Terrestrial Planets

== Terrestrial worlds ==
Terrestrial worlds are planets that basically have a surface where a person can stand on. The word "terrestrial" basically just mean "Earth-like". There are four types of terrestrial worlds in SpaceEngine and possibly also the real universe, and these are rocky worlds, ice worlds, carbon-rich worlds and iron-rich worlds (terra, aquaria, carbonia and ferria in SE terminology).
=== Type 1: Rocky worlds (terra or terrae in SE) ===
These worlds have a composition made up of mostly silicate rock, with an iron-rich core at their center. They are probably the second most common type of world in SpaceEngine. There are many examples of terrestrial worlds in our Solar System and include Earth, Venus, Mars and Jupiter's moon Io. Terras are the most common type of planets with terrestrial and marine organic life 
Main article: Terrae 
===Type 2: Ice or water worlds (aquaria in SE)===
These worlds have a composition of mostly volatile material, also known as "ices" in SpaceEngine. These type of worlds are probably the most common type of terrestrial world in SpaceEngine. This includes the compounds of water, ammonia and methane. Examples of ice worlds in our Solar System include the major moons of Saturn. 
Main article: Aquaria
===Type 3: Iron worlds (ferria in SE)===
These worlds contains more iron or nickel in its core, it requires above 50% of the planets composition. Our Solar System's first planet Mercury is a good example. They are probably the third most common type of world in SpaceEngine.
Main article: Ferria
===Type 4: Carbon worlds (Carbonia in SE)===
These worlds have a composition of mostly volatile material like carbides, also CO and methane. In Space Engine, carbon planets are the rarest type of planet.
Main article: Carbonia
== See Also ==
Rogue planets
New Planet Classification
Category:Planets
Category:Planet Types
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