News of the WeekAstronomy

Giant Black Holes Shed Their Dusty Veils

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Science  11 Jun 2004:
Vol. 304, Issue 5677, pp. 1581
DOI: 10.1126/science.304.5677.1581a

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Summary

Astronomers have deduced that fiercely energetic glowing cores of distant galaxies--beacons of energy powered by black holes more massive than a billion stars--may be four or five times more numerous than had been recognized.