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Q - Factary




Picture of a QuasarThis word is an abbreviation of 'quasi-stellar radio source' or 'quasi-stellar object'. They were called 'quasi-stellar' because when they were first observed they appeared as point-like sources of radiation, but they clearly were not stars. They are now considered to be a special class of galaxy in which the centre of the galaxy contains a huge black hole. Quasars radiate extraordinary power at many wavelengths (approximately 100,000 times that of our own galaxy the Milky Way).


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