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• 21:16, 25 January 2026 DanteWashere talk contribs created page Quasar (Created page with "'''Quasar''' is a highly luminous active galactic nucleus powered by accretion onto a supermassive black hole. It is characterized by strong electromagnetic emission across a broad range of wavelengths. Quasars are discussed in extragalactic astronomy, astrophysics, and cosmology. == Status == Quasars are observed at large cosmological distances and are used to study early galaxy formation and large-scale structure. Models of their energy production and evolution conti...")