Supermassive black holes shortly after the Big Bang: How to seed them

Supermassive black holes shortly after the Big Bang: How to seed them
They are billions of times larger than our Sun: how is it possible that, as recently observed, supermassive black holes were already present when the Universe, now 14 billion years old, was “just” 800 million years old? For astrophysicists, the formation of these cosmic monsters in such a short time is a real scientific headache, which raises important questions on the current knowledge of the development of these celestial bodies.
phys.org
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