Introducing Black Hole

Black holes are probably one of the most mysterious objects in the universe. Scientists have been working on black holes. They are trying to study black holes deeper and deeper. Black holes are so massive. Black holes are massive enough that they can trap even light or your underpants without letting them escape with the help its powerful gravity. A black hole is a gravitationally collapsed enormous mass are turning into highly dense singularity. Nothing can escape from a black hole’s gravitational field, once it enters into the gravitational field or the event horizon of a black hole. A great legend, Albert Einstein, first predicted black holes, using his General Theory of Relativity (GTR).

How black holes were discovered?

In early 1915, Albert Einstein developed his theory of general relativity, having previous shown that gravity does influence light's motion. Only a few months later, Karl Schwarzschild found an answer to the Einstein field equations, which describes the gravitational field of a point mass and a sphere-shaped mass. The thought of a body so massive that even light could not escape was briefly proposed in a few words by astronomical pioneer and English clergyman John Michel in a letter published in November 1784.  

What are the types of black holes?

Black holes can be so huge, too small, tiny, and super-massive and so on, but scientists have classified black holes in three man categories according to their mass, size, and other factors. The three types of black holes are:

    1.    Stellar black hole

    2.    Super-massive black hole

3.    Intermediate black hole 

·       Stellar black hole: 

   A stellar black hole is also known as stellar-mass black hole. They have masses ranging from about 5 to some tens of solar masses. It was discovered by LIU Jifeng in China. He spotted a stellar-black hole which was 70 times more than the mass of the sun in National Astronomical Observatory of China.

·       Super-massive black hole: 

As its name, super-massive black hole comes under the black holes which has so mass or is so massive. A super-massive black hole is kind of the largest type of the black hole which contains thousands to billions of times the mass of the Sun. They are massive enough to eat the whole Solar System or galaxies like the Milky Way.

·       Intermediate black hole:

Intermediate black hole is also a kind of black hole. An intermediate black hole is a class of black hole with mass in the range 10^2 to 1^5 solar masses: much more than stellar black holes but less than the 10^5 to 10^9 solar mass super-massive black holes.

How does a black holes form?

In this universe nothing is immortal or in simple words nothing will last forever. As a star also have to die one day. A black hole is the result of a dead star. A star has a very huge amount of energy in it which converts hydrogen in to helium and continues its process until it reaches iron due to nuclear fission and fusion. The star explodes in a fraction of a second due to some super power and mysterious phenomena or super nova explosion. After explosion the star will be formed in either a neutron star or a black hole. If the mass is so high then the star will be formed in a black hole.

How does a black hole look like?

A black hole is so massive so that even the light can’t escape its gravity once it entered which makes it not possible to observe, but there are some theories which say black hole is sphere, collapsed by so many atoms. As light can return from it that is why it is said to be BLACK hole. It is surrounded by its event horizon which is also known as the point of no return.

What is inside a black hole?

Black holes are so mysterious as well as massive. Singularity is breakdown in space time. It has only one dimension. We cannot understand black hole if you don’t understand the nature of singularity. In singularity the mass and the gravity are infinite; we can’t calculate its mass and gravity in simple methods. It is a point of space time where all the laws of physics break down.

What does a black hole suck? 

BLACK HOLES SUCK EVERYTHING IN

Maybe the most prevalent myth about black holes is that they ‘suck’ matter towards them, like truly powerful vacuum cleaners. Don’t worry! They’re not going to ultimately consume everything in the universe, and you don’t need to be afraid of them … unless you plan on travelling VERY close. Why? Well, even though black holes are extreme in many ways, they don’t have endless mass—and it’s mass that determines the force of their gravity. Some black holes—known as stellar black holes—have about the quantity of mass that very massive stars do. So, just as objects can orbit massive stars without falling in, the same is true of black holes. You could cheerfully orbit a black hole forever. Once you get close enough, the story’s different, and gravity will pull you in. But that’s the same as any massive thing, like a planet or star.

What is the event horizon?

The 'event horizon' is the limit defining the region of space around a black hole from which nothing (not even light or your underpants) can escape. In other simple words, the escape velocity for an object within the event horizon exceeds the speed of light.

What if you cross the event-horizon?

Since gravity rapidly gets more powerful the nearer you get to a black hole, a person who (supposedly) travels feet-first towards a black hole could have their feet pulled faster than their head, and their sides compressed inwards. As they continue to travel towards the black hole, the effect would be amplified until they are eventually ripped into a string of individual atoms in a process called spaghettification. While scientists think that spaghettification is a real phenomenon, there tends to be a popular perception that it always happens at the event horizon of every black hole. But the point at which spaghettification happens varies, depending on the size of the black hole. For the biggest supermassive black holes, you could easily pass the event horizon without being spaghettified … and you might not even understand you’ve crossed the event horizon! According to these cases, spaghettification wouldn’t happen until you’re already well beyond the event horizon.

These are some information about black holes. Comment down some interesting facts about the black hole that I've not mentioned above.We love space, do you?