EntityQ15129745· pop 17· linked from 1,076 articles

sub-Earth

thumb|300px|Comparing the size of Earth, [[Mars, and exoplanets of Kepler-20 and Kepler-42]]

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thumb|300px|Comparing the size of Earth, [[Mars, and exoplanets of Kepler-20 and Kepler-42]]

A sub-Earth is a planet "substantially less massive" than Earth and Venus. In the Solar System, this category includes Mercury and Mars.

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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).