What's inside a black hole?



<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "You know all these images of black holes" We saw books online or in your high school astronomy textbook. These are all illustrations. These are just misrepresentations of what scientists thought they looked like based on their calculations. Black holes were part of it. mysteries of science that no one has understood. This is why the recent publication of the very first real image of a black hole, located in the galaxy M87, is so important: it is the first direct evidence, by observation, of the existence of black holes. "It is simply inspiring to have a real picture of this amazing object that we had previously only seen in diagrams, simulations and equations," said astrophysicist Benjamin Monreal, PhD, Associate Professor of Physics at Case Western Reserve University. "data-reactid =" 22 "> Do you know all these images of black holes that you saw online or in your high school astronomy textbook? These are all illustrations, they are just false representations of this Scientists thought they looked Black holes were one of those scientific mysteries that no one understood, so the recent publication of the very first real image of a black hole, located in the galaxy M87, is so important: this is the first direct and observational proof that black holes exist. "It's simply inspiring to have a real picture of this amazing object that we had previously only seen in diagrams, simulations and equations, "says astrophysicist Benjamin Monreal, PhD, Agnar Pytte Asso, professor of physics at Case Western Reserve University.

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "But that brings us to the next question: What is in a black hole? In attempting to answer this question, we must first explore some astronomy facts that you have never learned at school."data-reactid =" 23 "> But that brings us to the following question: What's inside a black hole? To try to answer this question, we must first explore facts about astronomy that you have never learned at school.

<h2 class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "What's a black hole?"data-reactid =" 24 ">What's a black hole?

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "Although everyone knows the term, most of Between us (who are not astrophysicists) might not know exactly what is a black hole. "A black hole is such a massive object that its extreme gravity pulls everything, even the light, inward," says Monreal. Still confused? Think of a bowling ball on a trampoline: this creates a big depression in the middle, so if you throw balls on it, they will fall. Black holes similarly distort the space and time that surrounds it (called space-time together). "From a black hole, even the speed of light is not enough to escape," Monreal says. "The space is so distorted that the only direction is down." That is why they are "black" or rather invisible: no light can escape us to see them. "Data-reactid =" 25 "> Although everyone knows the term, most of us (who are not astrophysicists) might not know exactly what a black hole is." Black hole is such a massive object that its extreme gravity makes everything, even the light, fall in, "says Monreal," Still confused? "Think of a bowling ball on a trampoline: it causes a big depression in the middle if you throw balls on them, they will fall in. The black holes distort the space and time around it (together, space-time) in the same way. "From a black hole, even the speed of light is not enough to escape, "says Monreal. The space is so distorted that the only direction is down. "That's why they are" black ", or rather invisible: no light can escape us to see them.

<h2 class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "How do you make a black hole?"data-reactid =" 26 ">How do you make a black hole?

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "OK, but exactly what is a black hole? "Black holes start when ordinary matter is squeezed into a small enough volume," says Monreal. For example, when large stars run out of fuel, they collapse under the effect of gravity, creating a black hole. "The black hole of the M87 that we have this new image is probably formed of huge clouds of hydrogen that have collapsed," says Monreal. "Data-reactid =" 27 "> OK, but exactly what is a black hole? "Black holes start when ordinary matter is squeezed into a small enough volume," says Monreal. For example, when large stars run out of fuel, they collapse under the effect of gravity, creating a black hole. "The black hole of the M87 on which we have this new image is probably formed from huge clouds of gaseous hydrogen that have collapsed," said Monreal.

<h2 class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "What's inside a black hole?"data-reactid =" 28 ">What's inside a black hole?

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "Although the black holes themselves can not be seen , the scientists knew that they were there because of the way other objects such as the stars act around them; these objects in the security zone are not fired but are still affected by its force. In contrast, the material exceeding the point of no return, called the event horizon, can not escape the black hole. Imagine her as if she were crossing a waterfall in an abyss. "Data-reactid =" 29 "> Although black holes themselves can not be seen, scientists knew that they were there because of the way other objects such as stars act around them, these objects in the security zone are not trained but are still affected by its force., the material that exceeds the point of no return, called the event horizon, can not escape the black hole, imagine her as if she were crossing a waterfall in an abyss.

But scientists are still trying to understand what will happen once the case has been dealt with. basically, which is inside a black hole. "Once the hydrogen [from the collapsed star] came in, the theory of gravity told us that she had become a "singularity" in the center, and no one really knows what it looks like. Even if it's certainly not hydrogen anymore, "says Monreal," so the inside of a black hole does not look like it would be cinema. "Between the horizon of events and the singularity, There is nothing but an empty space, subject to extremely powerful gravitational fields, "explains Monreal.

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "What happens to the elements that fall into black The phrase "black holes do not have hair" describes the theory that information thrown into black holes disappears from outside observers and can not be measured.The famous physicist Stephen Hawking thrown a key suggesting that part of the mass might actually "run away" or be released by the black hole as it dies – which could even contradict the prevailing theory of gravity. Hawking was working on that idea until his death last March, with his last paper on the subject published by his colleagues in December 2018. "data-reactid =" 31 "> There is still debate about what is happening in the black hole The sentence" Black holes do not have hair " describes the theory that information thrown into black holes essentially disappears in the eyes of outside observers and can not be measured.The famous physicist Stephen Hawking threw a key in hand, suggesting that part of the mass might actually "run away" or be released by the black hole while he's slowly dying Hawking was working on this idea until his death last March, with his latest article on the subject published by his colleagues in December 2018.

<h2 class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "What's the new picture can tell us about what's inside a black hole?"data-reactid =" 32 ">What's the new picture can tell us about what's inside a black hole?

<p class = "canvas-atom-canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "The new image M87, which is not A photograph, but rather a compilation of data from eight observatories around the world, called Event Horizon Telescope, provides the first evidence to corroborate or contradict black hole theories. "Astronomers studying galaxies are eager to know masses and rotation rates of black holes, and they have developed indirect methods to deduce these figures – these methods now have a very accurate reality check, "says Monreal." Physicists who want better tests of Einstein's gravity theory – or who are looking for evidence of the collapse of this theory – will want to know which theories have been able to account for the details of this picture. "In this picture, the bright rings are the accretion disk, a mass of gas in orbit just before the event horizon.The black space in the middle is" shadow "of the black hole; that there is no light, we can not see inside the hole itself.Now, by examining the measurements and details of the picture, astrophysicists will have more information than ever before to help us understand how they work – so that black holes are no longer one of the the most confusing mysteries of the universe. "data-reactid =" 33 "> The new M87 image, which is not exactly a photo, but a compilation of data from eight observatories around the world, collectively called the Event Horizon telescope, provides the first evidence for to corroborate – or contradict – "Astronomers studying galaxies are hungry for knowledge about the masses and rotational speeds of black holes, and they have developed indirect methods to derive these numbers – these methods now have very accurate verification of reality, "says Monreal" Physicists wishing more and more tests of Einstein's theory of gravity, or seeking evidence of their breakup, will want to see what theories have been able to account for the details of this picture "The bright rings are the accretion disk, a mass of gas orbiting just before the event horizon." The black space in the center is "the shadow of the black hole"; do you go, because there is no light, we can not see inside the hole itself. Even so, by examining the measurements and details of the image, astrophysicists will have more information than ever before to help us understand how they work – by making black holes one of the most disconcerting mysteries of l & # 39; universe.


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