How big is the universe? The observable universe is about 93 billion light-years across, even though the universe is only 13.8 billion years old. How is that possible—and what exists beyond the observable universe?

In this cinematic space documentary, explore the true size of the universe, cosmic expansion, light-years, the cosmic microwave background, dark energy, the cosmic web, and cosmic inflation. Discover why 93 billion light-years is not necessarily the edge of reality and why the total universe could be vastly larger—or even infinite.

We’ll also explore modern mysteries including the Hubble tension, DESI’s dark energy findings, and discoveries from the James Webb Space Telescope (JWST).

Relax, put on headphones, and journey to the limits of the known cosmos in this immersive bedtime science and sleep documentary.

Subscribe for more astronomy, astrophysics, cosmology, and relaxing science documentaries.

#Universe #Cosmology #SpaceDocumentary #Astronomy #Astrophysics

13.8 billion year old universe, expanding universe, expansion of space, cosmic expansion, cosmic microwave background, cosmic horizon, cosmological event horizon, dark energy, dark matter, cosmic inflation, eternal inflation, infinite universe, cosmic web, Laniakea supercluster, Hubble tension, Hubble constant, DESI dark energy, James Webb Space Telescope, JWST early galaxies, cosmology explained, astrophysics documentary