Was our universe born in a Black Hole?
482700
My current belief is that there was time before time as we know it. Something "had" to exist before the cosmos as we now understand it. The Big Bang wasn't the first, nor the last. In order for that to occur, yes, I believe that it was the result of a black hole to end all black holes reaching its limit. It's a thin, untested theory, but it is what I am with until something better is derived. This is consistent with my answer to your later question. That is I haven't thought about the possibility of one universe existing within another. It is plausible in my mind though and interesting enough to think about it for years to come.
751203
Another way of asking that same question is what existed before the Big Bang?  Did space even preexist then?  The Big Bang is believed to have originated from a singularity (similar to the center of a black hole) that included all the energy and matter of the entire universe.  The "dot?" containing the universe was so dense that none of the laws of physics as we know them likely existed.  Therefore, was it possible for space as we know it to exist?.  We know that space can be bent by nearby mass which is the reason the moon orbits the earth without a string attached like spinning a model plane.  Would a singularity so immense bend and suck in all the space?  The fact that we can measure out a cubic space with a yardstick merely means that we can create a mathematical model of a space or a practical space to fill but does not mean that we know the origin of the space or complete nature of the space.  It is likely that the Big Bang created its own space and it extends no further than the matter and light energy that has expanded to fill it.  Hope you don't want proof.
383398
Not much actually as we still don't really have a clue what black holes actually are.\nThere are many questions to ask about the greenness of the black hole.. First, if the light is coming from the black hole itself then we actually don't have any black holes and everything we thought about them was wrong. \nScience is the art of guesswork based on what we already know. The term for this is called EMPIRICAL Science. Basically everything we are aware of is explained in this way.. When we make new laws or decided a black hole is a black hole, we are only guessing according to what we already know. \nIf you remember, people thought the world was flat, based on what they knew at that time. \nAnd the zeroth law of thermodynamics is called the zeroth because they had already come up with the first ,second and third before they realised they'd missed one..\nThe good thing about this is that essentially, this makes you just as smart as any of the top scientists in the world. Sadly, most of them would not share this point of view!!!!!
435554
I think we are in a black hole mechanism.  The universe can disappear by degrees into a black hole or holes, but similarly, it reappears in what they call "white holes".  White holes have been seen very far away, and by the rules of this universe, very far back in time.  Who is to say, however, that time is not fluid, and only has to move in one direction?  I think that the material that goes into black holes reappears way back in time in the white holes, that the whole "time" concept is fluid and adaptable, and the multiple universes are all this one.
695407
Excellent question! It's got many of us thinking.\n\nThe nature of black holes is such that not everything cannot escape from it, contrary to popular belief.\n\nBlack holes will emit high energy photons in a gamma ray burst.\n\nDavid Cline at UCLA suggests they are the detonation of microscopic black holes formed in the Big Bang, which most astronomers believe was the beginning of the universe. If the idea is right, billions and billions of relatively nearby, primordial black holes are just waiting to explode. \n\nSome may exist just beyond the orbit of Pluto, based on the math.\n\nThere was a recent article in New Scientist regarding a similar topic to this. Another good point for research would be NASA's Chandra telescope pages.\n\nI'll certainly be discussing this one with my team!
334992
There are thoeries but they are just that theories.  Some people believe in the big crunch, in that the universe will eventually stop expanding and then retract to a singularity.\nOr that black holes will carry on being created and absorb one another untill the entire universe is swallowed up.\n\nBut to be honest science does not really have the means to provide a definitive answer at the moment.  We will have to wait and see.
190845
I believe there are two kinds of black holes. One I'm sure everyone will explain to ya, a great mass so large that light can't even escape it's gravity. But the other kind is theoretical: What if everything in THIS universe came from somewhere else? That is the only way I can explain it, except that somehow we are all headed for it again, to be sucked into it and expel ed into another place which right now is completely void, and this universe would be turned inside-out again.
594050
well no one would know because no one can escape from a black hole not even light, the fastest thing in the universe, can escape. some scientist believe that everything in a black hole is singularity which means everything is one dimension. well it won't take you across the universe Wat he/she means is that inside a black hole there may be planets stars rocks gases and so much stuff that it would be considered a universe. or he is mistaking it with a worm hole but like the guy above me said there is no evidence that they exist.
34341
We can only theorize about the physics that happens there.  Nothing escapes black holes, not even light.  Everything is crushed to sub-atomic densities and stays there.  They suck up everything and give out nothing ( like some people).\n\nSome believe that the entire universe will eventually be consumed by its black holes.  Don't worry, not in your lifetime.\n\n\nOh, Bermuda?  Relax.  Black holes require matter densities higher than the sun, higher than neutron stars.  There's nothing even close to that on earth.
378154
It is not a star going supernova that creates a blackhole. Its the collapsing of its core that does. Just wanted to clear that up.\n\nA blackhole is created when a star is so massive (at least 20 times that of our Sun) that the bonds between the atoms, or molecules, are no longer strong enough to fight against the force of gravity.  This causes the star to collapse in on itself, and eventualy create a blackhole.\n\nThere are some beliefs that a blackhole could lead to a parallel universe.  But this gets a bit hazy in details, as no one knows for sure, and its currently impossible to prove or disprove.  A blackhole has an "event horizon", that once you have passed through you cannot get back out, nor can you see past it from the outside.  Because of this event horizon, it is very unlikely that you could get out of the blackhole into another universe .....\n\nHowever ..... A theoretical astronomical body called a white hole has been predicted, although its existence has not yet been proved.  It is the opposite of a blackhole, in that instead of "sucking" up all the matter in its path, it spews it out instead.  IF this exists, then there is a chance that a white-black hole pair could be a gateway to another universe, or another part of our universe.  But I can't stress enough, this is purely theoretical, and absolutely NO proof has been found yet.
765948
Our whole universe is considered a white hole through the Big Bang theory where it states that universe was created in a black hole.Basically, it's a hole that emits or releases matter. Kinda the opposite of a black hole. So depending on your logic white holes could exist.
21273
I've heard some call black matter a blackhole. The honest truth is we just dont know. Its a theory nothing more. A human concept to TRY to understand something. \n\nLike the notion of "time". We measure that based on our small experiences within our solar system. For all we know there could be a larger, grander universal measurement.
128460
It might be, or it might be a neutron star. We do not really know. \n\nThere are some other objects in the sky which are much more certainly black holes, from their masses and other properties.
224610
unless this is a "zen" question, it doesn't "go" anywhere.  A black hole is a former star that has died and collapsed in upon itself and had its mass "infinitely" compressed into a tiny tiny volume.
230892
...a black hole is it is not really a hole...you should be able to go behind it, in front of it, and so on...for example leading scientist know think that the center of our galaxy is a black hole...now you can see that there is something on the otherside of it...the galaxy is not cut in half with us only waiting for our end...it is simply a piont in space in with nothing can escape (check first reference)\n\nthe word "black hole" was coined by scienctist john wheeller (sorce #2)...it was basically science shorthand...then hollywood got a hold of the name and behold...people now think there is someting on the other side...some magical land were unicorns and wizards breath\n\na black hole is what left after a star at least 10x the size of our sun uses all the energy ...after which the star goes super nova, then it becames a black hole (#3)...\n\nlong story made short...what is behind a black hole...most likely another star...then another...then another\n\nwhat would happen if  you tried to go trough a black hole...you would be crushed and then you would die
989306
A very good question but one that we don't know the answer to yet.  It is a hypothetical situation that could create a wormhole or perhaps the center of a blackhole is where this kind of phenomenon occurs.  The bottom line is that there is no hard evidence of this but it seems possible according to mathematical models.
1169308
It's a planet.  Planets are too small to be blackholes.  I will ignore the second part of your question.