: a region at the center of a galaxy that produces an extremely large amount of radiation
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The leading candidates included massive galaxies, quasars powered by black holes, and small, low-mass galaxies.—Sharmila Kuthunur, Space.com, 19 June 2025 As such, quasars are among the most powerful beacons astronomers can use to probe distant regions of the universe.—Lee Billings, Scientific American, 18 June 2025 Related article Largest celestial object of its kind discovered in the distant universe
Highly dynamic, luminous quasars are rare, according to NASA.—Kameryn Griesser, CNN Money, 23 May 2025 The new findings describe a galactic battle between the galaxy on the right in the image above, which hosts an actively feeding black hole, a quasar, at its center, and its neighbor on the left, which is being bombarded by intense radiation that disrupts its ability to form new stars.—Sharmila Kuthunur, Space.com, 24 May 2025 See All Example Sentences for quasar
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