our cosmos is filled with stars with different bodies whose inner nuclear processes generate energy. when this nuclear fuel ends, the star rams and collapses inside itself. stars with a limitous mass of the sun's mass are transformed into black holes after they fall into white dwarfs, stars of moto size by the neutron star and those stars that are several times the mass of the sun.

the black hole's gravitational field is very strong, so that even light is unable to escape it. the boundary of space around the black hole, which cannot be returned by entering, is called the "event horizon". astronomers believe that at the center of most large galaxies in the cosmos is a massive black hole.

after albert einstein predicted the existence of black holes, astronomers were always trying to capture it. but since even light can't escape the black hole, it seemed impossible to capture an image of the black hole.

Finally, in April 2019, astronomers managed to capture the first image of the central black hole of the M87 galaxy 55 million light-years from Earth.

To achieve the image you see below, the team launched a network of telescopes called "Event Horizon" or "EHT" in different parts of the Earth, using a technique called "Very Long Baseline Interferometry", abbreviated as "VLBI". This image shows a glowing ring formed by bending light by extreme gravity around a black hole with a mass about 6.5 billion times the mass of the Sun.

The next goal of the EHT team scientists is to capture the central black hole of the Milky Way , "Sagittarius A*", located 26,000 light-years from Earth. Today's EHT news conference reported the latest details associated with the Milky Way's first central black hole image.
 

In this image, 8 telescopes from different parts of the Earth collected data. Explaining their challenges, astronomers pointed to interstellar dust that made it difficult to capture the black hole. This black hole with a mass about 4 million times the mass of the Sun has the same image as the M87 black hole.