: a galaxy that is a powerful source of radio waves
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In the other giant radio galaxy, RAD J142004.0+621715 which has a 1.4-million-light-year-wide emission, one of the jets is also found to end in a large ring of radio emission.—Keith Cooper, Space.com, 14 Oct. 2025 It was previously classified as a radio galaxy, but the new research released in March has revealed otherwise.—Julia Musto, Fox News, 1 Apr. 2023 The galaxy, which is named Alcyoneus, is a giant radio galaxy.—Joshua Hawkins, BGR, 19 Feb. 2022 MeerKAT is already trying to find similarly gargantuan filaments in other radio galaxies.—Robin George Andrews, Scientific American, 16 Apr. 2020
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