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.
That also applies to the radio waves the EHT Collaboration uses to construct their views of the object.
Source: https://gizmodo.com/m87-black-hole-jet-image-event-horizon-telescope-1850376340