galactic centre

plural galactic centres

1. Commonwealth spelling of galactic center.

   'Quasar' — short for quasi-stellar radio source — are bright galactic centres.

   2019 August 6, Ian Randall, “Explosive reveal: Quasars change colour from red to blue when their black holes belch out so much energy that they shed layers of dust and gas”, in Daily Mail, London: DMG Media, →ISSN, →OCLC, archived from the original on 05 Nov 2025

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   They [gamma rays] are produced by supernovae, neutron stars, galactic centres, black holes and the like.

   2002 October 24, “Integral observations”, in The Economist, London: The Economist Group, →ISSN, →OCLC, archived from the original on 27 Sep 2020

   The only known source of such intense magnetism in our own galaxy is the supermassive black hole Sagittarius A*, which sits at the Milky Way’s center. “Maybe this FRB source is in a similar environment, a galactic centre environment,” [Jason] Hessels said.

   2018 January 11, Sarah Kaplan, “Scientists are zooming in on fast radio bursts — the most mysterious signals in space”, in National Post, Toronto, Ont.: Postmedia Network Canada Corp., →ISSN, →OCLC, archived from the original on 05 Nov 2025

   Scientists believe galactic centres could act as Schelling points for civilisations that cannot communicate among themselves.

   2020 February 14, Sarah Knapton, “Aliens might have placed beacon in centre of Milky Way, say scientists”, in Chris Evans, editor, The Daily Telegraph, London: Telegraph Media Group, →ISSN, →OCLC, archived from the original on 15 Feb 2020

1. Commonwealth spelling of Galactic Center.

   They spread out from the galactic centre 25,000 light years from Earth like fragmented spokes on an enormous wheel.

   2023 June 2, Ian Sample, “Scientists discover mysterious cosmic threads in Milky Way”, in Katharine Viner, editor, The Guardian, London: Guardian News & Media, →ISSN, →OCLC, archived from the original on 02 Jun 2023

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   This work had to be done by looking at infrared light. That’s because, at visual wavelengths, huge clouds of dust and gas obstruct our vision – we can only see about 10 per cent of the distance to the galactic centre in this way (Sagittarius A* is approximately 26,000 light years away).

   2018 April 10, Phil Charles, “Astronomers may have discovered a dozen black holes in the centre of our galaxy”, in The Independent, London: Independent News & Media, →ISSN, →OCLC, archived from the original on 16 Aug 2022

   If an advanced civilisation anywhere in the Milky Way wanted to put a beacon somewhere … the galactic centre would be a good place to do it.

   2020 February 14, Sarah Knapton, quoting Andrew Siemion, “Aliens might have placed beacon in centre of Milky Way, say scientists”, in Chris Evans, editor, The Daily Telegraph, London: Telegraph Media Group, →ISSN, →OCLC, archived from the original on 15 Feb 2020

1. Commonwealth spelling of Galactic Center.

   3. The Galactic Centre / This image looks deeper into space to the centre of our Milky Way Galaxy.

   2021 December 30, Carole [Ann] Haswell, “The great beyond: Five of the most exciting pictures of the universe”, in The Independent, London: Independent News & Media, →ISSN, →OCLC

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   'The options were a quasar-like outburst from the black hole at the Galactic Centre, or star-power — the hot winds from young stars, and exploding stars,' said team member Dr Gianni Bernardi of the Harvard-Smithsonian Center for Astrophysics, in Cambridge, Massachusetts. 'Our observations tell us it's star-power.' In fact, the outflows appear to have been driven by many generations of stars forming and exploding in the Galactic Centre over the last hundred million years.

   2013 January 2, Mark Prigg, “The mystery of the 'monster' charged particles coming from the centre of our Galaxy (but don't panic, astronomers say they aren't dangerous)”, in Daily Mail, London: DMG Media, →ISSN, →OCLC, archived from the original on 03 Jan 2013

   It was especially challenging because of the haze of stars, dust, and gas in between Earth and the Galactic Centre, as well as the fact that the pattern of light from Sgr A* [Sagittarius A*] changed quickly, over the course of minutes.

   2022 May 12, Joe Pinkstone, quoting Ziri Younsi, “Supermassive black hole at the centre of Milky Way galaxy pictured for first time”, in Chris Evans, editor, The Daily Telegraph, London: Telegraph Media Group, →ISSN, →OCLC, archived from the original on 12 May 2022

1. Commonwealth spelling of Galactic Center.

   The Galactic centre was already shining high in the sky, with the zodiacal light beautifully complementing it on the right.

   2024 May 21, Matt Fidler, “Milky Way photographer of the year 2024 – in pictures”, in Katharine Viner, editor, The Guardian, London: Guardian News & Media, →ISSN, →OCLC, archived from the original on 21 May 2024

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   'Our unprecedented survey of a large part of the Galactic centre has given us detailed insights into the formation process of stars in this region of the Milky Way,' said author Rainer Schödel of the Institute of Astrophysics of Andalusia in Spain.

   2019 December 16, Ian Randall, “Stunning high-resolution image of the central region of the Milky Way uncovers evidence of an ancient ‘star burst' that caused more than a hundred thousand supernova explosions”, in Daily Mail, London: DMG Media, →ISSN, →OCLC, archived from the original on 05 Nov 2025

   “Our discovery lets us speculate about the presence of planets, since these are often formed around young stars. It seems plausible that the detection of planets in the Galactic centre is just a matter of time,” said Florian Peißker, a researcher at the University of Cologne, Germany, and lead author of the new study.

   2024 December 18, Andrew Griffin, “There could be planets around the supermassive black hole at the heart of our galaxy, scientists say”, in The Independent, London: Independent News & Media, →ISSN, →OCLC, archived from the original on 19 Dec 2024