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Astronomers using NASA's Chandra X-ray Observatory have discovered a supermassive black hole, RACS J0320-35, in the early universe that's growing at more than twice the theoretically possible rate. Born just 920 million years after the Big Bang, it's approximately 1 billion times the mass of our sun. This 'super-Eddington' black hole's rapid growth challenges current cosmological models and suggests fast-growing black holes may be more common in the early universe than previously thought. The research was published in The Astrophysical Journal Letters.

Prepared by Olivia Bennett and reviewed by editorial team.