IPA: /ˌæstrəʊbaɪˈɒlədʒɪst/
KK: /ˌæstroʊbaɪˈɑːlədʒɪst/
A scientist who studies the possibility of life in outer space and the conditions that might support it.
The astrobiologist discovered new evidence that suggests life could exist on Mars.
Astrobiologist → It is formed from "astro-" (from Greek "astron", meaning star) and "biologist" (from Greek "bios", meaning life, and "logia", meaning study). The word refers to a scientist who studies the possibility of life in the universe, particularly in relation to stars and planets.
Think of 'stars' ('astro-') and 'life' ('bios') to remember that an astrobiologist studies life in relation to the stars.