In 1963 astronomers were astounded to discover that certain faint, star-like objects have very large redshifts . To be visible at such extreme distances of billions of light years, they must emit tremendous amounts of energy. In the most widely accepted model, a quasar is the bright nucleus of an active galaxy powered by a central, supermassive black hole . In fact, the galaxy and quasar seem to be colliding or merging. This and other recent HST observations suggest that astronomers' standard ideas about quasars may be wrong.
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