- 1 What is the Blackhole?
What is the Blackhole?
most people would like to know what is the blackhole. Blackholes are a very common concept of the existence and nature of a universe. We discussed here black hole and history of black hole, you will also get more information about the biggest black hole in the universe. The reason behind naming the black hole is that it absorbs all the light rays coming towards it.
No point of light can return from the blackhole. According to this idea, a blackhole is an object in the universe that is so densely embedded or so small in mass that its gravitational force does not allow anything to come out of it, not even electromagnetic radiation (e.g. light). The value of the ordinary gravitational ball in this place becomes so high that it surpasses all other balls in the universe. As a result, nothing can escape from the blackhole.
Biggest Black Hole in the Universe
A black hole is an object of massive mass that cannot escape the effects of gravity until light waves. The geologist John Michell has first discovered this idea. In 1896, mathematician Pierre Simon Laplace gave the same theory in the first and second editions of his book, ‘’Exposition du Systeme du Monde’’. In 1918, Einstein came up with the idea of a ‘’general relativity theory’’ and said that black holes could exist. And in 1994, astronauts proved that there are black holes. This is not science fiction, but the German scientist Karl Schwarzschild showed in 1917 that any star could turn into a black hole.
This universe was created by a huge explosion. Its age is about 13 to 15 thousand crore years. The current location of the universe with about ten trillion galaxies created from the Big Bang. These galaxies are again made up of thousands of stars. One such galaxy is the Milky Way or the Milky Way. The Milky Way galaxy is thought to have about 20,000 billion stars. The Sun is one of these 20,000 billion stars. At the center of which we are alive. All the animals and plants on earth are alive.
Every star in every galaxy is illuminated in its light. Which of these stars has a different colored light, which has a different spectrum? When we see this light we think that the stars are shooting and extinguishing. They feel like the bullets are burning because they are not stable. The ones that seem to be burning and extinguishing are the stars and the ones that seem to be stationary are the planets or satellites. New stars are constantly being born in the universe. So it is really difficult to get an accurate calculation of all the stars. However, all scientists think that all the stars are round like football. Assume that Ton 618, is the largest ultramassive black hole in the universe.
How was the Black Hole Created?
The history of the birth of the black hole is much like a poem. A blackhole is created from a death star. According to scientists, the smallest black hole was born at the time of the birth of this universe. When a star runs out of hydrogen fuel then it dies. As long as its internal hydrogen gas remains, the nuclear reaction inside it continues. When hydrogen is depleted, its central core begins to shrink. Thus a star dies.
Black holes have strong gravitational fields. Every blackhole has a boundary around it that once entered and it can no longer exist. In this way, the blackhole has survived as a marvel of space. This is the constant practice of science. So there is no end to the curiosity about this space monster swallowed by light. Blackholes have three main levels such as
- Outer Event Horizon
- Inner Event Horizon
The event horizon here is the boundary of the black hole. Light cannot come out of it and gravity is constant here. And the region in which all the elements have mass is called a singularity. Scientists do not see blackholes the way they see planets, stars, and other matter in space, but they do exist through radiation.
How Big is Black Hole?
There are different kinds of blackholes and blackholes can be small or large. According to experts, the smallest blackhole can be the equivalent of an atom. These blackholes are very small but the mass of each blackhole can be equal to a heavy mountain. Another type of blackhole is called a “stellar” mass about 20 times the mass of our Sun.
There are many more massive stars in Earth’s galaxy. And this galaxy of the earth is called ‘’Milkyway’’. The largest blackholes are called ‘’supermassive’’. The blackhole is divided based on its mass, charge, and angular momentum. There are four types of blackholes based on mass such as
- Super Massive Blackhole
- Intermediate Blackhole
- Micro Blackhole
- Stellar Blackhole
Can Blackholes Destroy the Earth?
A black hole does not travel so close to space at all that it can prey on any star, moon, or planet. And the earth will never fall into a black hole. Because no blackhole but the earth is not so close to the solar system. If a black hole of the same mass as the Sun was replaced by the Sun, the blackhole would not be able to absorb the Sun.
The mass of some blackholes may be equal to that of the sun. But even then, Earth and other planets will continue to revolve around that blackhole. As before! Thus, it appears that the blackhole has not yet brought any threat to us and is not expected to destroy the earth shortly.
Blackholes are called space monsters. Blackholes are the most mysterious thing in this universe. And scientists are constantly behind this mystery and hopefully, one day this mysterious blackhole will gradually emerge from the web of mystery. Then a lot of things might be explained that we are looking for now. Blackholes are not a cause of destruction for us as well as for all creatures.
Almost everything in this universe is mysterious. And blackholes are one such thing. We still don’t know much about blackholes. Many people have different ideas about this, but they have not been proven yet. But scientists are constantly trying to solve the mystery.
What is the Fact of Milky Way Galaxy?
Our galaxy, our solar system, is a part of this galaxy. It is a spiral galaxy and it has six spirals. Until 1920, people thought that there was only one galaxy in the universe. But then scientist ‘’Edwin Hubble’’ said that there are many more galaxies in this universe besides our galaxy. The galaxy around the Milky Way is called Andromeda Galaxy.
The Milky Way galaxy is approximately 100,000 light-years (9 * 10 ^ 17 kilometers). It is estimated that there are at least 200-400 trillion stars in this galaxy. Earlier it was thought to have a rotational speed of about 220 km per second. According to recent research, about 600 km per second. As a result, the total mass of the Milky Way has been calculated to be about 3 trillion solar masses, which is almost double the previous estimate.
Determining the age of the Milky Way is extremely difficult. The oldest star in this galaxy is HE 1523-0901, about 13.2 trillion years old, about the same age as the universe. It is thought that the Milky Way galaxy began about 7.5 to 10.1 trillion years ago. Earth is located in a part of the Milky Way galaxy. This galaxy looks like a light white cloud extending from one end of the clear sky to the other at night. The Milky Way galaxy cannot be seen from the city or from places where there is too much light as it looks very light.
How was the black hole born?
A black hole is a place where a lot of mass is concentrated in a very small space. So much so that nothing escapes it, not even the highest speed light. There are stars or constellations in the universe that create such a powerful gravitational force that it pulls absolutely any object that comes close to it, be it a planet, a comet, or a spacecraft, is a black hole. Physicist John Wheeler named the black hole.
These stars have unusual shapes, masses, and densities, and for this reason, the light emitted from these stars cannot come out. Simply put, when a star’s lifespan is over, its gravitational force is so strong that light cannot escape. And this happens when a star’s lifespan, that is, its specific fuel, is exhausted. The star turned into a black hole. This is how a black hole is created. This black hole is an eternal wonder of space. Black holes are called black holes, black holes, etc. According to the General Theory of Relativity, a black hole is a special place in space from which nothing, not even light, can come out.
The birth history of the black hole is a lot like poetry. A black hole is born from the death of a star. According to scientists, the smallest black hole was born at the birth of this universe. When a star runs out of fuel, it dies. As long as its internal hydrogen gas remains, the nuclear reaction inside it continues. When hydrogen is depleted, its core begins to shrink. Thus a star dies. Black holes have strong gravitational fields. Every black hole has a boundary around it that once entered it can no longer exist. This is how the blackhole survives as a marvel of space. This is the constant practice of science. There is no end to the curiosity about this cosmic monster that swallows light.
Can a black hole cause disaster or destruction on Earth?
Blackholes do not travel so close to space at all that they can prey on any star, moon, or planet. And the earth will never fall into a blackhole. Because no black hole but the earth is not so close to the solar system. If a black hole of equal mass to the Sun were replaced by the Sun, it would not. The mass of some black holes may be equal to that of the sun. But even then, Earth and other planets will continue to revolve around that black hole.
As before! So, it turns out that Blackhole has not brought any threat to us yet and is not expected to do so in the near future! Blackholes are called space monsters. Black holes are the most mysterious thing in this universe! And scientists are constantly behind this mystery and hopefully, one day this mysterious black hole will slowly emerge from the web of mystery.