One of the early and most popular Scence Fiction topics ahs been the parallel universe, with millions of worlds like our own but with differences.
FOX News reports possible evidence of a parallel universe has been found. And if there is one, there are probably thousands.
Confirmation of that presumptive discovery would likely solve a great many puzzles of science, one being why it takes more energy than this universe contains to transport any appreciable mass from here to the nearest star at faster than lkight speeds.
As usual, we shall see what we shall see, when we see it.