H1821+643, a quasar powered by a supermassive black hole

Chandra Observatory shows black hole spins slower than its peers

30 June 2022

Astronomers have made a record-breaking measurement of a black hole鈥檚 spin, one of two fundamental properties of black holes. NASA鈥檚 Chandra X-ray Observatory shows this black hole is spinning slower than most of its smaller cousins.聽This is the most massive black hole with an accurate spin measurement and gives hints about how some of the universe鈥檚 biggest black holes grow.

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