref name="noon"/> or generator systems situated in space.<ref name="c312"/><ref name="MB portal">'''Halo: Silentium''', ''page 308''</ref> Portals generated within an atmosphere are often accompanied by [[Portal storm|severe weather disturbances]].<ref name="noon"/><ref name="h3"/> Dedicated [[ancilla]]s were often tasked with maintaining portals. Certain portals are designed to activate only when a specific code sequence is transmitted or a device, such as the [[Conduit]], is inserted into [[unidentified Forerunner machine|a machine]] capable of generating such portals.<ref name="MB portal"/><ref name="opc">'''[[Halo: Spartan Strike]]''', ''[[Operation C: Valiant Hammer]]''</ref><ref name="opd">'''[[Halo: Spartan Strike]]''', ''[[Operation D: Adamantine Shield]]''</ref> Others, such as the [[Portal at Voi|one on Earth]], require a [[keyship]] to function.<ref name="h3"/> Halo Installations are capable of generating slipspace portals if necessary to reach a destination.<ref name="P343">'''Halo: Primordium''', ''pages 343-346''</ref><ref name="HW2">'''[[Halo Wars 2]]'''</ref>

The Forerunners had a network of portals that allowed fast passage throughout their [[ecumene]]. Some systems, including that of the [[capital]], had portal installations that connected to multiple worlds.<ref name="c312"/> The [[Librarian]] used an array of portals to travel to the worlds where she collected the various species of the galaxy for indexing at [[Installation 00|the Ark]]. The same network was used to transport the Halo rings.<ref>'''Halo: Cryptum''', ''page 310''</ref> The portals in this network could only be activated by a special type of vessel, known as a [[keyship]],<ref>[https://halo.xbox.com/en-us/news/headline/the-halo-bulletin-11911-/290676 '''Halo Waypoint''': ''The Halo Bulletin: 11/9/11'']</ref> most of which were eventually destroyed by the Librarian in order to prevent the [[Flood]] from reaching the Ark.<ref>'''Halo 3''', ''[[Terminal (Halo 3)#Terminal Four|Terminal 4]]''</ref> The [[The Portal|generator device]] for one of the Librarian's portals was buried near the town of [[Voi]] on [[Earth]], and was later activated by the Covenant, who were in possession of the last known remaining keyship, known as the [[Forerunner Dreadnought]].<ref name="h3"/> [[Faber]], the [[Master Builder]], had a secret private portal constructed allowing transit from the vicinity of the [[greater Ark]] to [[Installation 00]]. This portal could only be activated by inserting a specific code known only to the Master Builder. Transit through the portal was also distinctly more comfortable than in most normal slipspace portals due to the Master Builder's wealth and power.<ref name="MB portal"/>  

Though the Librarian's portal network was utilized to transport the Halo rings, the rings themselves are capable of generating portals for transport if necessary. After [[Installation 07]]'s near-collision with the [[wolf-faced planet]], the [[IsoDidact]] had the installation, boosted by power from [[Forerunner dreadnought]]s, generate a limited portal to travel to the [[greater Ark]] for repairs, but the limited power and severe damage meant that the installation had to shed 20,000 kilometers of its mass to make it through.<ref name="P343" /> Similarly, [[Installation 09]] was able to open a portal for its transit to the [[Soell system]] when it was launched in [[2559]].<ref name="HW2"/>

Several of the structures on [[Sarcophagus]] contained slipspace portals not just to other parts of the [[shield world]], but to other planets entirely<ref>'''[[Halo: The Thursday War]]''', ''page 409''</ref> including [[Hesduros]] in an entirely different star system<ref name="TW398">'''[[Halo: The Thursday War]]''', ''page 398''</ref> and [[Mackintosh]] which was not only within the [[Zeta Doradus system]], but fell into orbit of Sarcophagus when the shield world was removed from its [[slipspace bubble]].<ref name="L404">'''[[Halo: Legacy of Onyx]]''', ''page 404''</ref> These two portals were used by [[Jul 'Mdama]] to escape and the [[Servants of the Abiding Truth]] to travel to Mackintosh respectively.<ref name="TW398" /><ref name="L404" />

*''[[Halo: Primordium]]

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