When 14.5 billion years ago literally fromour Universe arose; in the infinite darkness the first hot stars suddenly began to light up, which could transmit the bright light of intergalactic space. They did it so that the newborn universe at some point became transparent, although it is difficult to imagine a brain accustomed to modern reality. According to the data obtained at the MIT Haystack observatory, as soon as our Universe was able to cool sufficiently, all the protons and electrons contained in it combined to form the so-called neutral hydrogen, which made the universe unobservable in the electromagnetic spectrum. Well, it seems that experts have not in vain called such a strange period “dark ages”.
What are the dark ages of the universe?
As you know, when the universe was still quiteyoung, it consisted of hot but rapidly cooling particles. The cooled protons and electrons could at some point unite, turning into neutral hydrogen, which hid our universe from observations in the electromagnetic spectrum. When, after about a billion years, the era of “reionization” began, which led to the emergence of plasma, a very interesting period occurred in the history of the Universe, the main characters of which were young and very hot stars, emitting a huge amount of ultraviolet radiation.
According to the portal livescience.com, in order to better understand the processes that took place in the “dark ages” of the Universe, the researchers turned to one of the oldest known galaxies to date, located at a distance of 11 billion light-years from Earth, called Sunburst Ark.
Being in the process of studying light signals,coming from an ancient galaxy, the researchers suggested that the initial ionized light exited young galaxies through several narrow channels that exited the opaque shell of Sunburst Ark.
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Similar “galactic holes” for the first time coulddiscover the Hubble telescope, which observed an ancient galaxy using the gravitational lensing method. Some of the images of the telescope were taken in a non-ionized spectrum of light, showing the presence of holes in a gas-coated galaxy.
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Thus, the sources that could spawnthe first ionizing photons of the Universe finally got a scientific explanation, which gave humanity the opportunity to reconsider our understanding of the processes that took place in the darkest centuries of the Universe.