Supermassive black holes are found at the centre of galaxies - including our galaxy, the Milky Way. Credit: NASAFrom Cosmos/AFP:
PARIS: The first supermassive black holes formed just a billion years after the Big Bang, showing that big structures build up quickly in the universe, scientists said.
Ordinary black holes are entities of mass whose gravitational pull is so huge that not even light can escape them. But they are dwarfs compared to so-called supermassive black holes, which are many orders of magnitude bigger.
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