Quasars and Active Galactic Nuclei

Quasars and Active Galactic Nuclei (AGN) are extremely bright and energetic centers of distant galaxies. They are powered by supermassive black holes that consume surrounding gas and dust, releasing enormous amounts of radiation across the electromagnetic spectrum. Quasars are a specific type of AGN visible at great distances, often surpassing the light of all the stars in their host galaxy. Their brightness makes them valuable for studying the early universe. Overall, AGN and quasars provide insight into galaxy evolution and the role of black holes in cosmic structures.