Topical Terminology > Terrestrial Planets
Terrestrial planets
For Terrestrial planets we have terms and definitions in 2 topics. The topics are Astronomy and Science.
Terrestrial Planets (Astronomy) 
A type of planet characterized by having a rocky core, and by being small and close to the Sun. Mercury, Venus, Earth and Mars are terrestrial planets.
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Terrestrial Planets (Science)
Mercury, Venus, Earth, and Mars -- the innermost planets that are rocky, dense, relatively small, and deficient or lacking in satellites and ring systems.
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