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Questions tagged [singularity]

A point in space-time where matter is infinitely dense.

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How do black hole spinning at speed of light expose its singularity?

Black hole can spin very rapidly something about conserving momentum once a massive star used up its fuel and collapsed under it own weight, if black hole can spin at speed of light it could expose ...
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1answer
104 views

How does the center of a black hole can contain so much mass? [duplicate]

We know that "In the center of a black hole is a gravitational singularity, a one-dimensional point which contains a huge mass in an infinitely small space, where density and gravity become ...
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1answer
224 views

What created the big bang's singularity?

I have heard theories for the big bang like: of another universe existing before the Big Bang, or an unstable white hole that blew up, or our universe detaching from our mother universe, or our ...
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1answer
90 views

Why does kerr black holes have a ring shaped singularity rather than point?

I read about ring singularity on Wikipedia and didn't quite understand the flow of liquids inside a rotating body causing a ring shaped singularity with zero thickness. Moreover is it specifically ...
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0answers
32 views

Singularity in Black holes? [duplicate]

What is a singularity (black holes)? What happens to time and space at that point? What does it leads to?
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6answers
1k views

Black hole without singularity?

My question is about the equivalence about having an event horizon and having a singularity. In one side the implication looks pretty obvious: A singularity implies having an event horizon and ...
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1answer
98 views

Does our current understanding of the mass of black hole only allow for it to be located at the singularity? [duplicate]

Does the distribution of mass or density of mass inside the event horizon matter for a black hole to exist as we currently theorize? Could the mass inside the event horizon be distributed in any way ...
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1answer
198 views

Fate of helium moving toward a singularity

On the molecular level, if an atom, consider helium, were to fall into a black hole what would be the ultimate fate of its electrons, protons and neutrons -
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1answer
87 views

Why Did The Universe Expand? [duplicate]

If all of the mass and energy in the universe was in a point smaller than the size of an electron at one time, why did it expand? Did it necessarily expand immediately on formation, or could it have ...
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is it possible to prove some version of the “cosmic censorship hypothesis” of Roger Penrose which proposes that this is impossible?

Can singularities not hidden behind an event horizon, known as "naked singularities", arise from realistic initial conditions, or is it possible to prove some version of the "cosmic censorship ...
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6answers
1k views

Are black holes really singularities?

Can't black holes just be super dense objects? They could still be black (having the color of black never really required special physics, after all) and have a really strong gravitational field. If ...
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1answer
305 views

Do black hole singularities actually merge?

new questioner here so please be gentle. Do the singularities of merging black holes actually merge together? I mean there are 2 infinitely small objects (singularities) that are trying to find each ...
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1answer
410 views

How can a naked singularity be possible?

How can we have a singularity, without a black hole around it? How would one form? What does it do?