Edge Of The Universe — Space Legends At The

: 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

: Many ancient Greeks believed that traveling far enough toward the world's edge would lead to savage lands inhabited by dog-headed people and tigers with human faces. Space Legends At the Edge of the Universe

: 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". : Einstein’s theory of general relativity suggests that

Throughout history, civilizations have populated the perceived "edges" of the world with legends and monsters. : As early as the 7th century BC,

Modern science replaces monsters with abstract boundaries that define the limits of human knowledge.