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naked singularity

In general relativity, singularities - ragged edges of spacetime - that form in the collapse of massive bodies or in similar processes are typically hidden inside black holes, in other words: spacetime in their vicinity is distorted so much that no information about the singularity can ever reach the outside world. Hypothetical singularities which are not cloaked in this way, and thus are visible to the rest of the cosmos, are called "naked". By the cosmic censorship hypothesis, no realistic kind of collapse can lead to the formation of a naked singularity.

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