Scientists unveil image of 'gentle giant' black hole at Milky Way's centre

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WASHINGTON — Scientists on Thursday (May 12) provided the first look at the 'gentle giant' lurking at the centre of our Milky Way galaxy — an image of a supermassive black hole that devours any matter within its huge gravitational pull but is currently on a bit of a diet. The black hole — called Sagittarius A*, or Sgr A*...

A handout photo. This is the first image of Sagittarius A* , the supermassive black hole at the centre of our galaxy. It was captured by the Event Horizon Telescope , an array which linked together radio observatories across the planet to form a single "Earth-sized" virtual telescope. The new view captures light bent by the powerful gravity of the black hole, which is four million times more massive than our Sun.

Sagittarius A* possesses four million times the mass of our sun and is located about 26,000 light-years — the distance light travels in a year, 5.9 trillion miles — from Earth. The image was obtained using the EHT's global network of observatories working collectively to observe radio sources associated with black holes.

"They go through periods where there is a lot of material around them," Özel said. "... And then they go through these quiescent phases like the one at the centre of our galaxy where matter is just trickling in."

 

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