Can an event horizon exist without a singularity?
no proof of a singularity can exist as any thing that enters an event horizon can not return as there accessible future only exists in the black hole other wise they have to travel faster than the speed of light which according to Einstein is always the same. The horizons also cannot appear, not only singularities.
Can you have a black hole without a singularity?
In the real universe, no black holes contain singularities. A singularity is a point in space where there is a mass with infinite density. This would lead to a spacetime with an infinite curvature.
Is the event horizon of a black hole a singularity?
The ‘event horizon’ is the boundary defining the region of space around a black hole from which nothing (not even light) can escape. The basic structure of a black hole consists of a singularity hidden by an event horizon.
What happens when there is no singularity?
The universal origin story known as the Big Bang postulates that, 13.7 billion years ago, our universe emerged from a singularity — a point of infinite density and gravity — and that before this event, space and time did not exist (which means the Big Bang took place at no place and no time).
Why can’t naked singularities exist?
Evaporating black holes are naked singularities since they are not fully concealed by their event horizon. Unfortunately, the radiation is too weak to be detectable for astrophysical black holes more massive than three suns with horizon size bigger than the length of Manhattan.
What would singularity look like?
What would a singularity look like in the quantum mechanical context? Most likely, it would appear as an extreme concentration of a huge mass (more than a few solar masses for astrophysical black holes) within a tiny volume. Now imagine two such singularities colliding as a result of the merger of two black holes.
Is a singularity infinitely small?
At the center of a black hole is what physicists call the “singularity,” or a point where extremely large amounts of matter are crushed into an infinitely small amount of space.
Can you survive crossing the event horizon?
Beyond the Event Horizon Black holes are bizarre objects that get their name from the fact that nothing can escape their gravity, not even light. If you venture too close and cross the so-called event horizon, you’ll never escape.
What happens when you reach the singularity of a black hole?
And according to the math of Einstein’s theory of general relativity (which is the only math we’ve got), once you pass through the ring singularity, you enter a wormhole and pop out through a white hole (the polar opposite of a black hole, where nothing can enter and matter rushes out at the speed of light) into an …
Do singularities really exist?
“Singularities” do not exist. The “theory” is based on nonsense math using zero and infinity as the extremes in an equation describing no actual thing/event in the actual physical world. There is no “infinite mass density” and nothing exists in zero volume.
Can a black hole exist without a singularity?
A black hole is defined as a region of space surrounded by this particular type of event horizon. So there is nothing in the definition that directly requires a singularity. It is certainly possible to have a horizon without a singularity.
Is it possible to have a horizon without singularity?
It is certainly possible to have a horizon without a singularity. In fact, horizons are observer-dependent. In flat (Minkowski) spacetime, you can have an observer with constant proper acceleration, and for that observer, there is a horizon. Events behind the horizon can never send a signal that the observer will be able to receive.
Could a neutron star be a black hole?
So that means this neutron star you propose is actually a black hole. Another equivalent definition of a black hole is any object whose mass is concentrated inside that object’s event horizon. But you might still ask, could you have a black hole where the mass inside the event horizon is not a singularity.
Is time travel possible in a black hole?
The inner event horizon of a rotating black hole, also known as the Cauchy horizon, is stranger. Past that threshold, cause no longer necessarily precedes effect, the past no longer necessarily determines the future, and time travel may be possible.