Common · Knowledge
Sub-Earth
Planet significantly less massive than Earth or Venus
A sub-Earth is a planet "substantially less massive" than Earth and Venus. In the Solar System, this category includes Mercury and Mars.
From Wikipedia
A sub-Earth is a planet "substantially less massive" than Earth and Venus. In the Solar System, this category includes Mercury and Mars.
Text: Wikipédia, CC BY-SA 4.0. · Image: Image credit: NASA/JPL-Caltech (Public domain) ·
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