Beyond The Universe -

If the universe is finite, it doesn't necessarily have a "wall." Instead, it might be curved like the surface of a sphere.

: Our universe could be an isolated "island" floating in a higher-dimensional "super-universe". What's Beyond The Observable Universe? Beyond the universe

: A common misconception is that the universe expands into something. In reality, space itself is stretching ; it doesn't need "empty room" to grow into. 3. The Multiverse and "Super" Universes If the universe is finite, it doesn't necessarily

: Measurements suggest the universe is "flat" like an endless sheet of paper. This implies it may be infinite in extent , with no physical edge at all. 2. Beyond the Fabric of Space-Time : A common misconception is that the universe

: Most cosmologists believe that if you traveled past this "horizon," you would just find more galaxies and stars stretching on forever.

: This theory proposes that infinite other universes exist, perhaps with different laws of physics.

: In this model, if you travel in one direction long enough, you eventually end up back where you started . There is no "outside" because the fabric of space-time itself is all that exists.