The Strangest Black Holes In The Universe!

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Published on September 14, 2020 12:32:00 PM ● Video Link: https://www.youtube.com/watch?v=mnQ0O3UuGpQ

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You all must have come across the term Black Hole. But do you know what exactly a Black Hole is? Black holes are objects that are so dense that not even light can escape their gravity, and since nothing can travel faster than the light, nothing can escape from inside a black hole. To put it in simple words, Black hole is an object so dense that not even light can escape its surface. Have you ever wondered if light can’t escape a black hole, how can we see black holes?
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Well, nobody has ever seen a black hole, not even astronomers. They don’t see the black hole instead, astronomers observe the presence of a black hole by its effect on its surroundings because a black hole by itself is very difficult to detect anywhere in our galaxy. Black holes are formed when the centre of a very massive star collapses in upon itself. This collapse also causes a supernova, or an exploding star, that blasts part of the star into space. Its size depends upon the size and mass of the galaxy it is in.
Now let’s dive a little deeper and know more about some very interesting black holes observed till date.
The most-hungry black hole in the universe is the black hole J2157. It has the fastest growth rate observed and one of the most-heftiest black holes ever discovered. According to the latest research, it clarifies how much “food” it needs to maintain its growth rate and the numeric data will give your head a spin! The black hole J2157 has 34 billion times the mass of the Sun, and engulfs every day almost the equivalent, in mass, of our mother star. J2157 has turned out to have an appetite to match its tremendous size. It is one of the largest black holes known to humans and was discovered back in May 2018. This black hole is not only the fastest-growing black hole in the universe but also the most luminous black hole ever recorded. As per the latest research, if this black hole was at the centre of the Milky Way, it would have appeared in Earth’s skies 10 times brighter than the full moon. This black hole would appear as an astonishingly bright pin-point star that would outshine all the other stars in the sky, and then life on Earth would be almost impossible because of the emission of X-rays from the black hole. Black holes grow by swallowing and absorbing the surrounding materials, but their mass places a limit on the amount of “food” they can absorb, because, in order for them to swallow gas and dust, their gravity must be able to contrast the external pressure produced by the light emitted by their meal. While light can’t escape from black holes, this black hole emits X-rays and ultraviolet light that are created because of its enormous appetite, because of which we know J2157 as the most luminous known quasar. Quasars are the giant black holes in galaxies that emit so much energy through their gaseous disks that they appear like stars through telescopes. J2157 is feeding itself like a gigantic i.e. 40% faster than the maximum limit rate a black should be able to do so.
Another interesting black hole in our list is the biggest black hole in our universe in which appears to be that of M87. All large galaxies are thought to harbour supermassive black holes at their hearts that contain millions to billions of times the mass of our sun. Until now, the largest black hole known as a mammoth dwelling in the giant elliptical galaxy, Messier 87. This black hole has a mass 6.3 billion times that of the sun. But the new data suggests that one galaxy, known as NGC 3842, the brightest galaxy in the Leo cluster of galaxies which is nearly 320 million light years distant, has a central black hole 9.7 billion solar masses large.
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