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Black Holes

14 July 2011

At www.physorg.com/print229767192.html there is some speculation about the origin of black holes. They were not formed by mergers between galaxies as hypothesised elsewhere, it says. They are mostly found in massive galaxies with lots of dark matter, it is alleged, and continues by saying they are absent in galaxies of moderate mass. The information is derived from space telescopes and cameras and is published in the Astrophysical Journal and represents an attempt to explain why some galaxies have extremely bright features, evidence of activity, and others are less bright. The black hole itself remains hypothetical.

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