“An AI-generated visualization of a distant galaxy, containing, besides dust, gas, and young stars, three massive, active black holes (black spheres, not to scale) with bright accretion disks. Other distant galaxies are shown in the background. And. A few stars in the foreground. Credit: MPE (generated with AI).” (ScitechDaily, Three Supermassive Black Holes Found in a Galaxy From the Dawn of the Universe) Supermassive black holes from the universe's dawn are among the most interesting objects in modern astronomy. Reseachers found three supermassive black holes in one galaxy. And the famous “little red dots” from the dawn of time. They are so-called black hole stars. Or at least some of them are. Those objects should tell us about the history of the young universe. And. Those distant objects. Tell us about gravitational interaction behavior over very long distances. We know that gravitational waves have a speed. Gravitational waves travel at the speed of light. This means. That gr...