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Event Horizon Telescope (EHT) experts, who were the first in the world to immortalize a black hole in the Messier 87 galaxy in 2017, have achieved another great success: they managed to take a picture of the Sagittarius A * black hole, located in the center Milky Way.

The EHT team uses several radio telescopes around the world and combines the results of their observations. Thanks to this, he is able to study even black holes, which have such an intense gravity that not even light can escape from them.

The new photo shows the “shadow” Sagittarius A * (also known as “A-star”, the standard abbreviation Sgr A *) as well as the surrounding high-energy area. The actual event horizon cannot be seen precisely because it does not emit light.

Recall that it was not yet clear whether Sagittarius A * was indeed a black hole or another very large, bright and compact source of radio radiation.

300 scientists and years of work

It is not without interest that approximately 300 scientists worked on this research, and the resulting image consists of several photographs, which were created thanks to the involvement of other radio telescopes in the project and improvements in technology.

“Getting this composite picture was like getting a clear picture of a running child at night. Can you imagine how crazy it has driven us forward for many years? ” said at the press conference astrophysicist José L. Gómez from Astrofísica de Andalucía.

“Our conclusion suggests that Einstein’s theory is still solid … we now have the most convincing evidence that a supermassive compact object at the center of our galaxy is a black hole.” she commented astrophysicist Mariafelicia de Laurentis from the University of Naples Federico II.

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