At the center of the Milky Way galaxy exists a supermassive black hole that's more than four million times the sun's mass. A human traveling to the black hole's surface, known as the event horizon and ...
Anyone who has watched Matthew McConaughey plunge into a supermassive black hole in "Interstellar" may think they have a rough idea of what it'd be like to encounter one of these terrifying cosmic ...
On the left, in blue, is an X-ray image of an accreting supermassive black hole (shown inset as artwork) composited on an optical image of galaxies in the deep universe. On the right is an ...
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