Black Holes are vast expanses in space where the gravity is so powerful that nothing can escape from it. The force of gravity is so strong that even light cannot escape from it, and it looks like a black field. That’s why it is called the Black hole.
Formation Of Black Holes
Black holes can form when a star dies and collapses. These can be a result of a Supernova. Supernova is an explosion in space that happens when a massive star crashes.
A supernova can create black holes of many sizes, but most of them tend to be huge.
Sizes Of Black Holes
It is an area of huge gravitational force, and it increases in size by pulling other stars and planets towards itself, or by joining with other black holes.
Studies have found black holes to be of different sizes and mass. The lightest black hole is called XTE J1650 500, present in the Milky Way, and has a size of 3.8 solar masses. Black holes of different masses are present in space. Some black holes are called “Stellar”. These have a mass more than 20 times the Sun and are present all over the Milky Way.
However, the “Supermassive” Black Holes are the largest and heaviest. A supermassive black hole called Sagittarius A is present in the center of Milky Way. Its size is up to 4.3 million solar masses, which means 4.3 million times the mass of the Sun.
Discovery Of Black Holes
The idea of the presence of black masses in space existed in the field of physics for many years. However, there was no proof of its existence. The famous scientist Albert Einstein’s theory of Relativity implied that gravity can influence the motion of light. A German physicist, Karl Schwarzschild, developed the solution to his theory. Over the years, several scientists and physicists developed on these theories, until finally, in 1974, Stephen Hawking showed the implication of his quantum field theory which said that black holes had a type of radiation that proved its presence. This radiation is named after Hawking.
Will Earth Be Consumed By A Black Hole?
Scientists and Astrophysicists have studied the various black holes situated in the Milky Way. They have found that no black hole is near the Earth or The Solar System. Therefore, it cannot be destroyed so easily.
Some might wonder what happens if the Sun, which is a star, collapses. Will it form a huge black hole to destroy the Earth? The answer is no. The Sun is not big enough to form a black hole. Although there will be a threat to life if such a thing happens, but not from a black hole. Even if the Sun becomes a Black Hole, its gravity will remain the same, and the planets will revolve it without getting consumed.
Physicists and researchers are studying black holes from a distance. Every year, discoveries are being made and we are getting closer to the unknown. In 2019, the first image of a black hole, present almost 55 light-years away was clicked by the Event Horizon Telescope. Similar groundbreaking facts are being discovered every year.