Sagittarius A* has been seen by human eyes with an "image produced by a global research team called the Event Horizon ...
The image of supermassive black hole Sagittarius A * was created using data from the Event Horizon Telescope Collaboration. At the same time several telescopes, including the Chandra X-ray Observatory ...
In some galaxies, large amounts of interstellar gas are spiralling around the super massive black hole and getting pulled in ...