Since their discovery, the nature of quasars has been one of the most

intriguing and baffling problems as evidenced by the following quotations: "

the problem of understanding quasi-stellar objects… is one of the most

important and fascinating tasks in all physics" - G.Burbidge and Hoyle. "The

quasar continues to rank both as one of the most baffling objects in the

universe and one most capable of inspiring heated argument" - Morrison. "The

redshift problem is one of the most critical problems in astronomy today" -

G. Burbidge. "Quasars still remain the profoundest mystery in the heavens" -

Hazard and Mitton.

The conventional interpretation of the spectral lines observed in quasars is

based on the redshift hypothesis. Three hypotheses have been advanced to

account for the supposed redshifts: 1. Cosmological hypothesis; the redshifts

are due to the expansion of the universe, 2. Gravitational hypothesis, 3

Local-Doppler......

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Title: Quasars
Approximate Word Count: 1909
Approximate Pages: 8 (250 words per double-spaced page)

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