If I ask you how big the universe is? Even the wisest people will be speechless and cannot give an answer for a long time!
Industrial Revolution has allowed human science and technology to develop rapidly. In just two or three years ago, human civilization has crossed barriers to reach a new height, and exploring space is no longer an out of reach dream. In the 1960s, the space race held by the United States and the Soviet Union made a major breakthrough in human space technology. Apollo lunar exploration , Voyager series spacecraft and Mars exploration plan, Many brain-opening exploration plans were born in that era.
In modern times, aerospace technology has further developed. The Kepler telescope, which has been floating in the sun's orbit, has helped people discover more and more -type earth planets float in the depths of the universe. On the surface, we are getting closer and closer to finding alien life and touching alien civilizations, but the continuous exploration and discovery always makes people feel that there is a layer of window paper that cannot be broken from the truth. Although scientists have constructed countless models and ideas, , in the vast universe, we have not even discovered the most basic single-celled organisms, and humans are still the only civilization race in the known universe.
The vast universe brings people many unknown puzzles. How big is the universe? Time and space are the most basic laws of this universe. But so far, no one can give an answer about the limits of the universe. Every time you look up at the starry sky at night, if the weather is sunny, you can observe the stars 2,000 light years away by your naked eyes. Under this starry sky, about 5,000 stars flashing above the night sky. The brightness of the stars you see may come from the light it emits thousands of years ago.
contains 2 million stars in 2,000 light years of space and time. They are bright and dark, even if you exhaust the limits of your naked eyes, you will not be able to find his trace. The brightest few have also become the protagonists of the poems of countless literati and poets throughout the ages.
When you think the sky you see is too big to imagine, for the real universe, the starry sky of is like a drop in the ocean. With the support of current detection technology, scientists have finally given the answer to the boundaries of the universe. The existing known to be explorable universe range is 93 billion light years. Note that here refers to the existing known to be explorable cosmic range . Maybe no one can tell how big the real universe is.
According to the ancient electromagnetic wave received by astronomical telescopes in various places and scientists' calculations, the mainstream view is that the universe was born in the Big Bang at the singularity 13.8 billion years ago. The universe before the explosion was in chaos, which looked like the chaotic world before Pangu opened the sky in mythology. At the moment of the explosion, countless matter began to scatter outward from the singularity, and had scattered outward tens of billions of light-years in less than a second. Until now, the universe is still spreading outward at a speed of that exceeds the speed of light.
Light is the fastest matter in the known universe. The long distance from the sun to the earth can only be reached in 8 minutes. If human technology cannot break through the speed of light. Then the actual size of the universe will always be a mystery to humans.
In the existing world, the only thing that may exceed the speed of light should be human imagination. Although we are not able to see it, , but thinking can travel through time and space, allowing people to imagine the world outside the expansion circle of the universe . American astronomers have imagined the open areas outside the universe. There is no concept of time and space there.
What stays there will be a piece of nothingness or a different dimension space that exceeds the level of time and space.
The vastness of the universe has exceeded our imagination, and it has already given people an extremely strong shock among the celestial bodies that have been observed. As a terrible existence of 95% of the mass of the solar system, the sun is , and is a well-deserved giant in the solar system. In the sun's belly, can hold 1.3 million planets the size of the earth . But even so, in the stellar circle, the sun is a veritable little man. Shield UY is the largest star discovered by humans. Its huge body can swallow 4.5 billion suns .
No matter how big the star is, it becomes insignificant in front of the galaxy. The Milky Way galaxy is about 130,000 light-years . Just as the earth orbits the sun, the solar system also takes the Milky Way as the center and makes slow revolutions. If years are used as the counting unit, then the "year" of the solar system will be 200 million Earth years.
Milky Way is very big? If the universe is compared to a mountain, the Milky Way can only be regarded as an ant in the mountains, and the earth will be really as vague as dust. Perhaps the expansion of the universe will never end, and humans will never know where the boundaries of the universe are. Just like now, no matter which direction you look at the universe from the earth, the observable distance is 93 billion light years. What does the world look like 93 billion light years away? No one can tell it clearly.
If the emergence of life is regarded as accidental, it is the only accident in the universe to the Big Bang, then Human beings are undoubtedly lucky . But this result is also that makes people desperate . We will forever reproduce alone in a darkness or be imprisoned in the solar system by an invisible law. When technology continues to develop, population continues to expand, exceeding the load of the earth, what should we do?
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#I want to go to headlines# #Toutiao Creation Challenge#
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