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Black Holes

Parent Category: Stellar Evolution
Black holes are regions in space created by the death of stars. Their gravitational field is so strong that even light cannot escape from it.
The black hole represents a crust in the space which swallows anything that passes through it. Even light cannot escape from a black hole! There is a particular radius for a mass to become a black hole when it is squashed. This is known as the Schwarzschild radius and for the body to become a black...
First of all, there's two theories of relativity. The one on normal  relativity which indicates that an object that is moving very fast  will experience less time than one that is stable. The one on  special relativity indicates that the more gravity an object is  putted into, the less time it...
Because it does not have enough mass to crush itself with it's gravity.
Neither, dark matter is an undetectable yet massive existence within our universe. It is spread out relatively smoothly, not bunching up in particular locations. For more information, search dark matter images (computer simulated), they help the visualization of it.
Black holes havent quite been explained yet. Some scientists still havent found out why black holes are created, and what creates them. But people have suggested that black holes are usually made o rubbish. (Im talking about junk that is left in space such as crashed space ships, or either broken...
Inside is unknown but around the edge is very hot.
Well, maybe. Black holes are bodies in the universe and they are so dense that nothing, not even light, can escape. Black holes can suck an entire planet whole. Use this as an example: if an inhabitated planet was in the path of a black hole, the inhabitants would be killed along with their home....
Nothing. The distortion of space and time within a black hole's  event horizon is so extreme that the only possible direction of  movement is further inward.
Sure, if it gets close enough, it might. By the way, any other object of sufficient mass could also "suck" the Sun if it gets close enough.\n Sure, if it gets close enough, it might. By the way, any other object of sufficient mass could also "suck" the Sun if it gets close enough.\n Sure, if it...
The ancient Greeks and Celts had mermaid myths.
What you are seeing is an absence of light. You distinguish a black objects presence by its lack relative to other things.
From the unimaginable force of gravity. As you fell into a black hole, first you would be torn in half, then that half would be torn in half, then that half would be torn in half, so on and so on all the way down to every atom in your body.
A black table is black because all of the colours are absorbed , and none are reflected. It is the same for any other black item too, for example: A chair. Now, if a chair is red, that is because blue and green (the 2 other primary colours in light) are absorbed and red is reflected. It is the same...
not every star can turn into a black hole, because it has to meet a certain size to do so. our sun will not turn into a black hole, how ever, it will destroy our planets. many stars can turn into black holes, but only when it meets the end of its life which is when it stops burning gas.stars have to...
No. The nearest black hole is about 1,600 light years away.
No. White dwarfs, neutron stars, and black holes are three  different things. With the exception of some black holes, all are  remnants of the cores of dead stars at various degrees of collapse.   A white dwarf is the remains of a low to medium mass star  consisting of atomic nuclei surrounded...
    For a thermal radiation source, the peak of the blackbody radiation curve is at a photon energy 2.8 times the temperature in electron-volts.     The temperature in electron-volts is 1/11,600 times the temperature in Kelvin.     Use E = hv to convert from the photon energy...
black holes swallow all energy and matter around them, including  electricity
No they do not. All matter in a black hole is crushed into a single point called a singularity. A point does not have any dimensions so there is no bottom. Or even a top for that matter.
They've observed the black cloud around which no light escapes that surrounds a black hole.They've observed the bending of light around the black hole, which caused two identical looking universes side by side.They've observed the galaxies rotating around them.
No. You will not be swallowed by the black hole but you still would  not survive for very long. If the sun become a black hole it would  retain the same mass, so the orbits of the planets would remain the  same. It is only within the former radius of the sun that gravity  would be unusually...
The "boundary" you're probably thinking of is called the event  horizon. Past this point, the escape velocity of the black hole  exceeds the speed of light, meaning nothing, including light, can  escape it.
A black hole consists of three main parts: The Accretion disk, (outer edge made up of hot gasses/rock etc). The event horizon (the part that looks as though it it a huge black hole, this is because the parts moving into it are moving faster than the speed of light so you cannot see the past this...
after a neutron star collapses on itself
There is no way to escape from a black hole because it's gravity is infinite.
A black hole can have an electric charge if it swallows electrically charged objects, but no objects that we know of have magnetic charge. Magnets always have both a north pole and a south pole; there is no evidence that one can exist alone. A lone north or south pole would be called a magnetic...
no because it would destroy the space if it went in to a black hole
Albert Einstein predicted their existence using some pretty  complicated math. It was not until some years after his death that  we actually detected one (Cygnus X-1).
First of all, there cannot be a black hole on the sun because it's  to small, but technically speaking a star which is massive enough  for it's core to collapse and form a black hole will be a star that  is not alive any more but will still seem like a normal star for  around three hours, and...
Depends how close the neutrino is to the black hole.
Just an another random volunteer I guess.
The mass of a black hole is contained in a singularity, which is a  single infinitely dense point.
Firstly you get streched then you rip into two then 4 then 10 and you keep doing that until you are a stream of atoms then you get squished and then get burnt up. CAUSE OF THE FREAKIN FCC!Oh yeah that will feel good if you get sucked into a blackhole.
Gravity. When a star of 3+ solar masses collapses in on itself, gravity continues to make its matter denser and denser.
No. Neptune is a planet, so if it had a black hole on or around it, it would be pulled in.
It could be noted that the tidal force near most black holes wouldstretch you to death ("spaghettify") ... but that the larger andmore massive the black hole, the less you'd feel this tidal force.In the unlikely event you could get to a large enough black hole,could survive the intense radiation...
Aside from space, the structure surounding a black hole is an  event horizon (Or apparent horizon depending on if you go by  Hawking's new theories or not). The "black hole" is actually the  event horizon while the object of the hole itself is the  gravitational singularity at the center.  The...
To be quite plain, no mater cannot escape a black hole. Not even light its self can escape the gravitational pull of a black hole.*more info*Black holes are created when a massive star (about 3-4 times the size of our sun) explode and create a supernovae. The stare will then implode on its self...
Scientists "see" things through specialized equipment that identify waves that are invisible to a human eye i.e. microwaves, gamma waves, etc.   Also because we are in the Milky Way, right? SO There are many stars in our galaxy. So, they can see it because it was a big black gap right in our...
no the galaxy is way to big for a black hole to do much in fact we  now know that there is a supermassive black hole in the center of  our galaxy right now.
It sucks it in and packs it into a great big ball of extremely dense matter which is why everything is pulled into it in the first place.
The very outside part of a black hole when "feeding" is called the Accretion Disc. when a black hole is not devouring a star the outside part becomes the Event Horizon.
In fact, black holes cannot be directly viewed. They can only be  located by seeing how much radiation is coming from a certain point  in space. The black holes cannot be viewed directly because they  absorb the electromagnetic radiation that goes near them.
Black holes,were theorized since the 1800's,it was predicted byEinstein's theory that they were really real.Since then this forcedastronomers to think such a thing is real,and yet they are,butthere very rare to find,so we don't really know what telescopediscovered a black hole.So we thing the Hubble...
Light is not only attracted to a black hole, in fact, its attracted  to you, to me and to everything made of matter in the universe. The  problem is that light is affected by gravity, and the black holes  have so much that light significantly change trajectory or the  black holes absorb the...
The "no-hair" theorem states that black holes have only three  properties for an outside observer: charge, mass, and spin. In  other words, given two black holes with these three properties  being identical, no other information could be obtained to tell  them apart - for example, whether one...
We have never actually been able to stick a thermometer in one so this questing is a Little hard to answer with a any reliable reply.
yes, there is actually a giant black hole in the center of our galaxy, but don't worry because we are safely orbiting around it. A black hole is basically really really really dense material, which forms a blob where the gravitational pull is so stong nothing can escape it, not even light. It can...
The sun does not have enough mass to form a black hole. Only stars  25 times the mass of the sun or more can form black holes.
No, black holes absorb all light, so they are virtually invisible. The only way they can be "seen" is by measuring the gravity around it.
Gravity takes the form of a field around an object with mass. The mass 'curves' space time around it, causing nearby objects to be attracted towards it. Therefore gravity does not need to 'escape' from a black hole, the strong gravitational field around it is the reason other things cannot escape...
They do the opposite, they stretch you.
It adds to the mystery and fun for a guy. First seeing it catches  the eye then it is a must to play with it. It is the foreplay hole.
That's easy! We don't. So far, no sign of the proposed "dark matter" has been discovered, nor have the properties of "dark matter" been firmly defined. The concept is still evolving, and will do doubt be extensively modified in the coming years.
Most Black Holes are created when a star that has 20 times the mass of our sun dies. In a stars life there is a constant war between pressure pushing out and gravity pulling in and when it dies it the outer part is thrown into space and the inner core collapses into itself, creating a black hole.
there really is no way of knowing for sure at least not with thetechnology we have now but there are a lot of theories ranging frommassive seismic events like earthquakes and volcanic eruptions allthe way to releasing demons from hell.
well black holes are some of the weirdest things in the universe  even Albert Einstein said that they are so weird the nature  shouldn't even allow them to happen
Your nose is a tiny bit bigger than your eye.
It depends on what you're studying besides black holes. If you're studying planets along with black holes, you could be an astrophysicist. Or, if you're studying atoms along with black holes, you could be a theoretical physicist. Just a few examples.
no, they are not gateways
  == Answer ==   Could be a vacuum leak - perhaps bad brake booster   Could be worn brake linings metal to metal
They got the name Black Holes because they suck in light. That's why they are called Black Holes.
Geologist and philosopher John Michell proposed their existence in  a paper written in 1783. He realized a star might be so massive  that light would not escape, and called them "dark stars." It was  later in early 20th century when they received more interest as a  consequence of Einstein's...
They don't "lead" anywhere. Any mass that falls into the black hole stays in the black hole. There is a theory that, in the case of rotating black holes, matter may emerge elsewhere from a "white hole".It's an idea that remains controversial and highly speculative.
At the event horizon, theory holds that escape velocity is equal to  the speed of light. Outside the event horizon it would decrease  with increasing distance away from the black hole per the inverse  square rule; inside the event horizon it is thought to exceed the  speed of light; thus nothing...
In point of fact, the actual volume and density of a black hole must be determined indirectly, working back from the Schwarzschild radius for the estimated diameter of the black hole's event horizon.There is also the consideration that the center of a black hole can be thought of as near infinite...
Singularity, where all matter is crushed to a point of the same density but zero volume and takes up zero space.
No one discovered it. It is still not known for sure if a supermassive black hole does exist at the centre of our Galaxy.
Don't go near it. Once you are within the event horizon, there is no hope. In fact you would be dead long before crossing the event horizon. Tidal forces would have turned you and your vehicle into a kind of space spaghetti.
You can't really "make" a black hole, but you can do research, present on the research and do a small demonstration of one of the properties of a black hole.For example, there are lots of experiments you can set up to measure the force of attraction between two objects. You can use that as a launch...
They are important because if you go near a black hole, you will die and you could never ESCAPE. One word you cant do is ESCAPE
No. Only the the most massive stars become black holes. The vast  majority of stars, up to about 8 to 10 times the mass of the sun  form a dense remnant called a white dwarf. Stars between 10 and 25  and perhaps up to 40 times the mass of the sun form a denser  remnant called a neutron star....
I am not at all sure what you mean with "stop". Like any other astronomical object, a black hole is free to react to the gravitational pull of other objects, and move around as a result.Comment: I think the answer required here is: at the "event horizon".
Yes. And they are so dense that nothing, NOT EVEN LIGHT, can escape.
We do not actually know what is happening within a black hole. It is clear that the currently accepted theories of Physics cannot explain what exists within the Schwartzchild radius of a black hole (and the Schwartzchild radius, or event horizon, is much larger than a point). There are some...
when you walk in the street, you just don't mind what is around you, and probably you will fall into a hole, or smash into a pole.
This answer depends on the size of the black hole. Black holes  devour anything that falls onto the event horizon. As a black hole  eats any and everything around it, it will grow. These black holes  will exist as long as the universe exists. Small black holes do  evaporate and disappear. This...
In theory, a black hole can pop into existence from other universes and dimensions. If this theory is correct, then a microscopic black hole could be to your left right now......Don't worry though. These black holes don't hang around long enough to do any real damage. Usually, they can disappear...
Answer . Safe to say you need to get it serviced ASAP before any more internal DAMAGE occurs. You may get lucky and only need to replace the fluid.. Good Luck.
Scientists still are not sure why most galaxies contain  supermassive black holes. One idea is that the first stars, which  were very massive, formed smaller black holes when they died which  then merged together. Another idea is that large clouds of gas at  the centers of the proto-galaxies...
supermassive blackholes can contain multiple galaxies, however, the  wouldn't be recognizable because they would be super compressed  into infinitely small points of matter
Anything "can" turn into a black hole, as long as it is massive enough and dense enough. For example, Earth can turn into a black hole if all its mass is squeezed into a point about a centimeter in radius. The only reason that we don't see this happening is because you can't just make Earth denser...
  a black hole is not actually a hole...it is a super dence point whose gravity is so powerful it pulls everything into it
its an unknown fact but if met its possible it could join and grow or blow.
No one knows how the FIRST black hole came to be; it happened long before humans roamed the Earth, long before the Earth formed, before the Sun was born. Black holes were probably formed in the titanic explosions of the supernova of massive stars.
There are many trillions upon trillions upon trillions of black holes. Many of them are massive like the one in the center of hour galaxy. However, because they are nearly impossible to see, many go unnoticed. There are also uncountable amounts of microscopic black holes floating all around you....
The extreme energies associated with matter falling into a black  hole often excite it enough to produce characteristic x-ray  emissions.