What is the end of the universe?

byJeremy Thomas

Along with the progress of technology, research has gradually been revealed about the beginning of the universe and the end of the universe. About the thing "What is there at the end of the universe?", What you know about 2018 as a science channel on YouTubeLife NogginIt is easy to understand with animation.

What's At The End Of The Universe? - YouTube


In order to think about "What is at the end of the universe?", You first need to know about the "beginning of the universe". There are various theories on this,Big Bang TheoryIt is famous.


Of course, this is a drama "Big Bang ★ TheoryIt is not the story of.


The Big Bang theory was first chanted in the 1920s. The universe was once very small ... ...


After that, it expanded enormously to the extent recognized by the present age.


According to NASA, when looking at the universe in a few seconds after the big bang occurred, it should have confirmed 10 billion degrees of "sea of ​​particles" containing elementary particles such as neutrons, protons, and electrons . After that, as elementary particles spread and the universe expanded, the temperature went down.


And elementary particles stick together, atoms are born.


The atom creates stars, galaxies, molecules, eventually the universe was filled with planets, people, creatures.


But the universe continues to expand forever, even after we have created us. The idea of ​​"the universe will continue to expand forever" is wonderful, but why in modern times is Big Bang theory as a possible hypothesis?


At the time Big Bang theory appeared,Edwin HubbleI made a very interesting discovery by observation. More than one galaxy was moving away from us where we are. Also, the farther you get away, the galaxy speed seems to be accelerating.


Observation of Hubble was an important evidence that the universe is expanding. "To go away" is to indicate that it was "one in the past."


Cosmic microwave background radiation(CMB) discovery is also considered as evidence of Big Bang theory.


In the Big Bang theory, it is said that the universe is the first high temperature, afterwards the temperature has declined. In that case, the afterglow that a big bang has happened in the universe should remain.


Two physicists Arno Penzias and Robert Wilson discovered this afterglow, CMB.


The survey was proceeded by NASA and others and it turned out that the temperature of CMB was as cold as absolutely zero degrees and that it spread throughout the universe. "Expanding throughout the universe" means that "the universe was originally one" as shown by the Big Bang theory.


As the universe is enlarged forever, what is the end of it, human beings can not know the answer right now.


This is because the universe is not just expanding, it is accelerating the expansion speed. The universe is already expanding at a speed faster than the speed of light, and humans can not keep up with the expansion speed of the universe unless it stops its movement.


If technology advances, one day you may know "what is at the end of the universe", but until then it seems to be only an imagination.