Supermassive black hole at heart of ancient galaxy ‘far larger than expected’

Discovery of GS-9209, one of the furthest from the Milky Way, adds to evidence that large black holes prevent star formation, astronomers say

A supermassive black hole discovered at the heart of an ancient galaxy is five times larger than expected for the number of stars it contains, astronomers say.

Researchers spotted the immense black hole in a galaxy known as GS-9209 that lies 25bn light-years from Earth, making it one of the most distant to have been observed and recorded.

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