Astronomers: Rare trio of supermassive black holes discovered

June 26, 2014 12:37 AM

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An international team of astronomers, including several at Oxford University, contend that the finding of a rare black hole trio in a galaxy more than four billion light years away could help them in the hunt for the “ripples in spacetime” predicted by Albert Einstein.

The astronomers investigated six systems believed to hold two supermassive black holes. They discovered that one of these held three supermassive black holes with two of them circling each other rather like binary stars. The discovery implies that these tightly-packed supermassive black holes are fa...

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