Weird Science Space Universe Documentary | Biggest Mysteries of the Cosmos Solved, 2 hr Runtime

Cosmology. A mystery of the cosmos. SOMETHING is badly wrong with the expansion of the universe. Nearby galaxies seem to be moving away from one another too fast, we don't know why and every new set of data just seems to make the problem worse.

Dark energy has a finite density, approximately 68% of the total energy density of the Universe. ... If the actual Universe is infinite, extending forever beyond our cosmological event horizon, then the total dark energy is infinite, but that beyond our cosmological event horizon can never interact with us.