Quasar

Meaning:

A quasar is an astronomical phenomenon characterized by its extremely luminous and energetic nature. The term "quasar" is an abbreviation for "quasi-stellar radio source," as these objects were initially identified as strong radio sources with a star-like appearance. Quasars are believed to be powered by supermassive black holes at the centers of distant galaxies. As matter falls into these black holes, intense radiation is emitted, making quasars among the brightest objects in the universe. They emit energy across the electromagnetic spectrum, from radio waves to X-rays. The study of quasars provides valuable insights into the early stages of the universe, as many quasars are located billions of light-years away, allowing astronomers to observe conditions in the cosmos during its formative epochs.