Astrophysicists detect ultra-fast winds near supermassive black hole - "We're talking wind speeds of 20 per cent the speed of light, which is more than 200 million kilometres an hour. That's equivalent to a category 77 hurricane."

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Astrophysicists detect ultra-fast winds near supermassive black hole - "We're talking wind speeds of 20 per cent the speed of light, which is more than 200 million kilometres an hour. That's equivalent to a category 77 hurricane."