How will we be able to see black holes and photographed for the first time!

black holes! What a magical and truly mysterious entity! Fortunately, it is black ... The black color is more ambiguous of course! Imagine with me if it was red, or ... but one moment! Are they really black? We divide it by black because it absorbs everything, including all visible color spectrums, and because it is not visible to us, either, it is "dark" without a color or visible spectrum that can be distinguished by direct observation.

But even if it has a clear black color, do you think we can see it or see its true image thousands of light years ago? Let us even from the deceitful black holes, and speak of something as close and clear as the sun ... Protect, but the sun is actually! Do you think the sun is yellow as it should be? Or even red as we see it in pictures or movies? In fact, the sun may look yellow, orange or red because its short-wave colors, such as green, blue, and violet, are scattered in our atmosphere, so that only red, yellow, and orange reach us. What color is the sun? Mix all colors of course! That is, the color of the sun is bright white without a certain color, we are talking again about the color of the sun there, in the dark space is cold and cold!

If the definition of the color of such proximity and magnificence and integrity as the sun is difficult for us, what about those dark, shaky, more complex and like black holes? It is no wonder then that we have not yet been able to portray or even imagine it so far. But this may change forever in April when the Event Horizon Telescope (EHT) tries to capture the first image in our modern human history of a black hole and a skyline!

It is not trying to take a picture of any black hole; it is a very distinctive hole for us: Sagittarius Sagittarius Sagittarius, that monster that lies at the center of our Milky Way galaxy! The EHT observatory will spend about 10 days collecting data, but the true picture of the black hole will not be ready to be viewed until fully analyzed and processed, which will take from the most powerful and fastest computer in the world until 2018 to achieve this! There is no need to be discouraged at all here. It is not as simple as it may seem at first sight as we will see in the next lines!

How does the Horizon Telescope (EHT) work?

The EHT observatory does not consist of one telescope in one, but is closer to what can be "combined" or "collaborated" by a number of radio telescopes around the world and connected together to function as one much more powerful observatory. To observe something as eloquent and as big as a black hole, we either have to build a massive continent-sized radio telescope, which is impossible, of course, or connect our telescopic telescopes to work together as one entity! Which was already with the EHT Observatory, with bright names in astronomy and monitoring, such as the Atacama Large Millimeter Array (ALMA), the South Pole Telescope (SPT) and the very-long-baseline-interferometry (VLBI) observatory. Thus, we have a gigantic observatory the size of our own planet!

This frightening power of the EHT observatory is absolutely necessary and justified when we deal with the Sagittarius A Sagittarius A black hole. Although its mass is about 4 million times that of our sun, it is only 20 million km in diameter. So, about 26,000 light-years from Earth, this black hole looks so small it's hard to spot it in its really huge size!

In order for the EHT Observatory to work with the accuracy required, each participating telescope is calibrated through an atomic clock that accurately adjusts its time by one trillionths of a second every second!

As you can expect, the EHT observatory will receive fantastic amounts of data at every moment; it is equipped with an army of hard drives, which will be flown to MIT's Haystack Observatory to process data it contains, Computer is like a supercomputer consisting of 800 CPUs working at once!

As you can see, what will we see after analyzing data? This depends entirely on three of the most famous names in the physics of modern times ...

Einstein, Schwarzschild, and Hawking!

What we will eventually see when we finally get that magical picture is actually based on what Einstein and Schwarzschild and what Hawking followed recently about black holes.

As gas and dust formations approach a black hole, they are accelerated by their attractiveness. Let me tell you that it does not speed up a little, but very much relentlessly to die with enthusiasm! This acceleration makes it release more energy, which we can observe and see. This is what you see as a cascade of light in the picture above, while the black bubble in the middle is the black hole that you throw at the light of the energy being released. You can re-read the last paragraph to understand its structure and meaning exactly ...

Einstein did not predict exactly the existence of black holes, but his theory of general relativity is what indicated its existence. The general relativity predicted that super massive stars could flex or fold the space-time fabric enough not to escape its lurid appeal to the light itself. Do not forget here that the black hole in the end just a star collapsed on itself, do not be surprised by the word supernumerary former stars because it is synonymous with nothing more than the black holes. And here comes the role of one of the contemporary scientists of Einstein, Carl Schwarzschild to explain how the black hole really works.

Schwarzschild was the first to say that based on Einstein's equations, the black hole would have the so-called event horizon. We can describe the event horizon as the nearby area.

As gas and dust formations approach a black hole, they are accelerated by their attractiveness. Let me tell you that it does not speed up a little, but very much relentlessly to die with enthusiasm! This acceleration makes it release more energy, which we can observe and see. This is what you see as a cascade of light in the picture above, while the black bubble in the middle is the black hole that you throw at the light of the energy being released. You can re-read the last paragraph to understand its structure and meaning exactly ...

Einstein did not predict exactly the existence of black holes, but his theory of general relativity is what indicated its existence. The general relativity predicted that super massive stars could flex or fold the space-time fabric enough not to escape its lurid appeal to the light itself. Do not forget here that the black hole in the end just a star collapsed on itself, do not be surprised by the word supernumerary former stars because it is synonymous with nothing more than the black holes. And here comes the role of one of the contemporary scientists of Einstein, Carl Schwarzschild to explain how the black hole really works.

Schwarzschild was the first to say that based on Einstein's equations, the black hole would have the so-called event horizon. We can describe the event horizon as the nearby area surrounding the black hole and no one outside can notice what is going on inside it at all, that is, inside the black hole. The horizon of the event is called the "point of no return". When it exceeds that horizon, it will not escape the attraction of the black hole ... The light itself can not exceed the horizon of the event, so it is trapped inside it and the black hole remains black.

So I do not hope to see a picture of the black hole! But here comes Hawking's role in the 1970s to predict what became known as Hawking Radiation, the radiation of the black hole ... the only thing that comes out of those horrific entities. So you can see how the three former greats worked together to figure out how the EHT observatory would handle the data coming to us across millions of miles to form the first black hole image.

What is interesting here is that the picture we will eventually have to agree with the equations of general relativity! The picture should show what we expect it to show in the end. Otherwise, something is wrong with Einstein's theory, which has been proven to be true by direct and indirect monitoring over and over again. Not only that, any sudden image or contrary to our expectations or imagine what the black hole looks like means that we do not understand gravity as it should ... or we do not understand it at all!

There is a common proverb among physicists: "It is never wise for Einstein to bend or bet on his mistake." Science has proven the validity of what he has said time and time again. But is Einstein holding another round close? Unfortunately we will have to wait until 2018!