![Artist's concept of two black holes orbiting each other within the dark center of a quasar. A flaring, white disk of gas surrounds the objects.](https://science.nasa.gov/wp-content/uploads/2023/04/hs201531awebprint-jpg.webp?w=4096&format=png)
binary black holes in a quasar
This illustration depicts a binary black hole found in the center of the nearest quasar to Earth, Markarian 231.
Credits: NASA, ESA, and G. Bacon (STScI)
Image CreditNASA, ESA, and G. Bacon (STScI)
Size640x448px
This illustration depicts a binary black hole found in the center of the nearest quasar to Earth, Markarian 231.