Which is the most deadliest Super Giant Monster in the Universe? Is it Black Hole?

The Giant Monster in the Universe.... 

#THE BLACK HOLE

 

What is BLACK HOLE? Is it really BLACK?

The idea of a body so massive that even light could not escape was firstly proposed by Astronomical pioneer and English clergyman John Michell.
The BLACK HOLES are the most fascinating and mysterious object in the universe, every human being heard the name of the black hole many times.
The first person to formulate BLACK HOLE mathematically was German mathematician KARL SCHWARCHILD in 1916.The term BLACK HOLE was coined by the theoretical Physicist JOHN WHEELER in 1967.viz by Nat -Geo;

The BLACK HOLE is a region in space where pull of gravity is so much intense that even the fastest moving entity in the universe or electromagnetic radiation (more generally light whose speed is 3×10^8 m/s) can not escape when it come in the ambit of it's EVENT HORIZON. The event horizon is the space region outside of the Black hole which demarcates the boundary after which everything even the fastest moving light get swallowed into the super giant monster which we call The Black Hole.
Because no light can get out of it, people can't see the black hole and it totally appears dark to the human eye who has only a capacity to see a very small band of the ELECTROMAGNETIC SPECTRUM i.e. the visible light ( Wavelength-380nm - 740nm ). They are visible to us only with the help of Giant Space Telescope which are supplemented with special tools.

How are they formed?  

To understand how BLACK HOLE might be formed, we first need to understand the life cycle of a star.
A star is formed when a large amount of gas (mostly hydrogen) starts to collapse in on itself due to it's gravitational attraction. As it contracts the atoms of the gas collide with each other more and more frequently and at greater and  greater speed--the gas heats up.The Chandrasekhar limit says that a cold star of more than about one and a half times the mass of Sun would not be able to support itself against it's own gravity.This had serious implications for the ultimate fate of massive stars. Eventually, the gas will be so hot that when the hydrogen atoms collide they no longer bounce off each other, but instead coalesce to form helium. The heat released in this reaction , which is like a controlled hydrogen bomb explosion, is what makes Stars SHINE.
Star will remain stable up to when the nuclear reaction balancing the gravitational attraction. Eventually the star will run out of it's hydrogen and the star collapses.
The most well-understood Black Holes are created when a massive star reaches the end of it's life as told earlier and implodes collapsing itself. It is said that when the massive star dies out after it's life, it brightens it's surrounding with it's sheer light. When a star burns through the last of it's fuel, the object may collapse fall into itself.
For smaller stars(those up to above 3 times the Sun's mass), the new core will become a Neutron star or White dwarf. But when a larger star collapse, it continues to comes and creates a Stellar Black Hole whose mass is compressed and concentrated into acting point of infinite density. This point is known as SINGULARITY. 

Types of Black Holes? How powerful are they?

The categorisation of Black Hole has been done on the basis of it's mass namely-

1.Super-massive Black Hole
Mass-10^5 - 10^10 times the mass of Sun
2.Intermediate-mass Black Hole
Mass- about 10^3 times the mass of Sun
3.Stellar Black Hole
Mass- 10 times the mass of Sun
4.Micro Black Hole
Mass- mass is up to moon
The Solar mass is the standard unit of mass in Astronomy and 1 Solar mass unit equals to approx.  2×10^30kg which is about 333,000 times  the mass of Earth and 10470 times the mass of Jupiter.
With such a huge mass we can very well imagine how intense the pull of gravitational force would be, with such a massive pull of gravity into ENTRANCE TO HELL anything can be swallowed even the Earth but we the habitants of the Earth are very much fortunate that we are not nearby any Black Hole otherwise sooner of large it would swallow us. Viz-by Ted-Ed;

SAGITTARIUS A*, at the center of the Milky Way is the closest Super-massive Black hole, some 25000 Light-year distant.
1 Light year = 9.46×10^12 Kilometres

What  is Black Hole Radiation and Thermal Radiation?

Black hole radiation or HAWKING RADIATION is a radiation theoretically emitted from just outside of the event horizon of black hole.
The theory behind Black hole radiation is that the sub-atomic particles pairs ( photons, neutrinos and some massive particles) arising naturally near the event horizon, may result in one particle escaping the vicinity of black hole while other particles of negative charge disappear into it as a blast of radiation.
The black hole radiation temperature is inversely proportional to it's mass and also reduces the rotational kinetic energy of black hole. Viz by Core Explore;

Thus Micro  black holes are expected to be large emitter of radiation than more massive black holes.
Thermal radiation is electromagnetic magnetic radiation generated by thermal motion of particles of matter.
The Black hole radiation or HAWKING radiation is emitted even when the most Massive black holes in the universe are at temperature of about 1.4×10^-14 K, but thermal radiation is emitted only with a temperature greater than absolute zero.
The main difference between the black hole radiation as computed by HAWKING and thermal radiation emitted from a black-body is that the latter is Statistical in nature and only it's average  satisfies what is known as Planck's law of Black body radiation, while the latter (HAWKING radiation) fits the data better.
Also, the loss of energy lowers the mass of the central Black hole eventually leading to total Evaporation, but Black hole radiation is an incredibly slow process whereas thermal radiation is not a such slow process. The decrease in mass of body with thermal radiation is negligible.
The Black hole radiation is such a slow that a Black hole of the mass of Sun would take about 10^67 years to evaporate. 

"BLACK HOLES ARE THE SEDUCTIVE DRAGONS OF THE UNIVERSE, OUTWARDLY QUIESCENT YET VIOLENT HEART" 

        -----Robert Cooper, A Child Again