: As early as the 7th century BC, the Babylonians mapped the world as a disc surrounded by "bitter waters," beyond which lay seven mystical lands. These regions were described as the place "where the winged bird ends not his flight".
Throughout history, civilizations have populated the perceived "edges" of the world with legends and monsters. Space Legends At the Edge of the Universe
: Einstein’s theory of general relativity suggests that if the universe has "positive curvature," it could be finite but without an edge—much like the surface of a sphere where you can travel forever without hitting a boundary. 3. Modern Cultural Interpretations : As early as the 7th century BC,
In popular culture, the "edge of the universe" remains a fertile ground for speculative storytelling. Space Legends: At the Edge of the Universe - GamersGate : Einstein’s theory of general relativity suggests that
Modern science replaces monsters with abstract boundaries that define the limits of human knowledge.
: At the very edge of our visibility lies the CMB, a "relic" radiation from the hot, dense early universe.