More location, even in an uncurved (flat) spacetime. The Universe could also be closed and positively curved: like a hypersphere. What is the shape of the Universe? If you had come along before ...

The Universe could also be closed and positively curved: like a hypersphere. ESO and deviantART user InTheStarlightGarden From any point in space, you are free to move in any direction you choose.

If that curvature is positive, then it may be that the universe is really the surface of a hypersphere, the 3D surface of a 4D sphere. In that case, our warp-ship would eventually travel all the ...

in the bulk universe the event horizon of a 4D black hole would be a 3D object — a shape called a hypersphere. When Afshordi’s team modelled the death of a 4D star, they found that the ejected ...

in the bulk universe the event horizon of a 4D black hole would be a 3D object — a shape called a hypersphere. When Afshordi’s team modelled the death of a 4D star, they found that the ejected ...