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Massive Black Hole At Centre Of Our Galaxy Has Been Pictured For The First Time

Home> News

Updated 15:06 12 May 2022 GMT+1Published 14:58 12 May 2022 GMT+1

Massive Black Hole At Centre Of Our Galaxy Has Been Pictured For The First Time

Scientists captured the image using the Event Horizon Telescope

Emily Brown

Emily Brown

The first image of the massive black hole at the centre of our galaxy, the Milky Way, has been revealed.

Captured by the Event Horizon Telescope (EHT), the image was unveiled today (12 May) in six simultaneous news conferences in Washington DC and around the globe.

The image shows a glowing circle of orange-yellow light surrounding a dark centre portion and was captured through the work of the eight synchronised radio telescopes around the world which make up the EHT.

Named Sagittarius A*, the supermassive black hole is around 4.3 million times the mass of the Sun and is located approximately 27,000 light-years away from Earth.

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Sagittarius A* is located at the centre of the Milky Way.
Alamy

The team behind the EHT had a breakthrough in capturing images of a black hole they revealed the first picture of another black hole, M87, in 2019.

Sagittarius A* proved more difficult for scientists to capture, The New York Times reports, as it evolves a thousand times faster than M87, changing its appearance as often as every few minutes as light was bent and twisted around by gravity being sucked into the centre.

The team managed to capture the image after developing new tools to account for the gas movement around Sagittarius A* and observing the supermassive black hole on multiple nights, collecting data for many hours in a row in a similar way to how long exposure time is used on cameras.

Describing the difference in capturing images of the two black holes, EHT scientist Chi-kwan (‘CK’) Chan, from Steward Observatory and Department of Astronomy and the Data Science Institute of the University of Arizona, US, said: “The gas in the vicinity of the black holes moves at the same speed — nearly as fast as light — around both Sgr A* and M87*.

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"But where gas takes days to weeks to orbit the larger M87*, in the much smaller Sgr A* it completes an orbit in mere minutes. This means the brightness and pattern of the gas around Sgr A* was changing rapidly as the EHT Collaboration was observing it — a bit like trying to take a clear picture of a puppy quickly chasing its tail.”

After capturing the image, EHT scientist Keiichi Asada, from the Institute of Astronomy and Astrophysics, Academia Sinica, Taipei, said the team will be able to study the differences between the two black holes to gain 'valuable new clues about how this important process works'.

If you have a story you want to tell, send it to UNILAD via [email protected]  

Featured Image Credit: EHT Collaboration

Topics: Space, Technology, US News, World News, Science

Emily Brown
Emily Brown

Emily Brown is UNILAD Editorial Lead at LADbible Group. She first began delivering news when she was just 11 years old - with a paper route - before graduating with a BA Hons in English Language in the Media from Lancaster University. Emily joined UNILAD in 2018 to cover breaking news, trending stories and longer form features. She went on to become Community Desk Lead, commissioning and writing human interest stories from across the globe, before moving to the role of Editorial Lead. Emily now works alongside the UNILAD Editor to ensure the page delivers accurate, interesting and high quality content.

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