Home / Science / Where did the supermassive black hole “Mirach’s Ghost” come from?

Where did the supermassive black hole “Mirach’s Ghost” come from?



About 10 million light-years from Earth, a blurry galaxy called Mirach’s Ghost can help unravel a dark mystery: where the largest black holes in the universe came from. But this spooky galaxy has also deepened the mystery surrounding the birth of these objects.

A black hole is a singularity, a region in spacetime where matter has become too dense to sustain itself and collapsed to a formless point. Supermassive black holes (SMBH) are cosmic monsters that often weigh billions of times the mass of our sun, compared to the mass of heavy stars that form ordinary black holes. They sit at the centers of large galaxies, sucking up gas and whipping stars around with their enormous gravitational pulls. There is one in the middle of the Milky Way and an even larger one in the middle of the Virgo A galaxy astronomers have photographed. But it is still not clear how these mammoth objects were formed.


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