A black hole is one of the most mysterious objects in distant space and is the focal point of interest for modern space researchers and modern physicists. Regular research is underway on the exceptional nature of the black hole and its many unknown facts. There are hundreds of mysteries surrounding the black hole. Work is constantly underway to solve all these mysteries. Hopefully, researchers now have more important information and ideas about black holes / black holes than at any time in the past. Although not fully known, researchers have a good idea of how a black hole / black hole works from the center of the galaxy and what its structure and effects are.
However, the need for more detailed research into the properties of the mysterious black hole reached a unique milestone when researchers first published a picture of the black hole in the center of the Messier 87 galaxy on April 10, 2019. That first human civilization saw images of a real black hole / black hole, which was about 26,000 light-years from Earth. Again, on May 12, 2022, the first real picture of the Sagittarius A black hole in the center of our Milky Way galaxy was released, which was another unimaginable achievement for astronauts. After seeing the real picture of the black hole located so far away, surely many people are curious, how the real picture of the black hole located far away was taken?
Let's find out then.
A special type of telescope, called "The Event Horizon Telescope" (EHT), was used to capture the black holes at the center of the Messier 87 galaxy and the Milky Way galaxy.
Naturally, we know that light is needed to take pictures of an object, and when light from an object falls into the camera lens, then it is possible to take pictures. But what we're talking about here is a black hole, which wipes out everything around its sphere of influence - not even light from the sphere of influence of a black hole! If there is no light, how can you take a picture?
Interestingly, there is a giant ring of charged/charged gas/particles around the black hole. The name of this circular area is Event Horizon. And this charged/charged particle/gas creates a huge magnetic field around the black hole. This magnetic field / magnetic field always emits a kind of wave, which is actually a characteristic radio wave. And a total of 8 powerful radio telescopes were installed in 6 different regions of the world to detect these radio waves. With the help of which the black holes were photographed. This image of a black hole is not an ordinary image, but rather a collection of radio waves identified over a long period of time, which, when analyzed together, can be made into images that are suitable for human comprehension.
Combining radio wave observations captured by radio telescopes from every observatory in different parts of the world, a team of about 200 researchers had to record the time very accurately and precisely to obtain image information. For this, the researchers used the hydrogen messer atomic clock, which loses about one second every 100 million years.
The data was then transferred to the MIT Haystack Observatory and the Max Planck Institute for Radio Astronomy in Germany for processing on a special type of supercomputer called a correlator. Later, the information from the radio waves was combined to form the pictures of the amazing black hole that was published.
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