What is a black hole?

Black holes are fascinating astronomical objects. These are areas in space where gravity is so strong that not even light can escape. There are several of these known objects, but which one is the largest? In this article, we are going to talk about the 5 biggest black holes in the universe. Check:

What is a black hole?

A black hole is an area in space where gravity is so strong that not even light can escape. Light is the fastest motion in the universe, so if even light can not escape one of these astronomical bodies, it is because gravity is really, really strong.

What is the shape of a black hole?

The shape of one of these astronomical objects is determined by its gravitational field. The larger the astronomical object, the stronger its gravitational field and therefore more distorted its shape.

Black holes can be classified according to their size. Supermassives are the largest in the universe and can vary in size from a few times the size of the Sun to hundreds of times the size of the Sun. Stars are those that resemble our star in size. And finally, the primordial ones are the ones that were formed at the beginning of the universe.

What does it take to form a black hole?

In order for a black hole to form, there must be a large amount of mass concentrated in a small space. The larger the mass, the stronger the gravitational field and therefore it is easier for light to escape the area.

Most supermassives are formed by several stars that gather in a single area of ​​space. Stars form when a star dies and collapses on itself. And finally, the clockworks were formed at the very beginning of the universe, where the conditions were ideal for the formation of black holes.

What happens if an object falls into a black hole?

If an object, be it a star, a planet or even a spacecraft, falls into a black hole, it will be sucked into the astronomical object and never come back. This is because gravity is so strong that even light cannot escape. The closer an object gets to one of these objects, the more it experiences an effect known as spaghettiification, which is when the object’s gravitational field causes a body like a series of noodles.

Photo: Sasanka7 –

What’s the point of the black hole?

Black holes are important for several reasons. First, they allow us to understand the nature of gravity. In addition, they are also present in many galaxies and can influence the behavior of these galaxies. Ultimately, these astronomical objects are important sources of energy in the universe.

The discovery of black holes

Black holes have been discovered by observing other astronomical objects. The first discovery was made in 1784 by the English astronomer John Michell. Michell observed that some stars had such a strong gravitational field that not even light could escape them.

In the 19th century, the French astronomer Pierre-Simon Laplace was the first to propose the existence of astronomical objects. Laplace noted that the laws of gravity could explain the existence of these objects.

In 1915, the German Karl Schwarzschild was the first to calculate the properties of a black hole. Schwarzschild calculated that one of these objects could have a given mass and a given radius of event. The first scientific evidence for the existence of astronomical objects was obtained in 1971 by the American astronomer John Wheeler.

Are black holes worm paths?

They are not, even though many people think so. Worms are theories in physics that suggest the existence of portals that are capable of instantly transporting humans and objects from one place to another. To date, however, there is no scientific evidence to prove the existence of earthworm trails.

Known black holes

Quasar SDSS J0100 + 280

The first of these objects that we will mention is the quasar SDSS J0100 + 280. This astronomical object was discovered in 2014 and has a size of about 12 billion times the diameter of the Sun. It is located about 13.26 billion light-years from Earth and is the most massive object known to date.

M87 *

Another interesting object is the M87 *, which is located in the center of the M87 galaxy. It has a size of about 22 million times the diameter of the Sun and a mass of about 40 billion times the mass of the Sun. It is located approximately 54 million light-years from Earth.

Polarized slide around the black hole M87
Polarized slide around the black hole M87. Photo: EHT Collaboration

NGC 1277 *

The black hole NGC 1277 * is also very interesting. It has a size of about 17 million times the diameter of the Sun and a mass of about 200 million times the mass of the Sun. It is located about 220 million light-years from Earth.

IC 1101

Finally, IC 1101 is another interesting object. It has a size of about 60 million times the diameter of the Sun and a mass of about 100 trillion times the mass of the Sun. It is located about 28 billion light-years from Earth.

Sagittarius A *

Finally we have the Sagittarius A * black hole. This astronomical object has a size of about 44 million times the diameter of the Sun and a mass of about four million times the mass of the Sun. It is located at the center of our galaxy, about 26,000 light-years from Earth.

What is the name of the black hole in the picture?

In April 2019, the first photograph of a black hole was published. The image showed an object in the center of the galaxy M87. It has a name: M87 *.

What is a quasar?

A quasar is an astronomical object that emits an enormous amount of energy. Quasars are the brightest black holes in the universe and can be seen at great distances.

  • SDSS J0100 + 280 is a quasar. It lies approximately 13.26 billion light-years from Earth and is the most massive black hole known to date.
star swallows black hole
Photo: Jurik Peter –

What is the difference between a black hole and a quasar?

The main difference between them is that quasars are stagnant astronomical objects, while quasars are extremely active astronomical objects. Another important difference is that holes do not emit light, while quasars emit a huge amount of energy.

So far, black holes have been discovered in different parts of the universe. However, there is still much that scientists do not know about these mysterious astronomical objects. Hopefully, in time, we can learn more about these and other objects in the universe.

What is the closest black hole on Earth?

The black hole closest to Earth is Sagittarius A *. It is located about 26,000 light-years from Earth, at the center of our galaxy.

What does “Messier” mean?

The term “Messier” is used to describe black holes, nebulae, and other objects in the universe. Messier was an astronomer who made a list of celestial bodies in 1758. The Messier list contains 110 objects, including M87 *.

What does “New General Catalog” mean?

The New General Catalog (NGC) is a list of objects in the universe, including black holes, nebulae, and other objects. The list was created by astronomer John Dreyer in 1888 and contains 7840 objects. Hole NGC 1277 * is listed on NGC.

What does “index catalog” mean?

The Index Catalog (IC) is a list of objects in the universe, including black holes, nebulae, and other objects. The list was created by astronomer John Dreyer in 1895 and contains 5,364 objects. IC 1101 is listed on IC.

What is the difference between a black hole and a fog?

The main difference is that black holes are extremely dense celestial bodies, while nebulae are clouds of interstellar gas and dust. Another important difference is that black holes do not emit light, whereas mists can be extremely bright.

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