Astronomy: NASA’s Hubble Space Telescope finds galaxy without dark matter

UNITED STATES – The mystery of the galaxy devoid of dark matter seems to be getting deeper and deeper. The so-called “NGC 1052-DF2” has been listed as possibly devoid of this material. This was done using NASA’s Hubble Space Telescope. For this reason, the news has had an impact on the world of astronomy and it is not for less, because it would overturn what was previously known. In this context, NASA itself revealed that dark matter is the “invisible glue that makes up most of the matter in the universe”. This represents 85% and galaxies are made up of it and its formation would occur in large halos of dark matter. And that is why the surprise of scientists is greater, because in 2018 they discovered one that has a lower percentage. The galaxy “NGC 1052-DF2” contains about 1/400 of the amount of dark matter expected. Likewise, it has been pointed out that this claim was made after analyzing the movement of stars within the galaxy itself, since their speeds are influenced by the pull of gravity. Therefore, the observation resulted in a large number of stars which would not leave space for dark matter. On the other hand, the press release released by the agency revealed that in 2018, they were working to measure the distance between “NGC 1052-DF2” and “UDG NGC1052-DF4” (neighbor). It was there that they found fluctuations in brightness on the surface, which threw up the theory of lack of dark matter, which they found implausible. “Determining an exact distance to DF2 has been essential in supporting our previous results,” they revealed in a statement. For all of the above, the Hubble Space Telescope continues to surprise astronomy enthusiasts. Additionally, study co-author Zili Shen said, “There is a saying that extraordinary claims require extraordinary evidence, and the new distance measure strongly supports our previous conclusion that DF2 lacks black matter. Now is the time to move beyond the distance debate and focus on how these galaxies came to be. ”

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