Discovered a large concentration of quasars stretches for 4 billion light-years and in theory should not exist.
Astronomers have discovered the largest structure in the universe, which is a group of active galactic nuclei length of 4 billion light years away.
This structure is a large group of quasars (BMC), a collection of extremely bright galactic nuclei, which are located in the center of the black hole. This group is so large that requires a review of the current cosmological theory.
"Although it is difficult to grasp the dimensions of this BGK, we can definitely say that it is the largest structure in the universe," - said the study’s lead author, Roger Kloues from the University of Central Lancashire. "This is very interesting, and not least because it goes against our current ideas about the scale of the universe."
Quasars - the most luminous objects in the universe. For decades astronomers known that they tend to collect in large groups. The value of some of them can reach 600 million light-years.
But the record-breaking group of quasars, open Klouesom and his team is unprecedented. This collection of 73 quasars extends 1.6 billion light-years in most areas, and its widest point is 4 billion light-years.
For comparison, the disk of the Milky way, our home galaxy, extends only 100 000 light-years. And the distance from us to the nearest neighboring galaxy, Andromeda, is 2.5 million light years.
Scientists have calculated that the size of the structure more than 1.2 billion light-years should not exist at all.