What is beyond space? | Almanac.com

What is beyond space?

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What is beyond space?
Space is understood as being four-dimensional — finite, but without borders or an edge. Here’s a three-dimensional example: One can travel on the surface of Earth as long as one wants, never finding a boundary or edge, and yet Earth is finite. Some astronomers think that our universe is not alone, that there may be zillions of other universes that began with a big bang, will last for billions of years, and then will disappear.