For decades, astronomers have spoken of galaxies with supermassive black holes at their cores. Now they say they’ve clearly confirmed one such hole’s encircling, dusty, spinning disk of gas.
ALMA telescope spies a supermassive black hole's spinning disk

For decades, astronomers have spoken of galaxies with supermassive black holes at their cores. Now they say they’ve clearly confirmed one such hole’s encircling, dusty, spinning disk of gas.
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