Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Though they are cooler than the sun, red dwarfs are known to experience violent outbursts of ultraviolet and X-ray radiation in their initial days.
Source: https://thefrontierpost.com/astronomers-find-two-exoplanets-larger-than-earth/