Editing Planet

{{Status|Canon}}
{{Wikipedia}}
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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==
===Physical===
*'''[[Wikipedia:Gas giant|Gas giant]]''' - Planets predominately composed of gases.<ref name="solsystem">''[[Halo Encyclopedia (2009 edition)]]'', 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}}
*'''[[Wikipedia:Ice giant|Ice giant]]''' - Ice giants are types of planets that are similar to gas giants. [[Substance]] and [[Haakuth]] are examples.{{Ref/Book|Enc22|Page=346}}{{Ref/Book|Enc22|Page=349}}
*'''Ice world''' - Ice worlds are extremely cold, frigid. Snow and ice are common features. [[Kamchatka]], [[Zehar VI]], [[Strilun IV]], and [[Balaho]] are examples.{{Ref/Book|Enc22|Page=359}}{{Ref/Book|Enc22|Page=209}}
*'''Ocean world''' - Ocean worlds have large bodies of water on them. [[Terceira]], [[Reme]], and [[Beta Gabriel]] are examples.{{Ref/Book|Enc22|Page=47}}{{Ref/Book|Enc22|Page=214}}{{Ref/Site|URL=https://www.halowaypoint.com/en-us/news/canon-fodder-rhine-installation|Site=Halo Waypoint|Page=Canon Fodder - Rhine Installation|D=23|M=9|Y=2020}}
*'''Jungle world''' - Jungle worlds are largely composed of jungle environments. [[Actium]] was an example.{{Ref/Reuse|enc22pg49}}
*'''Desert world''' - A desert world is a planet primarily composed of deserts. The [[human colony]] of [[Carrow]] is an example.{{Ref/Book|Id=enc22pg49|Enc22|Page=49}}
*'''[[Shield world]]''' - A series of artificial planets created by the [[Forerunner]]s. [[Requiem]], [[Onyx]], and [[Genesis]] are examples.
<gallery class=center>
File:HCE-ThresholdGasGiant.png|[[Threshold]], a gas giant.
File:H4-Concept-Requiem-Entrance.jpg|[[Requiem]], Shield 0001.
File:Enc22 Carrow.jpg|Carrow, a desert world.
File:Enc22-Kamchatka.png|Kamchatka, an ice world.
File:H2A - DeltaHalo.jpg|Substance, an ice giant.
</gallery>
===Geopolitical===
{{Main|Human colonies|Covenant worlds}}
*'''[[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>
*'''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]].
*'''[[Reliquary]]''' - A world designated by the [[Covenant]] as having a large amount of Forerunner artifacts.<ref>''[[Halo: Contact Harvest]]'', p. 224</ref>
<gallery class=center>
File:Waypoint - Janjur Qom.png|[[Janjur Qom]], cradle world of the [[San'Shyuum]].
File:Harvest pre-glassing.png|[[Harvest]], an agriculture world.
</gallery>
==Sources==
{{Ref/Sources}}

[[Category:Planets]]