Sagittarius A*: The Milky Way's supermassive black hole - Space.com

Here's what we know so far about Sagittarius A*, a slumbering cosmic titan.

Sagittarius A*, often abbreviated to Sgr A* and pronounced "Sagittarius A star", is a supermassive black hole located at the center of our spiral galaxy, the Milky Way. Sagittarius A* is mostly dorm… [+7321 chars]

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