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Scientists discover two black holes inside a star cluster
Wednesday, October 3, 2012 18:37
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By Agence France-Presse
Wednesday, October 3, 2012
Astronomers said Wednesday they had found evidence of something they never expected to see — two black holes lurking inside a 12-billion-year-old cluster of tightly-packed stars in our Milky Way galaxy.
The international team was taken by surprise when noting what appeared to be two black holes, each about 10 to 20 times more massive than our Sun, near the core of a star cluster named Messier 22 (M22), they wrote in Nature.
The finding challenges much of the accepted science on globular star clusters, which are about 10 billion years old on average and contain around a million stars.
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