Messier 77 is a large whirlpool galaxy in appearance with a likely supermassive black hole nucleus https://www.nasa.gov/feature/goddard/2017/messier-77 https:/

Messier 77 is a large whirlpool galaxy in appearance with a likely supermassive black hole nucleus https://www.nasa.gov/feature/goddard/2017/messier-77 https://www.nasa.gov/feature/goddard/2017/messier-77