The residents of the British town of Birkenshaus saw the huge black ring of unknown origin in heaven.
Initially, the witnesses agreed that the black ring form was a firecracker. However, firefighters reported that there was no fire in the surrounding area.
After that, the residents turned to the meteorological service, but their experts were also unable to explain the nature of this phenomenon.
Theres sinister device that emmits theese i forget exactly but maybe something like an emp
Interesting!
Best explanation I have seen regarding these rings is an electrical transformer exploding.