Another observed phenomenon is that the universe expansion (so also dark energy) is not the same in every direction. https://www.nasa.gov/universe/universes-exp

Another observed phenomenon is that the universe expansion (so also dark energy) is not the same in every direction. https://www.nasa.gov/universe/universes-expansion-may-not-be-the-same-in-all-directions/ https://www.nasa.gov/universe/universes-expansion-may-not-be...