For the first time, astronomers have caught a glimpse of light being reflected from behind a supermassive black hole, 800 million light years away from Earth.
before, this is the first time they have been able to see the phenomenon happening from the other side.
Light in the form of X-rays bounces off the back of the black hole's hot accretion disk, producing reflections called "echoes". The X-ray flares are generated when the black hole's giant magnetic field gets tangled up in its spin. This occurs when some X-rays manage to slip past the black hole's massive gravitational pull, only to get sucked back in.
"I've been building theoretical predictions of how these echoes appear to us for a few years," Dr Wilkins said.
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