Black hole is one of the most fascinating object in the universe. Astronomers who are studying universe are still in search of black hole. Nobody has ever seen it. Black hole came into existence of science when Albert Einstein published the Theory Of Relativity. And this theory got universally accepted. But no one has got even close to get a glimpse of this object.
What is a Black Hole
Black hole was predicted by Einstein in his revolutionary scientific paper of Theory of Relativity. According to this theory Black Hole is the most dense object in the universe. You just can’t imagine the density of this object. Till now no one knows what exactly is its density.
However, if you want to guess the density of this object, we can make you imagine. Imagine the size of Earth. Now if you can somehow compress this planet to the size of a pin point, then it will form a Black Hole. Just keep imagining!
All the stars in a galaxy rotates around a black hole just like all the planets of a solar system rotates around it’s parent star. We live in Milky Way galaxy. The black hole around which all the stars of Milky Way galaxy rotates can be a billion times larger than Sun. Just imagine the mass of this black hole. It is just imaginable.
Why does Black Hole trap light
Light is one of the fastest phenomena in Earth. But do you know that they can even traps light inside it. We all know that as the density of a body increases it’s gravitational pull increases. Black Holes are one of the most dense object in this universe. Due to its high density it has a gravitational pull which no other object in the universe can posses.
Every object in the universe needs to gain a escape velocity to escape from its gravitational pull. Photon is also a object but it has the highest velocity of 3 lakh km/s. But escaping from the gravitational pull of a black hole needs even more speed than the speed of light. Which is Impossible. Therefore, any light which enter it can never come out.
This leads to a fascinating fact. What ever we see is a reflection of light form that object. Now, if light never comes out from a Black Hole how can we see what’s inside a Black Hole. Therefore we will never be able to see what black hole is actually made of.
What if you fall into a Black Hole ?
Now that we know what it is. We can get a deeper insight of this amazing object. Now the only way to see what is lying inside a black hole is to get into it. Well after knowing so much about it you will never want to get into a Black Hole. But just consider somehow you got into the influence of its gravitational pull during your interstellar mission. Then what will happen?
Even scientists do not know exactly what will happen. But if you believe the mathematics, astronomer have predicted what may happen to you. Fist of all if you somehow fall into it, your velocity will start increasing at a tremendous rate. In just a few seconds you will reach the speed of light.
We all know that gravitational force depends on the distance. As the distance decreases the force increases and vice verse. When your velocity was small that means you were on the outer part on that black hole, and at that time your height can’t be considered for the difference of gravitational pull on your head and toe as the distance is too much. But when you will attain the speed of light, your height will be considerable and you will feel that the body part which is closer to the black hole is experiencing greater force in respect to the body part which is away from the black hole.
What will happen to your body ?
This uneven force will cause your body to stretch and your height will increase and your width will decrease. Now imagine! Your height is increasing and you are becoming thiner. This process will continue until a time will come when due to uneven forces on your body your head will pop out. You may ask me why your head will pop out first and the answer is simple. Neck is one of the delicate and weak part of your body and when a large force will be exerted on your head respective to the rest part of your body. It will be torn apart. Definitely you will experience travelling at the speed of light but sadly you will not be alive to share that experience to anyone.
This doesn’t come to an end here. Now what will happen?
Your body has split into two and you are travelling at the speed of light. And time has frozen for you. Then you will come across the event horizon and you will start travelling in singularity where density is infinite and space time has been curved infinitely.
After that what will happen? No one knows.
Maybe you will came to life again or your body will travel into another universe. Or maybe you will become a part of a black hole.
You can also read about Planet Nine which is going to be the 9th planet of our solar system.