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Quasars and Their Host Galaxies

Quasars and Their Host Galaxies


Copyright: John Bahcall (Institute for Advanced Study, Princeton) Mike Disney (University of Wales) and NASA

Quasars reside in a variety of galaxies, from normal to highly disturbed. When seen through ground-based telescopes, these compact, enigmatic light sources resemble stars, yet they are billions of light-years away and several hundred billion times brighter than normal stars.
Last Update: 1 September 2019
25-Oct-2021 00:17 UT

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