What is Black Hole? What it can cause the universe?

 A black hole is a place in space where gravity's pulling force is so powerful that light cannot escape. Intense gravity is caused by mass being compressed into a small space. This compression can happen when a star is nearing the end of its existence. Some black holes are formed by the death of stars.

Black holes are invisible because no light can escape them. Space telescopes equipped with specialized instruments, on the other hand, can aid in the discovery of black holes. They can study the behavior of materials and stars in close proximity to black holes.

Black Hole

The black hole named Cygnus X-1 formed when a large star caved in. This black hole pulls matter from the blue star beside it.
Credits: NASA/CXC/M.Weiss

What Is the Size of Black Holes?

"Supermassive" black holes are the largest. These black holes have a total mass of more than one million suns and would fit inside a ball the size of the solar system. According to scientific evidence, every huge galaxy has a supermassive black hole at its heart. Sagittarius A is the name of the supermassive black hole in the center of the Milky Way galaxy. It has a mass of around 4 million suns and is small enough to fit within a ball the size of the sun.

Black holes can be very large or very small. The smallest black holes, according to scientists, are as small as one atom. These black holes are really small, but they have the bulk of a mountain. The amount of matter, or "stuff," in a thing is measured in mass.

"Stellar" black holes are a different type of black hole. It has a mass that is up to 20 times that of the sun. There could be a large number of stellar-mass black holes in the Milky Way galaxy. The Milky Way is the name of our galaxy.

What Causes Black Holes to Form?

The smallest black holes, according to scientists, formed when the universe began.

Stellar black holes are formed when the core of a massive star collapses in on itself. When this happens, a supernova occurs. A supernova is a star that explodes and sends a portion of its mass into space.

Is it possible for a Black Hole to destroy the Earth?

Black holes do not eat stars, moons, or planets as they travel across space. Earth will not be swallowed by a black hole since none are close enough to the solar system to do so.
Even if a black hole with the same mass as the sun replaced the sun, the Earth would not fall into it. The gravity of the black hole would be the same as that of the sun. Earth and the other planets would orbit the black hole in the same way that they currently orbit the sun.

What Methods Does NASA Use to Research Black Holes?

NASA is learning more about black holes by employing space-based satellites and telescopes. These spacecraft aid scientists in their quest to find answers to questions about the universe.

What is the distance between Earth and the nearest black hole?

The Unicorn

'The Unicorn' is only 1,500 light-years away from us and has a mass three times that of the sun. Astronomers believe they have discovered the closest known black hole to Earth, a strangely small object dubbed "The Unicorn" that is only 1,500 light-years away. The moniker has two meanings.

Source From NASA

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