In physical cosmology, the shape of the universe refers to both its local geometry and cosmic topology. Local geometry is defined primarily by its curvature, General relativity explains how spatial curvature (local geometry) is constrained by gravity.
In physical cosmology, the shape of the universe refers to both its local geometry and cosmic topology. Local geometry is defined primarily by its curvature, General relativity explains how spatial curvature (local geometry) is constrained by gravity.
Source: Wikipedia "Shape of the universe" · CC BY-SA 4.0
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