The amazing phenomenon was observed by astronomers in outer space, they called it “dancing black holes”. Black holes are located in the galaxy OJ 287. A smaller black hole rotates around a large one. In this case, a large black hole is surrounded by a gas disk. When a black hole passes through a disk, it forms a powerful energy flash. And this flash is brighter than the light of one trillion stars. It is brighter than the light of a billion suns.
This flash was discovered by the infrared space observatory, which completed its mission. A telescope mounted on it once discovered a powerful distant flash of light, and after a while, the secret of its formation was discovered by scientists.
Astronomers claim that black holes have mobility, they never stand still and are very active in their movements. But since they are completely black, it is incredibly difficult to observe them, study their characteristics and movements.
However, scientists were able to calculate the location of the two dancing black holes and to reveal some details of their physical characteristics. In the galaxy, OJ 287 is one of the largest black holes, whose mass is 18 billion times the mass of the Sun. In the orbit of this black hole is another black hole. It is also supermassive, but compared with the neighbouring one, its mass is somewhat less, it is approximately 150 million solar masses.
Once every twelve years, a small black hole passes through a huge gas disk. This disk surrounds her more powerful "neighbour." When passing through a disk, a powerful energy surge arises. This bright burst takes nearly 3.5 billion years to reach the surface of the Earth.
But the orbit of the smaller black hole is oblong rather than circular, and it constantly moves around the second black hole, creating a kind of loop. When the smaller black hole passes through the disk, it creates two expanding clouds of hot gas that move away from the disk in opposite directions, which makes the disc four times brighter.
It is also difficult to observe the flashes of dancing black holes because they are located on the opposite side of the Sun, outside the field of view of telescopes.