The world is likely to see see the first picture of a black hole soon, thanks to the Event Horizon Telescope
Astronomers across the globe will hold"six major press conferences" simultaneously on Wednesday to announce the first results of the Event Horizon Telescope .
"More than 50 years ago, scientists saw that there was something very bright at the centre of our galaxy," Paul McNamara, an astrophysicist at the European Space Agency and an expert on black holes, told"It has a gravitational pull strong enough to make stars orbit around it very quickly – as fast as 20 years."
"If you're on the inside of it, you can't escape because you would need infinite energy. And if you are on the other side, you can – in principle."At its centre, the mass of a black hole is compressed into a single, zero-dimensional point. That may sound like a big target, but for the telescope array on Earth some 26,000 light-years away, it's like trying to photograph a golf ball on the Moon.The other candidate is a monster black hole – 1,500 times more massive even than Sag A* – in an elliptical galaxy known as M87.
Breakthrough observations in 2015 that earned the scientists involved a Nobel Prize used gravitational wave detectors to track two black holes smashing together.
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