Research on Genius Tour

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This word comes from the contraction of quasi and stellar.
A quasar is a celestial object which creates very powerfull radio waves and is located extremelly far away in the Universe. Today, we count about 20,000 ones, and the furthest is about at 13 billions light years from us.
Credit of the picture : NASA/STScl
See radiogalaxy

Related web site: http://http://