: a region at the center of a galaxy that produces an extremely large amount of radiation
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Measurements of distances to quasars based on radio-interferometric techniques, for instance, are advancing, and there are prospects for using fluctuations in galaxy-surface brightness.—Marc Kamionkowski, Scientific American, 15 Oct. 2024 Or at least a lot like quasars from more recent periods in the Universe's history.—John Timmer, Ars Technica, 17 June 2024 Once activated, they are called active galactic nuclei, AGN, or quasars.—Giuseppina Fabbiano, Discover Magazine, 31 May 2024 Having the tools to shore up your scripts — a better understanding of the nature of quasars, or the wave-particle duality of matter and light — is surely no bad thing.—Remy Blumenfeld, The Hollywood Reporter, 18 May 2024 See all Example Sentences for quasar
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