Are black holes the absence of matter?
Just the opposite. A black hole is the presence of matter with infinite or near-infinite density.
No, the absence of matter would be a vacuum, which is quite different from a black hole. A regular black hole has a fairly large amount of mass (which is basically the same as matter) in a small space.
Black Holes' can 'eat' any type of matter in the Universe.
The matter basically stays in the black hole.
absence of matter ADDED BY JACOBM1198: Actually, white is the absence of color. Many people think that black is the absence of color because they think it is the absence of light, but it isn't true. Black absorbs all light and all color, which is why it is dark and less reflective than white, which reflects all light and color. Therefore, white is the absence of color. Absence of matter is not correct.
black holes swallow all energy and matter around them, including electricity
Gravity is a property of matter. Black holes are made of matter.
well black holes grow when they suck up or absorbe more matter etc.
black holes rotate in a spirlish way to suck all matter inwards and out to the bright side
Black holes were stars that were so massive that they collapsed on itself. The gravity in black holes is infinite and more you get closer to it, more time gets slower. Black holes suck all matter that is too close. Even light can't escape Black holes.
Bursts of light from black holes are the result of the accretion (or "consumption") of matter by black holes. Quasars are an example of this.
No. Without matter there would be no black hole. The black holes confirmed to exist so far actually have a fairly large amount of matter (or mass) - at least 2-3 times the mass of our Sun. The largest black holes have millions or even billions of times the mass of our Sun.
No. The mass, and therefore the gravitation, of black holes, are only a tiny fraction of matter in the galaxies. The greatest part of the matter in a galaxy is dark matter - matter of unknown composition at the time of this writing.
Actually, the purpose of black holes is to absorb matter and spew it out into the universe to seed new galaxies, stars, planets and things. Black holes are the "cleaners" of the galaxy, in my opinion.
I think that's unlikely. The only relevant features of black holes are its mass, electric charge, and rotational momentum. What makes dark matter different to baryonic ("normal") matter is that it doesn't interact with normal matter, except through gravity - so it seems that none of the differences would be relevant, once such matter is converted to a black hole.
yes black holes swallow every matter
Stars & black holes.
The density of matter just after the big bang is calculated to be sufficient to have spontaneously created black holes; such are called primordial black holes, and searches for their existence are ongoing.
Quasars are believed to be caused by supermassive black holes. Those are black holes that have a mass of millions, or billions, of solar masses. More specifically, to "active" black holes - that means that, at the moment we are observing - lots of matter is falling into the black hole.
Black holes release energy in the form of x rays as tidal forces rip and shred infalling matter.
black holes The black hole we see is the Event Horizon. Its realy not a hole. Just a spherical region in space where matter ceases to exist.
It is not known how many black holes exist. One of the main reasons is that, if matter is not actually falling into the black hole, it is impossible to detect.
No. Black holes do not give off anything other than small amounts of Hawking radiation. That note aside, scientists do not know what dark matter is or what its origin is.
Yes. As they swallow matter, the black hole can get bigger and bigger.
black holes don't really have color... they just named it "black hole" because no light can escape from it... neither do anything else, for that matter.
Simply put, the existence of black holes is consequential to the laws of physics. If you have enough matter and it's concentrated enough, there will be a point at which the escape velocity is higher than the speed of light and a black hole forms. For more detailed reasons as to why black holes exist, a separate study of each type would help, primordial black holes are believed to have been generated by processes during… Read More
Hypothetical celestial bodies that behave in an opposite manner to black holes and rather than pulling everything in they spit matter out. White holes also have a unstable gravity and collapse and turn into black holes.
The general tendency is for black holes to grow. If any matter falls into a black hole, its mass will increase, and therefore its Schwarzschild radius (the radius of its event horizon) will increase as well. The general tendency is for black holes to grow. If any matter falls into a black hole, its mass will increase, and therefore its Schwarzschild radius (the radius of its event horizon) will increase as well. The general tendency… Read More
They know because the effect the black hole has on other matter.
it doesn't matter black holes are always getting older
Black holes consist of matter, not anti-matter. They are formed from the super-nova of stars that consist of matter.
the absence of matter is nothing.
Nobody actually knows but my theory is that black holes and white holes are conneted since black holes bring in light and matter while the other side of the rainbow blows out light. ( well put theory)
Black holes can increase in mass (and therefore size; the diameter of a black hole's event horizon is directly proportional to its mass) by accretion, or taking in additional matter and/or energy.
The way I understand it, any structures of matter involved in the creation of black holes are destroyed - not even atoms remain. What remains is the black hole's mass.
No. There is no such thing as "negative matter." There is a such thing as anti matter, but it still has positive mass.
They get destroyed. Their matter becomes part of the black hole.
It is unlikely that any single black hole will ever consume even a significant part of the matter of the universe. However, the Heat Death hypothesis does allow for a large portion of the matter in the universe eventually falling into multiple black holes, and for black holes merging to form more massive black holes, possibly massing many times the Galaxy's central black hole.
Scientists can detect black holes by using x-rays and gamma rays. Black holes still can release matter, and black holes give off a lot off x and gamma rays.
No. Stellar mass black holes form when massive stars die and their cores collapse. It is unknown how supermassive black holes form. Quasars are a product of supermassive black holes that form when more matter falls toward one than can fit through the event horizon.
Black holes are invisible but the matter falling in makes friction and heats up which glows and gives of heat,x rays,etc. Most black holes look like galaxies, you know, the usual swirl with the strange black dot in the middle. Some black holes look like a simple black dot, floating in space.
An active black hole is a black hole that it by all manner of terms is "feeding". That is, it is accreting matter, or sucking matter into itself. Most black holes are dormant and don't show any signs of accreting matter.
I will try to simplify the answer down to the black hole object itself, and I assume the question revolves around classic black holes and not quantum black holes (which may very well be the hottest hypothetical objects in the universe). It is insufficient to state that a black hole is simply "cold" or "hot", since black holes can be both - and only in extremes. A black hole attracts matter via. the immense gravitational… Read More
They're still called black holes. A black hole remains defined as a black hole as long as it absorb everything near them, both energy and matter, including gas.
Black holes can suck up anything in their vicinity. Their powerful gravity pulls all nearby matter to them. Typically this is interstallar gas and particles.
I can't comprehend how suction would work in a vacuum :-) Black Holes' use their gravitational force to pull matter into them.
Through extreme gravitational pull.
No. We do not have the means to compress matter so much.
Black holes are the remains of a giant star that has had its gravity collapse upon itself. Black holes suck in any matter that gets within it's gravitational range and smashes it down into tiny particles. It goes inside the black hole of it and is never seen again. Scientists do not know what happens after the matter is sucked in because black holes do not illuminate any light (Its gravity is so strong it… Read More
The absence of matter is known as vacuum.
If the Universe is devoured by black holes and since black holes don't have an end does that mean the Universe never ends?
The black holes may not devour everything since the outward velocity of the matter in the universe may escapethe gravitational pull of the black holes. Stephen Hawkins reckons that even the mass in the black holes would diminish over time, though over trillions and trillions of years.