News of the WeekAstronomy

Result Rattles Dark-Matter Machismo

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Science  21 Jul 2006:
Vol. 313, Issue 5785, pp. 287
DOI: 10.1126/science.313.5785.287

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A new analysis suggests that massive compact halo objects--possibly ancient, burnt-out dwarf stars about half as massive as the sun--may not exist in substantial enough numbers to account for any of the galaxy's unseen mass, as had been posited in 2000. (Read more.)