The object Sagittarius A* at the centre of the Milky Way has for decades been interpreted as a black hole more than four million times the mass of the Sun.
Sources
- Scientists thought there was a black hole at the centre of our Galaxy. It turns out it may be something even stranger | BBC Sky at Night Magazine (skyatnightmagazine.com)
- https://www.cfa.harvard.edu/news/supermassive-black-hole-our-galaxy (cfa.harvard.edu)
- https://eventhorizontelescope.org/blog/astronomers-reveal-first-image-black-hole-heart-our-galaxy (eventhorizontelescope.org)
- https://www.nobelprize.org/uploads/2020/10/popular-physicsprize2020-1.pdf (nobelprize.org)
- https://www.nasa.gov/image-article/supermassive-black-hole-sagittarius/ (nasa.gov)
- https://www.eso.org/public/news/eso2017/ (eso.org)
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