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Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
A jointly funded satellite built by the NRO, called SilentBarker, is scheduled to launch later this year on a United Launch Alliance Atlas 5 rocket.
Source: https://spacenews.com/keeping-watch-on-aggressor-satellites-a-key-challenge-for-u-s-space-force/