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Jan 7, 2021

After decades of effort, scientists are finally seeing black holes—or are they?

Posted by in category: cosmology

Scientists hope to answer three specific questions: Do the observed black holes really have event horizons? Are they as featureless as the no-hair theorem says? And do they distort spacetime exactly as the Kerr metric predicts?


How do you prove that you’re observing a bizarre, featureless hole in the fabric of space and time?

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