Space Legends At The Edge Of The Universe < Tested >

: 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".

: The "edge" of our universe is not a physical wall but a limit of information. Because light takes time to travel, we can only see objects within a bubble roughly 93 billion light-years in diameter. Space Legends At the Edge of the Universe

Modern science replaces monsters with abstract boundaries that define the limits of human knowledge. : As early as the 7th century BC,

: 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