The supermassive black hole at the Milky Way’s centre is relatively calm and peaceful, which may be because magnetic fields keep gas and dust just out of reach
Source:
https://www.newscientist.com/article/2206685-our-galaxys-central-black-hole-is-oddly-quiet-now-we-may-know-why/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home