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*While this is the currently the accepted answer by society, in truth no one knows what gravity truly is. The term "force" is a generalization used to define what they do not understand.
Addition:
There is a theory that gravity is made up of massless, uncharged particles called "Gravitons". This theory isn't widely accepted because gravity doesn't work on a small atomic scale. The theory is called Quantum Gravity.
Black holes in science fiction movies are giant, black holes that rotate like a circular saws inwards.
The things that we observe as quasars are believed to be caused by huge black holes.
Most black holes are stellar mass black holes with masses comparable to those of large stars as they form from the collapse of massive stars. Scientists know of the existence of supermassive black holes that are millions to billions of times the mass of our sun and can be found in the centers of most galaxies. Scientists still do not know how these black holes become so massive.
X-rays are the best band for studying black holes as the radiations emitted by the black hole is X-rays so we can expect the presence of a black hole anywhere in the Universe.
No. They do not have enough mass to become black holes. Depending on the mass they will either become white dwarfs or neutron stars.
No. It certainly has black holes, but it has other things as well.No. It certainly has black holes, but it has other things as well.No. It certainly has black holes, but it has other things as well.No. It certainly has black holes, but it has other things as well.
Black holes (in the astronomical sense) have never been made in the laboratory.
2010
He did not. He made some theoretical discoveries about how black holes would probably behave; but the concept of black holes was discovered by others before him.
Black holes are not made up of dark matter. Dark matter is a mysterious substance that makes up a large portion of the universe's mass, but black holes are formed from the collapse of massive stars.
Black holes are made up of a super dense core called a singularity, surrounded by an event horizon. The singularity is thought to contain all the mass of the black hole, but it is not made of matter as we know it. Instead, it is a point of infinite density where the laws of physics break down.
Most likely in the University classroom as an undergraduate student, that's where most people of his generation learned about black holes. But of course what he learned about was ordinary stellar black holes.It was much later when he made his own "what if" hypothesis on microscopic black holes. After solving the equations of general relativity for this case and including the effects of quantum mechanics, he made his theory including Hawking Radiation, evaporation of black holes, and their eventual explosion. This remains theoretical, as his black holes have still not been observed.
stellar black holes were stars (these are large)primordial black holes were pieces of the big bang (these are microscopic)
Black holes are not composed of matter, and do not have a chemical formula.
Black holes do not die but they can evaporate.
Black holes
There are no black holes in our solar system