This is the best tl;dr I could make, original reduced by 75%. (I'm a bot)

> Scientists at Durham University discovered the "Ultramassive" black hole by observing its pull on passing light, called gravitational lensing.

> The academics said the black hole was 30 billion times the size of our Sun and was the first to be measured using gravitational lensing.

> Dr Nightingale told BBC Radio Newcastle: "Even as an astronomer, I find it hard to comprehend how big this thing is."If you look at the night sky and count up all the stars and planets you can see and put them in a single point, it would be a fraction of a percent the size of this black hole.

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