Astronomy: How Near the Quasar?

Are quasi-stellar sources, or quasars, the most distant objects ever seen by man, occupying the outer limits of the universe itself? Or are the quasars relatively close by, perhaps even neigh bors of the earth's own Milky Way galaxy? These questions have divided scientists into warring camps and brought near chaos to the once orderly world of astronomy. To confuse the issue further, a staunch advocate of the distant-quasar theory has now weakened his own case by finding evidence suggesting that one quasar is closer to earth than most nearby galaxies.

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