The origin of Milky Way it is full of mysteries. However, the astronomers believe it to have been born 13 billion years ago. But what were the events that favored its formation? How was your development? To better explain the matter to you, we have prepared the text below:
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How was the Milky Way formed?
The text below will solve all your doubts about the formation of our galaxy:
The beginning
The early years of the Universe are difficult to investigate. So astronomers aren't sure when galaxies formed, but there are some clues. The modern Universe presents places with different densities. According to the ESA, European Space Agency, when he was young, there was no difference in his length.
The Young Milky Way
Our galaxy probably arose like any other in the galaxy, with a small clump of matter that had a higher density than the rest of outer space.
As this clump had more density, the Milky Way had a stronger gravitational pull to attract dark matter, giving it more gravity. Eventually, these elements grew large enough to pull in normal matter, which came together and formed the first stars.
These clumps remain in the Milky Way today and are known as globular clusters. According to the Harvard/Smithsonian Center for Astrophysics, it also contains the oldest stars in the galaxy, at 13 billion years old.
during youth
The first clumps of dark matter and stars merged 12 billion years ago to form the Milky Way. Once the merger took place, our galaxy emerged as distinct, separate from the others.
Its massive gravity pulled in more and more dark matter and gas, causing it to grow rapidly. In the observation by the Gaia satellite, a dozen stars in our galaxy were identified, with similar composition, age and speeds.
Astronomers believe that these clusters of matter are leftovers from smaller galaxies that fell into the Milky Way billions of years ago, whose gravity was responsible for destroying them.
The Milky Way in the 21st Century
Currently, the Milky Way is ripping apart nearby satellites and is on a collision course with its large neighbor, the Andromeda Galaxy. According to NASA, in about 4 billion years, the two will collide and change completely.
These collisions are catastrophic, as they quickly form multiple stars that won't have enough gas to form generations. And from these mergers, galaxies tend to turn red and dead.