The Loneliest Black Holes in the Universe

Actively growing supermassive black holes in centers of galaxies are common even in cosmic voids, the most rarefied and empty regions of the universe.

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<p><a href="http://www.physorg.com/news100191930.html">The Loneliest Black Holes in the Universe</a></p> <p>Actively growing supermassive black holes in centers of galaxies are common even in cosmic voids, the most rarefied and empty regions of the universe.</p>