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Bookmark or Share- What Is a Quasar? The Once-Mysterious Cosmic Object, ExplainedFound at the heart of large, ancient galaxies, quasars are supermassive black holes that are so luminous they outshine the sun by as much as 27 trillion times.
- What is a quasar? - EarthSkyQuasars are extremely bright and distant objects powered by supermassive black holes in young galaxies. Learn how quasars are formed, how they emit radiation across the spectrum, and how they...
- Ancient, lonely quasars “sitting in the middle of nowhere” leave ...That quasars have been found in the first few hundred million years after the Big Bang – when the universe was only a few percent of its current age – has long confounded astronomers.
- Hubble Quasars - Science@NASAA Hubble Space Telescope photograph of a pair of quasars that existed when the universe was just 3 billion years old. They are embedded inside a pair of colliding galaxies. The quasars are separated by less than the size of a single galaxy.
- Quasar | Discovery, Structure & Evolution | BritannicaQuasars are extremely bright and distant objects powered by supermassive black holes in the centres of some galaxies. Learn how quasars were first observed, how they produce their radiation, and how they vary over time.
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