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ALL YOU NEED TO KNOW ABOUT THE BLACK HOLES


 

We all heard of bizarre things in life but nothing can be as bizarre as a black hole can get. Many people have many miss conception about black holes. Let us understand the black hole in simple words and let us know some facts about these giants in the Cosmos.

 



What is a black hole?


I want to explain this in simple words; First, we should understand what is escape velocity. It is a minimum velocity at which an object should acquire to leave a heavy body from its gravitational pull in space. for, For example, the Earth has an escape velocity of 11.2 Km/sec. if we go to the Moon it is around 2.38 km/sec and our big star sun has an escape velocity of 600km/sec, So now you can see the pattern bigger the mass larger the escape velocity, in our large vast spread universe a celestial body exists which has such a huge mass and densely packed that the escape velocity is more than 300000km/sec but at this point, even light can't escape as it has reached its limit, So that is the reason we can't see any light emitting from such bodies and We call them the black holes.

 

DIFFERENT TYPES OF BLACK HOLES

 There are mainly three types of black holes that can be seen in our universe, those are Stellar-mass black hole, Intermediate-mass black hole, Supermassive black hole

Stars having 100 solar mass turns into stellar-mass black holes, these are widely spread across our universe, these are small compare to other types of black holes but they have their significant role in wrapping space and time. but the stars having the mass of some million times of our sun turn into the supermassive black hole, these are a real monster in our cosmos. With the help of the Hubble telescope, we found out that every galaxy has a supermassive black hole at its center even our Milky way galaxy has a supermassive black hole which has a mass of 4 million times the sun.

A huge misconception about these black holes is they such everything into them, that’s not true at all if an object is out of the event horizon will orbit the black hole just like we orbit our sun. even if we had a black hole instead of our sun at the center of our solar system we would have pretty much orbited as we do now. Black holes suck everything in only when an object is near enough in its gravitational pull otherwise it is safe from the monster

Black holes are the darkest and brightest objects in the universe!!

Yes, I’m right they can be both we know that black hole stops even light to escape their gravitational pull but it is inside the event horizon when gas clouds are outside the event horizon, they orbit the black hole with a huge orbital speed sometimes these orbital speeds reach half the speed of light with that speed all friction makes the gas raise temperature to some million degrees and the disc becomes the most luminous object in the universe these are so bright that we can see them across the universe. Because of all these activities, we call them active blackholes fortunately the black hole we have in milk way is not an active one.

These brightest black holes are known as Quasar. Despite our well-developed technologies there a lot of things we still don’t know about black holes, what is inside a black hole? Are they work as warm holes to travel through space? And so on, we will be able to answer these questions as humans are capable of things that seem almost impossible.

 

 

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