by Pierre CELERIER Agence France Presse An international team of astronomers on Thursday unveiled the first image of a supermassive black hole at the centre of our own Milky Way galaxy — a cosmic body known as Sagittarius A*. The image — produced by a global team of scientists known as the Event Horizon Telescope (EHT) Collaboration — is the first, direct visual confirmation of the presence of this invisible object, and comes three years […]