Linked Questions
23 questions linked to/from Can matter really fall through an event horizon?
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If you fall in a black hole, when do you go past the event horizon? [duplicate]
Say I fall into the event horizon of a black hole. As I cross the black hole, I would appear to outside onlookers to freeze in time, and would never move from that point again. In my perspective, time ...
user72789
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How can matter reach the singularity of a black hole if time stops at the event horizon? [duplicate]
Black holes are said to be composed of two parts:
A singularity at the center, where all the mass of the black hole is condensed in a point of zero volume.
A black and empty ball delimited by the ...
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Is it possible for things to fall past the event horizon? [duplicate]
Everything I can find says that time dilation approaches infinity at the event horizon of a black hole. Black holes evaporate over a finite amount of time. Wouldn't this imply that somebody falling ...
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Can matter actually go "inside" a black hole? [duplicate]
Pardon my question but I am no astro-physicist.
If a black hole is a singularity, A.K.A. a single point in space-time which is infinitely small and which has an infinitely high density, can matter ...
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How does time stoppage inside a blackhole affect physics? [duplicate]
From the gravitational time dilation theory we know that at event horizon of a black hole the time should stop completely. However all the physics phenomenon we know (at macro level) e.g laws of ...
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Is there any matter inside an event horison? [duplicate]
Consider a feeding, growing black hole. We never observe any matter to cross the event horizon, because time stops there. All matter would be "stuck" in a sphere around the event horizon, slowly ...
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Does it really take an infinite time to reach a Black Hole's event Horizon? [duplicate]
Does it really take an infinite time to reach a Black Hole's event Horizon.
The forumla for gravitaional time dialation is.
$$t_0=t_1\sqrt{1-r_s/r}$$
So I used wolfram alpha to calculate the time that ...
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Does someone falling into a black hole see the end of the universe?
This question was prompted by Can matter really fall through an event horizon?. Notoriously, if you calculate the Schwarzschild coordinate time for anything, matter or light, to reach the event ...
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How can anything ever fall into a black hole as seen from an outside observer?
The event horizon of a black hole is where gravity is such that not even light can escape. This is also the point I understand that according to Einstein time dilation will be infinite for a far-away-...
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Event horizons without singularities
Someone answered this question by saying that black hole entropy conditions and no-hair theorems are asymptotic in nature -- the equations give an ideal solution which is approached quickly but never ...
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Are black holes eternal?
The question might sound very easy - Hawking radiation, however I was pondering that as you get closer and closer to a black hole, time dilates exponentially where the surface of the black hole is "...
user43495
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Do you see the outside world from inside the black hole (can you see past the horizon from inside it)? [duplicate]
I have read these questions:
If you fall in a black hole, when do you go past the event horizon?
Can matter really fall through an event horizon?
How can anything ever fall into a black hole as ...
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Zero $g$ in a black hole?
At the very centre of the Earth, masses cancel each other out, creating an effective zero-$g$ environment. Would the same happen in a black hole?
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Does it actually take infinite (observer) time for someone to fall into a black hole?
If you were to watch your friend approach a black hole, I understand that you'd see their clock slow until they appear frozen and redshift within a few seconds. But if you were to detect the ...
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Dropping a mirror into a blackhole
Say you dropped a mirror into a black hole while observing at a distance and holding a clock such that the clock's face was pointing to the black hole.
What is the latest time you would view on the ...
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What happens when an electron jumps through the event horizon of a black hole?
If quantum teleportation is performed into a black hole (by an electron for example), what happens to that electron?
Let's say a hydrogen atom is very close to a black hole and the electron jumps ...
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Why can't we see things swallowed by black holes?
Apologies in advance, I'm a layman with only a school-level education in physics.
If an object approaching the event horizon of a black hole has its light cone progressively bent towards the black ...
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Why can black hole evaporate if objects need infinity time to reach event horizon (as seen by a distant observer)?
I am new to black hole, but have a question about it:
Object needs infinity time to reach event horizons (as seen by a distant observer).
Particle-antiparticles separates, one of them drops into ...
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How can black hole get mass if nothing can pass its event horizon? [duplicate]
External observer will never see any mass crossing event horizon - any object near it would appear frozen, red-shifted and then disappearing. In this case - how black hole can possibly get any mass ...
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if singularities can be observed from the rest of spacetime, causality may break down
if singularities can be observed from the rest of space-time, causality may break down, and physics may lose its predictive power,i don't understand how it will happen?we don't have any idea what will ...
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Particles reaching a singularity [closed]
If the gravity well steepens to infinity at the point of a singularity, then so does the "time well". Understandingly, the inward falling energy/matter is not aware of this change in time relative to ...
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Would you reach a singularity before evaporation of the black hole? [duplicate]
When going to a physics camp the other day, we discussed the Schwarzchild-metric for a rotational symmetric non-spinning black hole and its famous time-dilation properties.
However, we know that ...
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Black Holes should take infinite time to form with the increase in mass to form one [duplicate]
How can black hole form because as the density begins to increase gravity also start to increase and time starts to slow. wouldn't it take infinite time to form a black hole. how can anything fall ...
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