Gravitational Singularity

A gravitational singularity, spacetime singularity or just singularity is a "place or time" in which gravity is so intense that spacetime breaks.

A singularity in general relativity is weird:


 * a geodesic (a "line" in curved spacetime) is incomplete and gets terminated, and spacetime curvature becomes infinite.
 * stars collapsing beyond a certain point (the Schwarzschild radius) would form a black hole, inside which an infinite density singularity (covered by an event horizon) would be formed.
 * The initial state of the universe, at the beginning of the Big Bang, is also predicted to have been a singularity.