The mysteries of a black hole

in #science11 months ago

The black holes have been the most important thing in the mysteries of the universe and are the most researched. A black hole is actually a star in its past, like our own sun. Their lives end in a powerful explosion and then new stars are born which is also a signal of their birth.

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When stars run out of fuel (hydrogen, helium), there is a lot of pressure at their center, which destroys the star's outer membrane. The stars become white or blue dwarfs as a result of atomic radiation, and there is a possibility that instead of becoming dwarf stars they explode with a huge explosion which emits a great deal of light. This is called a supernova. The amount of matter left in stellar birth nurseries increases to such an extent that it cannot normally be the final destination of a neutron star and it shrinks drastically, increasing the density of its remaining ash or debris dramatically.

Here, the border "event horizon" becomes the place where everything that comes is trapped, even the light has no power to escape from here. According to the law of motion, it has become a complete black star or 'black hole' which has immense power to pull, absorb or consume itself.

The modern term 'black hole' was coined by the American astronomer John Wheeler in 1969. It was conceived 200 years ago by the English scientist John Michell in 1783. The last five years have seen tremendous advances in black holes.

Stephen Hawking's new proposal in 2015 now raises the possibility of resolving the 50-year-old puzzle of the "Black Hole's Lost Information Paradox". His new theory has shocked the world and has become a hot topic for physicists.

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Hawking had said about the challenging theory of black holes that, 'if you feel like you are in a black hole, you can't get out of here, escape from there is impossible.' Hawking said: "If a body falls into a black hole, it is possible to escape from it, but the falling traveler is not capable of returning to the universe, but he can reach another universe which can be just like our universe."

If Stephen Hawking was right, this would be the most different view of a black hole ever. The center of the black hole emits radiation from the "nucleus" and is known as "Hawking's radiation" which has been a major focus of Hawking's research on which he rightly deserved to win the Nobel Prize.

In the same year, 2015, great progress was made with regard to black holes, and a hundred years later, Einstein's theory of gravitational waves and the theory of relativity became possible. These waves are just like the radio waves called electromagnetic. Einstein was convinced that these waves could travel in the form of gravity. These are very energetic waves that emanate from the massive collision of two black holes in the universe. Newton's law considers gravity as a force that acts between two cosmic bodies and attract each other.

The nature of gravity has changed dramatically with the advent of the theory of relativity. When two large black pits of large size collide in the universe, this process produces special energy. Wherever these waves originate, the motion of all the astronomical objects there increases.

According to Hawking Radiation, black holes shrink when they release all their energy. Black holes are not as black as shown in the pictures. EHT has not yet confirmed or denied Hawking's theory.

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It is hoped that by June and July, an incredible cosmic discovery mission will be launched which will surely add immensely to our cosmic knowledge and for us, the "James Webb Telescope" is an important milestone in unraveling the ancient entanglements of the universe and mysterious objects.

Thank you for reading! Stay Safe!👋😌

Reference:

1- https://www.science.org.au/curious/space-time/black-holes

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The launch of IXPE, an X-tay space telescope launched by NASA and the Italian Space Agency was a bit eclipsed by JWST, but I am sure will help a lot to understand a bit better black holes. It is good news because other space X/R observatories like XMM or Chandra start to be a bit old.

By the way, have you heard of LISA? It is a set of three spacecraft that will be the equivalent of the LIGO project used to detect gravitational waves, but in space.

Hello @munawar1235

I will be honest, I'm not space expert or anything and I always have doubts about space and the discovery of it since it always seem like something that's very hard to study especially that humans themselves usually aren't the ones sent directly to explore. Thinking about the blackhole, it's been a real mystery to think of it, but we've always used to hear about it since our childhood, so I wonder what kind of new information might be reveled about it soon.

Thanks for sharing!