noun
super-Earth
An exoplanet with a mass higher than Earth's but substantially below that of the Solar System's ice giants. Used in astronomy and science communication.
ケプラー宇宙望遠鏡は多くのスーパーアースを発見した。
The Kepler space telescope discovered many super-Earths.
Variant with interpunct; less common but seen in some sources.
Borrowed from English 'super-Earth', a term coined in astronomy for exoplanets more massive than Earth but less massive than ice giants.