Outside observers cannot see universe singularities {cosmic censorship hypothesis}. Universe has no singularities without an event horizon ("naked" singularities). All singularities have an event horizon. Outside observers cannot see space-time time-like singularities (ideal points) {strong cosmic censorship hypothesis}. Universe singularities can be space-like or light-like (null) but not time-like. Outside observers far away in space-time cannot see time-like singularities {weak cosmic censorship hypothesis}.
Universe can have singularities without an event horizon. Spinning or charged black holes can lose event horizons after small charge or spin increases or small mass decreases. Exploding black holes can expose singularities. Perhaps, cosmic censorship is true only if cosmological constant is zero or negative.
Physical Sciences>Astronomy>Universe>Cosmology>Singularity
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Date Modified: 2022.0224