noun which may take the genitive case particle 'no', noun
extraterrestrial; outside Earth
Used as a noun or no-adjective to describe things beyond Earth, such as life, objects, or space.
The existence of extraterrestrial life has not yet been confirmed.
Plans to explore planets outside Earth are underway.
地球外生命 is a common compound meaning 'extraterrestrial life', using 地球外 as a prefix.
Compound of 地球 (Earth) and 外 (outside).