... like the Milky Way’s Sagittarius A* would be around four million times our star’s mass ... why stars at the outskirts of the Milky Way appear to drop off in speed, called Keplerian decline.
New research suggests that the heart of the Milky Way may be dominated by a dense clump of dark matter rather than the supermassive black holeSagittarius A* ....
If a pulsar that may lie at the center of our galaxy is confirmed, it could enable more precise measurements of the spacetime around the Milky Way’s central supermassive black hole... .
By studying tiny changes in the rhythm of distant pulsars, scientists report signs that a massive, invisible object is quietly drifting near our corner of the Milky Way. .
Instead of a bottomless gravitational pit, the Milky Way’s core could be filled with an exotic, ultra-dense form of dark matter—so compact that it behaves like a black hole without actually being one. ...The future of the Milky Way’s center.