Earth-like planet
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Earth-like planet is used as a synonym for one 0r more of the following:
- Earth analog: another world that is very similar to Earth in size, make up, and distance from its star.
- Earth-size planet: meaning, it is not a gas giant.
- Terrestrial planet: a planet made of the same materials as Earth, i.e., primarily of silicate rocks and an iron core. Terrestrial planets are often contrasted with gas giants.