Changes

'''Quasar''' is an abbreviation of "quasi-stellar object". Quasars are unusually energetic objects which emit up to 1,000 times as much energy as an entire galaxy, but from a volume about the size of our [[solar system]].

A '''Quasar''' (abbreviation for of "quasi-stellar radio source") is an unusually energetic object representing the active nucleus of ancient galaxies. Quasars can emit up to 1,000 times as much energy as a normal galaxy, but from a volume about the size of our [[solar system]]. This energy is thought to be the result of superheated material forming an [[accretion disk]] around a supermassive [[black hole]].

[[Category:Astronomy]]

[[Category:Astronomy]]