スーパーアース

ス

ー

パ

ー

ア

ー

ス

Meanings

1

noun

super-Earth

astronomy›

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.

ケプラー宇う宙ちゅう望ぼう遠えん鏡きょうは多おお

く

の

スーパーアース

を

発はっ

見けん

し

た

。

The Kepler space telescope discovered many super-Earths.

Built from

スーパー+アース

Written forms

スーパー・アース
- スーパーアース
  Variant with interpunct; less common but seen in some sources.
- スーパー・アース

Etymology

Borrowed from English 'super-Earth', a term coined in astronomy for exoplanets more massive than Earth but less massive than ice giants.