https://phys.org/news/2019-10-supermassive-black-hole.html
The counter rotation pattern that is predicted in Dr. Scott's Birkeland current model is pretty unique.
Unexpectedly, they found two counter-rotating disks of gas. The inner disk spans 2-4 light-years and follows the rotation of the galaxy, whereas the outer disk (also known as the torus) spans 4-22 light-years and is rotating the opposite way.
"We did not expect to see this, because gas falling into a black hole would normally spin around it in only one direction," said Impellizzeri. "Something must have disturbed the flow, because it is impossible for a part of the disk to start rotating backward all on its own."
The counter rotation pattern that is predicted in Dr. Scott's Birkeland current model is pretty unique.