Ultra large ring structure in the deep universe defies our current understanding of the universe.
I can imagine this large ring, billons of light years in circumference, to inspire wild science fiction.
@XaoslordErie @evamarie
One of my old favorites, back when I had time to read more! The Ringworld series was the first that came to my mind, too.
@evamarie
Larry Niven wrote several novels about such things. Great, great Science Fiction writer and his Ringworld series are some of my most-read books.