Editing Planet

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[[File:HaloPlanets.jpg|thumb|300px|Planets, moons and other celestial objects in comparison to one another.]]

'''Planets''' are celestial objects in the [[Milky Way]] galaxy. They are found in systems orbiting stars. Planets themselves are sometimes orbited by both [[natural satellite]]s and artificial [[space station]]s. [[City|Cities]] are also often built on planetary surfaces.

==Overview==
===Terraforming===
{{Main|Terraforming}}
Terraforming is a series of processes to make planets suitable for habitation.{{Ref/Novel|Novel=Halo: Ghosts of Onyx}} It can take several centuries to fully terraform an Earth-sized planet, depending on what is needed.<ref>''[[Halo: Reach]]'', [[Data pads|Data pad 14]]</ref> Humans first began terraforming around the 22nd-century in the Sol system.<ref>''[[Halo Encyclopedia (2009 edition)]]'', p. 42 (2011)</ref> The [[Covenant]] can terraform worlds solely to produce [[plasma]].<ref>''[[Halo: Escalation]]'', Issues 1-2</ref> The [[Flood]] could also terraform, by altering the atmosphere of worlds they touched.{{Ref/Level|Game=Halo: Combat Evolved|Level=The Library|Quote=Your environment suit will serve you well when the Flood begin to alter the atmosphere - you are a good planner!}}

===Slipspace affects===
{{Main|Slipstream space}}
Planets can generate enough of a gravitational force that it can affect the superfine quantum filaments that are needed for slipspace drives; something UNSC calculations couldn't figure out. Covenant drives, which originate from Forerunner drives aren't affected by this.<ref>''[[Halo: First Strike]]'', p. 85</ref>

==Types==
*'''Gas giant''' - Planets predominately composed of gases.<ref name="solsystem">''[[Halo Encyclopedia (2009 edition): The Definitive Guide to the Halo Universe]]'', The Sol System, p. 282-283 (2009)</ref>{{Ref/Site|D=01|M=6|Y=2020|URL=https://www.halowaypoint.com/en-us/universe/locations/threshold|Site=Halo Waypoint|Page=Universe - Threshold}} While the UNSC/UEG does not possess the ability to mine these worlds,{{Ref/Reuse|solsystem}} the Forerunners did.{{Ref/Site|Id=threshold|D=01|M=6|Y=2020|URL=https://www.halowaypoint.com/en-us/universe/locations/threshold-gas-mine|Site=Halo Waypoint|Page=Universe - Threshold Gas Mine}} Some of these gas giants were the anchor sites for [[Halo Array|Halo ring]]s.{{Ref/Site|D=01|M=6|Y=2020|URL=https://www.halowaypoint.com/en-us/universe/locations/delta-halo|Site=Halo Waypoint|Page=Universe - Delta Halo}}{{Ref/Reuse|threshold}}
<gallery>
File:HCE-ThresholdGasGiant.png|[[Threshold]]
File:Jupiter uprising.jpg|Covenant forces over the gas giant [[Jupiter]].
File:H2A - DeltaHalo.jpg|[[Delta Halo]] in orbit of the gas giant [[Substance]]
</gallery>
*'''Cradle world''' - Cradle worlds are the origin worlds of a species.{{Ref/Site|Id=sanghelios|D=01|M=6|Y=2020|URL=https://www.halowaypoint.com/en-us/universe/locations/sanghelios|Site=Halo Waypoint|Page=Universe - Sanghelios}}{{Ref/Site|D=01|M=6|Y=2020|URL=https://www.halowaypoint.com/en-us/universe/locations|Site=Halo Waypoint|Page=Universe - Locations}} This appears to be synonymous with the word homeworld.{{Ref/Site|Id=earth|D=01|M=6|Y=2020|URL=https://www.halowaypoint.com/en-us/universe/locations/earth|Site=Halo Waypoint|Page=Universe - Earth}}{{Ref/Site|D=01|M=6|Y=2020|URL=https://www.halowaypoint.com/en-us/universe/locations/janjur-qom|Site=Halo Waypoint|Page=Universe - Janjur Qom}} These planets are sometimes highly developed and play important governmental roles.{{Ref/Reuse|earth}}{{Ref/Reuse|sanghelios}}
:For a list of homeworlds, see [[:Category:Homeworlds|here]].
<gallery>
File:H4-Earth.jpg|[[Earth]], cradle world of [[Human]]ity.
File:Bloodline Sanghelios.png|[[Sanghelios]] and it's moons, cradle world of the [[Sangheili]].
File:Waypoint - Janjur Qom.png|[[Janjur Qom]], cradle world of the [[San'Shyuum]].
</gallery>

===By species===
====Human====
{{Main|Human colonies}}
*'''[[Agriculture world]]''' - A world that's used by the [[Unified Earth Government]] to produce food for Earth and other colonies.<ref>''Halo: Contact Harvest'', p. 76</ref>
<gallery>
File:Harvest pre-glassing.png|[[Harvest]], an agriculture world.
</gallery>

====Covenant====
*'''[[Sangheili colonies]]''' - Colony planets settled by Sangheili.
*'''[[Reliquary]]''' - A world designated by the [[Covenant]] as having a large amount of Forerunner artifacts.<ref>''[[Halo: Contact Harvest]]'', p. 224</ref>
*'''[[High Charity]]''' - The collective's capital and united homeworld, composed of rock from [[Janjur Qom]].

====Forerunner====
*'''[[Shield world]]''' - A series of artificial planets created by the [[Forerunner]]s.
<gallery>
File:H4-Concept-Requiem-Entrance.jpg|[[Requiem]], Shield 0001
File:HW TroveOrbit MattePainting.jpg|[[Trove]], Shield 0459
</gallery>

==Sources==
{{Ref/Sources}}

[[Category:Planets]]