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In preparation for tomorrow's big announcement, physicist Brian Greene of the World Science Festival talks to two experts to find out what actually goes into photographing a black hole...
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How Do You Observe a Black Hole? The Event Horizon Telescope on the Verge of a Breakthrough

Black holes may hold the key to understanding the most fundamental truths of the universe, but how do you see something that’s, well, black? Astronomers thin...

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