How do we know that black holes really exist? We can obviously

How do we know that subatomic particles really exist? We can obviously not see them, so how exactly do we know they actually exist and the indirect evidence that we have of them is not actually caused by something else?

>>9127850
You can interact and make experiments with them, can't interact with a black hole though.

How do we know that dark matter really exists? We can obviously not see them, so how exactly do we know they actually exist and the indirect evidence that we have of them is not actually caused by something else?

>>9127852
How do we know that the Big Bang really existed? We can obviously not see it, so how exactly do we know it actually existed and the indirect evidence that we have of it was not actually caused by something else?

How do we know that black matter really exists? We can obviously not see it, so how exactly do we know it actually exists and the indirect evidence that we have of it is not actually caused by something else?

How do we know that fields really exist? We can obviously not see them, so how exactly do we know they actually exist and the indirect evidence that we have of them is not actually caused by something else?

How do we know that Neanderthals really existed? We can obviously not see them, so how exactly do we know they actually existed and the indirect evidence that we have of them was not actually caused by something else?

>>9127859
you dense motherfucker, you are not funny.

>>9127861
How do we know that the Roman Empire really existed? We can obviously not see it, so how exactly do we know it actually existed and the indirect evidence that we have of it is not actually caused by something else?

>>9127864
t. brainlet who didnt understand OP's point.

OP is right, the only black holes we can more or less detect are the super-massive black holes at the center of the galaxies, and there could be other explanations for the fact that at the center of galaxies physics don't work anymore.

They aren't proven obviously. They are a theory put into place to explain some observable phenomena in the sky's

It's a perfectly logical explanation as to why light is bending in space though. How many times you have observed light bending? not richoteting but physically bending.

>>9127879
>How many times you have observed light bending?

Any time I put a straw into a cup of water.

>>9127846
The reality we live in is a black hole

>>9127886
ur moms black hole lmfao

It isn't even possible for black holes to not exist.
You aren't going to tell us gravity isn't real are you?

>>9127852
>can't interact with a black hole
This retard.
They are predicted by our current model of physics, and they are observed behaving exactly as expected.

>>9127846
A black hole is a metaphor for something, it is a region of space where light (figuratively speaking) cannot enter but can only escape due to there being no gravity (figuratively speaking), inside this region people do not acknowledge the outside world even exists.

>>9127879
Lights bend around objects don't they?

>>9127890
Just because there are birds, doesn't mean that every bird that is theoretically possible exists.

Black holes by the way can't really come into existence. In theory they are created by suns that have such a big iron core that the implosion of the core will lead to a mass so big that not even light can escape its gravitational pull. In reality a core can not become so big, because it would have already collapsed and died in a super nove long before the core has reached masses big enough to form a black hole.

Check mate blackhole-fanatics.

>>9127980
>suns
There is only one sun and its called Sol.

Those things you see in the sky are stars.
They are mostly hydrogen fusion reactors.

>>9127846
>>9127850
>>9127856
>>9127859
>>9127861
>>9127864
>>9127869


How do we know that OP really exist? We can obviously not see him, so how exactly do we know he actually exists and the indirect evidence that we have of him is not actually caused by something else?

File: 1503062854683.jpg (43KB, 750x842px) Image search: [Google]

43KB, 750x842px

how has no one used the obvious yet
>How do we know the wind really exists? We can obviously not see it, so how exactly do we know that it actually exists and the indirect evidence that we have of it is not actually caused by something else?
get better bait op

>>9127846
Well we have seen massive stars through telescopes (several thousands of times the size of our sun) orbiting seemingly nothing. Lets say its not a black hole, what do we know about it?
1. Its massive, like REALLY massive. Not in size but in the literal meaning of having lots of mass. Its throwing giant stars around very tight orbits like toys. If we know the mass of said stars we could calculate just how massive the mystery object is but thats not necessary. Its fucking HEAVY as FUCK is the point im trying to get across here.
2. It emitts no light, at least none that can be detected by the telescope.
3. It reflects no light from the stars orbiting it.
This is starting to sound an awful lot like the black holes. You know, the one Einstein talked about. Hes that guy who came up with GR like almost 100 years ago and people today still havent been able to prove a single part of his theory wrong using highly advanced technology. Im going to say, given the evidence and Einstein's credibility, its far more likely that black holes exist, rather than dont exist. If someone can provide evidence contradicting their existence i will gladly reconsider my statement, but right now, the burden of proof is on those claiming black holes arent real.

>>9127846
To give you an actual answer, there are several ways.

1) We know the effects of a supermassive black hole would do to its neighborhood. So by whatching stars close to the center of the galaxy rapidly orbit an invisible object with far too much mass, we know that object must be a black hole. Likewise, when we see galaxies far away have stars worth of mass orbiting a small thing, we know that thing must be a black hole.

2) By detecting the effects black holes have on the cosmos. Such dense objects cause gravitational waves, which are perturbations in spacetime. Those perturbations make things get a tiny bit closer and farther away, and with a long enough "ruler" we can measure the variation.

3) Maths. The same physics that predict black holes predicts a bunch of other stuff. By discovering all the other stuff, we have very strong reasons to believe black holes exist too.

4) We don't really know. It is a fact that physics break down at the singularity, so in truth we don't absolutely know what a black hole is. It might be the case that they are nothing like we imagine beyond the event horizon, or that the event horizon is not as we think it is.

But whatever black holes are, we know for a fact that there exists very massive, black objects in the center of galaxies, and less massive but equaly black objects colliding sometimes. And we strongly believe such objects are the same black holes our science predicts.

And at last, science is as much faith as it is rigor. Science puts faith in the universe being consistent, in the universe obeying the same laws everywhere, and in our corner of the universe not being special. If you accept that, you accept science. If not, well, you don't.