Cosmology
Blazars are a type of active galactic nucleus (AGN) characterized by their intense brightness and highly variable emissions across the electromagnetic spectrum, including radio, optical, and gamma-ray wavelengths. They are believed to be powered by supermassive black holes at the centers of galaxies, where jets of charged particles are accelerated close to the speed of light, resulting in extreme luminosity. This phenomenon makes blazars one of the most energetic and intriguing objects in the universe.
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