Dark Flow Theory is suggestive of a parallel universe &/or multiverse. Dark Flow suggests some galaxy clusters are moving (towards or away from our solar system) in amazing speeds but out of sync with the rest of the universe (per my understanding). But, we already know, aside from this article, that it is known now that it isn't galaxies moving in space in the fast expanse, but the fabric of space is the actual expander effecting gravitationally-bound objects...per this link:
Info Gathered From an article at Resonance Science Foundation:
Dark Flow – Large-scale Cosmic Structure and Evidence of the Multiversehttps://resonance.is/dark-flow-large-scale-cosmic-structure-evidence-multiverse/
Highlights by DPearce © 2019.