https://scitechdaily.com/supermassive-black-holes-en-route-to-cataclysmic-collision-doomed-pair-closer-than-ever-observed/
New observations and analysis reveal two Goliath black holes just 750 light-years apart and closing, as they circle each other in the aftermath of a galaxy merger. Astronomers from Flatiron Institute and their colleagues have spotted two ghostly Goliaths en r…
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