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Discover Magazine on MSN9h
A Black Hole Awakens in a Distant Galaxy, Producing X-Ray Bursts
Learn why a black hole is becoming active and why experts still can't explain the source of its regular, periodic pattern of ...
Space.com on MSN21h
NASA spacecraft spots monster black hole bursting with X-rays 'releasing a hundred times more energy than we have seen elsewhere'
Astronomers have used space-based telescopes, including NASA's Swift X-ray observatory, to watch a monster black hole spring to life with powerful X-ray eruptions.