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- Quasar - Wikipedia
The radiant energy of quasars is enormous; the most powerful quasars have luminosities thousands of times greater than that of a galaxy such as the Milky Way [2][3] Quasars are usually categorized as a subclass of the more general category of AGN
- Hubble Quasars - NASA Science
Quasars are distant galaxies whose incredibly bright cores are powered by supermassive black holes
- Quasars: Brightest Objects in the Universe
Quasars are the blazing centers of active galaxies We take a look at how they form and why they're the brightest objects in the universe
- Quasar – Definition, Formation, Facts in Astronomy
Learn what a quasar is in astronomy, how it forms, types of quasars, and what they tell us about the early universe
- Quasar | Discovery, Structure Evolution | Britannica
The tremendous light generated by quasars and their great distance from Earth work to obscure the fainter galactic structures in which they are embedded This quasar is apparently fueled by a collision between its host galaxy and a dwarf galaxy
- Quasar - ESA Hubble
Quasars are a subclass of active galactic nuclei (AGNs), extremely luminous galactic cores where gas and dust falling into a supermassive black hole emit electromagnetic radiation across the entire electromagnetic spectrum
- What is a quasar? - EarthSky
Bottom line: Quasars are extremely bright and extremely distant objects Their huge energy output is thought to be due to activity around the central supermassive black hole in young galaxies
- Quasars – National Radio Astronomy Observatory
Quasars are cores of galaxies where a supermassive black hole is messily feeding Orbiting gas and dust whip around the black hole with such ferocity that they give off light in all wavelengths
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