News tagged with supermassive black holes

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Black hole hidden within its own exhaust

Supermassive black holes, millions to billions of times the mass of our Sun, are found at the centers of galaxies. Many of these galactic behemoths are hidden within a thick doughnut-shape ring of dust and gas known as a ...

dateSep 15, 2016 in Astronomy
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Dormant black hole eats star, becomes X-ray flashlight

Roughly 90 percent of the biggest black holes in the known universe are dormant, meaning that they are not actively devouring matter and, consequently, not giving off any light or other radiation. But sometimes a star wanders ...

dateJun 22, 2016 in Astronomy
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