Quasars (also known as a quasi-stellar object abbreviated QSO). They are extremely luminous active glastic nucleus. They shin so brightly that they eclipse the ancient galaxies that contain them, quasars are distant objects powered by black holes a billion times as massive as our sun... . Astronomers called them "quasi-stellar radio sources," or "quasars," because the signals came from one place, like a star. They are visible from huge distance, being the most known luminous object in the universe.In 1963 Maarten Schmidt discovered QUASARS.A quasar is formed when a super massive black hole at the center of a galaxy has enough material around it to fall into the accretion disc to generate the energy to power it. We can't see any as they are today because they aren't nearby. Quasars are a type of Active Galactic Nucleus(AGN), which means we won't find any within our local few million light-years. ... Furthermore, the closest quasar we observe is only 600 million light years away.
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