'It was very fortunate timing': Astronomers watch 1st black hole to 'shut off' blast back to life - Livescience.com

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1. 'It was very fortunate timing': Astronomers watch 1st black hole to 'shut off' blast back to life  Livescience.com
2. This Supermassive Black Hole May Harbor a Bizarre Undead Star  Scientific American
3. Mysterious flashing seen near supermassive black hole. Astronomers have an idea what it is  USA TODAY
4. A supermassive black hole is sending out a mysterious pulsing beat  New Scientist
5. Astronomers Catch Unprecedented Features at Brink of Active Black Hole  Science@NASA

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