Unique pair of hidden black holes discovered by XMM-Newton
Paris (ESA) Apr 25, 2014 - A pair of supermassive black holes in orbit around one another have been spotted by XMM-Newton. This is the first time such a pair have been seen in an ordinary galaxy. They were discovered because they ripped apart a star when the space observatory happened to be looking in their direction. Most massive galaxies in the Universe are thought to harbour at least one supermassive black hole a ... more
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