Beyond: The Universe

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

: 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 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. : Most cosmologists believe that if you traveled

: 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 In reality, space itself is stretching ; it

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