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Astronomers capture first image of Milky Way’s black hole

By By Seth Borenstein, Associated Press
The Milky Way black hole is called Sagittarius A*, near the border of Sagittarius and Scorpius constellations (Event Horizon Telescope Collaboration via AP)

The world got a look on Thursday at the first wild but fuzzy image of the supermassive black hole at the centre of our own Milky Way galaxy.

Astronomers believe nearly all galaxies, including our own, have these giant black holes at their centre, where light and matter cannot escape, making it extremely hard to get images of them.

Light gets chaotically bent and twisted around by gravity as it gets sucked into the abyss along with superheated gas and dust.

The colourised image unveiled on Thursday is from the international consortium behind the Event Horizon Telescope, a collection of eight synchronised radio telescopes around the world.

Previous efforts had found the black hole in the centre of our galaxy too jumpy to get a good picture.

The University of Arizona’s Feryal Ozel called the black hole “the gentle giant in the centre of our galaxy” while announcing the new image.

It confirmed Albert Einstein’s general theory of relativity by being precisely the size that Einstein’s equations dictate. This one is about the size of the orbit of Mercury around our sun.

Black holes gobble up galactic material but Dr Ozel said this one is “eating very little”. It is the equivalent to a person eating a single grain of rice over millions of years, another astronomer said.

Scientists had expected the Milky Way’s black hole to be more violent, but “it turned out to be a gentler, more cooperative black hole than we had simulated,” Dr Ozel said.

“It is the cowardly lion of black holes,” said project scientist Geoffrey C Bower of Taiwan’s Academia Sinica Institute of Astronomy and Astrophysics.

Because the black hole “is on a starvation diet” so little material is falling into the centre, and that allows astronomers to gaze deeper, he said.

The Milky Way black hole is called Sagittarius A*, near the border of Sagittarius and Scorpius constellations. It is four million times more massive than our sun.

This is not the first black hole image. The same group released the first one in 2019 and it was from a galaxy 53 million light-years away.

The Milky Way black hole is much closer, about 27,000 light-years away. A light year is 5.9 trillion miles (9.5 trillion kilometres).

The project cost nearly 60 million US dollars (£49m) with 28 million dollars (£23m) coming from the US National Science Foundation.

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Dive Deeper:
Astronomers capture 1st image of Milky Way's huge black hole
Astronomers have unveiled the first wild but fuzzy image of the supermassive black hole at the center of our own…
First image of black hole at the centre of the Milky Way unveiled by scientists
A NEW picture has given the world its very first look at the supermassive black hole at the centre of the Milky Way…
Astronomers capture first image of black hole at center of Milky Way
The image of Sagittarius A* offers an unprecedented look at the extreme object driving the evolution of our galaxy.
Astronomers reveal first image of black hole at Milky Way's centre
Paris (AFP) - An international team of astronomers on Thursday unveiled the first image of a supermassive black hole at…
One subscription that gives you access to news from hundreds of sites
Massive black hole at heart of Milky Way seen for first time
The first image revealing a “supermassive” black hole at the centre of the Milky Way galaxy has been released.
First image taken of Milky Way black hole
Astronomers have revealed an image of the black hole at the centre of the Milky Way galaxy for the first…
Get all your news in one place