De Melkweg heeft mogelijk twee superzware zwarte gaten
https://astronomy.com/news/201....9/12/the-milky-way-m

The Milky Way may have two supermassive black holes | Astronomy.com
astronomy.com

The Milky Way may have two supermassive black holes | Astronomy.com

Measurements of stars orbiting our galaxy's core suggest our 4-million-solar-mass black hole, Sagittarius A*, may have another supermassive companion lurking nearby.