Quiz on 🌌 “Quasars” — extremely luminous active galactic nuclei powered by supermassive black holes.

A quasar is an extremely bright and distant active galactic nucleus powered by a supermassive black hole at the center of a galaxy. As matter falls into the black hole, it forms an accretion disk that heats up due to friction and gravitational forces, emitting enormous amounts of light and energy across the electromagnetic spectrum, including visible, ultraviolet, and X-ray radiation. Quasars are among the most luminous objects in the universe, often outshining their entire host galaxies. They are usually found at great distances, making them important for studying the early universe. The first quasar, 3C 273, was identified in 1963. Studying quasars helps astronomers understand galaxy evolution, black hole growth, and the large-scale structure of the cosmos.