Supermassive black holes are a specific type of black hole that are millions to billions of times more massive than our Sun. They are typically found at the centers of galaxies, including our own Milky Way galaxy.

The podcast episodes #MARS: Perseverance and the mysterious terrain. Bob Zimmerman BehindtheBlack.com and Ep. 5: Black Holes both discuss the existence and properties of supermassive black holes. The first episode mentions the discovery of two supermassive black holes orbiting each other in a distant galaxy, while the second episode delves into the general nature of black holes, including the concept of supermassive black holes at the centers of galaxies.