What Exists Outside the Universe Does: The Universe Have Boundaries ? | Sleep Astronomy

Close your eyes and imagine we are drifting away, far from Earth, past the Sun, reaching the very edge of the most distant stars. If you traveled in a spaceship in a straight line forever, would you hit a wall at the edge of the universe? Or would you eventually end up back where you started? In this video, we tackle one of cosmology's toughest questions: What exists outside the universe? and Does the universe have boundaries? _________________________________________________________________________ Subscribe now to Sleep Astronomy! Calm, curiosity-filled documentaries on galaxies, biology, and time await - relax your mind, learn something new, and sleep easy. #sleepastronomy #spacedocumentary #universe #universefacts