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What is a quasar?

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A quasar is an extremely luminous and energetic active galactic nucleus powered by a supermassive black hole at the center of a galaxy. They emit massive amounts of energy, including visible light, radio waves, X-rays, and gamma rays, making them some of the brightest objects in the universe.
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A quasar is a celestial object that is extremely luminous and energetic. It is powered by a supermassive black hole at the center of a galaxy, which emits intense radiation as it consumes surrounding gas and dust. Quasars are among the brightest and most distant objects in the universe.

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