Flying at 2000 times the speed of light, a spaceship may not be able to get out of the galaxy. Why?

Since there were written records 5000 years ago, mankind has officially entered the stage of civilization development. In fact, the development of human civilization is also the development of energy. With the continuous updating and advancement of energy, human civilization is also advancing, and finally entered the era of science and technology 300 years ago.

In fact, the history of energy development is also a history of continuous improvement in speed. I believe friends all know that in ancient times, people went out basically by walking, and the faster means of transportation was nothing more than carriage. At such a speed, it is very difficult to explore the whole earth, even the 9.6 million square kilometers of China.

If human beings want to explore the mysteries of all things in the world and have a better understanding of the earth, they must go out. And to go out and go around the world, it’s impossible without fast transportation. Before human beings entered the era of science and technology, there has been no obvious change in the means of transportation for thousands of years. More people still rely on walking. People with money and power can ride horses or luxurious carriages.

When mankind entered the industrial revolution, it ushered in the period of rapid development of science and technology. At this time, the means of transportation also began to be constantly updated. The earliest was bicycle. Later, there were motorcycles, cars, trains, planes, etc. the speed of these means of transportation continued to improve. With the advantage of speed, we can finally travel all over the world and explore the mystery of the world. And the faster rocket can let people go out of the earth and explore the mysteries of the universe beyond the earth.

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Before Einstein’s theory of relativity came out, many people thought that speed could be infinitely improved. But when Einstein put forward the theory of relativity, we know that speed is a limit value, that is the speed of light. So human beings are eager to realize the speed of light. Maybe some people don’t understand why human beings are eager to realize the speed of light? It turns out that the speed of light can make two wishes come true.

The first wish is to be able to fly at the speed of light, to reach more distant interstellar space, and to explore more mysteries of the universe. I believe we all know that when human beings go out of the earth and see the vast universe, they will know what is small. In front of the universe, the earth may not even count as a grain of dust. And the supersonic flight that human beings take pride in on earth is not even tortoise speed in the universe. It’s too slow.

If humans want to go out of the solar system, explore the galaxies and planets that can be observed by astronomical telescopes, and find a second planet suitable for human survival, they all need the super fast speed of spacecraft. In the future, once the ecology of the earth deteriorates to the point that it cannot survive, there is no natural second earth suitable for human survival in the solar system, so the hope of human beings is only outside the solar system.

But if the speed of the spaceship is not fast enough, we can’t even get out of the solar system, let alone achieve interstellar migration. Therefore, the advantage of speed also determines the future of mankind. At the same time, human beings have been looking forward to exploring extraterrestrial life and getting in touch with extraterrestrial civilization. Extraterrestrial life may exist on other planets in the solar system, but extraterrestrial civilization can only exist outside the solar system.

All kinds of reasons point to the decisive factor of speed. The speed of light is the fastest known speed of the universe, which can only be achieved by photons without mass. However, a mass object can only be infinitely close to the speed of light. Although Einstein’s conclusion limits the speed of a mass object to be infinitely close to the speed of light, scientists still believe that light speed flight can be realized in the future.

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The second wish is to verify the possibility of time travel. According to Einstein’s theory of relativity, when an object infinitely approaches the speed of light, the time of the object will “become slower and slower”. When the speed of the object reaches the speed of light, time will be meaningless and become a static state. When the time of the object is still, no matter how long it moves, no matter how the outside world changes, its time will always stay at the moment before entering the speed of light.

So is Einstein’s theory of relativity right about the “bell man effect”? Now there is no definite answer. If you want to prove the correctness of this point of view, you can understand it only when the speed of the object realizes the speed of light. Even the sub speed of light can not fully prove its correctness. Once scientists have confirmed that the clock diffuse effect proposed by the theory of relativity is correct, it will be an opportunity for human civilization to achieve another leap, which means that time and space travel will become possible and theory will become reality.

Some people may say, is time travel to return to the past time line, so as to change history? Maybe you have a misunderstanding about the time-space travel of objects flying at the speed of light under static time. Using time machine to travel between the past and the future is a scene in many sci-fi works. Many people expect it very much. In particular, it is the dream of countless people to travel through time and space to return to the past.

However, if the time of an object flying at the speed of light can really stay still, it does not mean that time and space can go back to the past. Although we may not be able to go back to the past, we can go to the future as long as time is still. In fact, this kind of time travel to the future through the speed of light is not as powerful as the time machine of science fiction.

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The principle and process of flying at the speed of light to the future is not complicated. If time is still at the speed of light, we can fly around the earth or other celestial bodies at the speed of light. At this time, the outside time is still normal flow, people on earth can see the spacecraft in space circling for hundreds or thousands of years.

The earth has experienced thousands of years of sea changes, but people in the speed of light spacecraft will not feel the passage of time because time is still. When the spaceship stops flying at the speed of light, the earth may have been thousands of years or even longer, and the people inside the spaceship are still so young. It feels like a moment has passed, but the earth has changed greatly. This is the way to travel through time and space to the future through the speed of light.

Some scientists once proposed the idea of letting spaceships run around black holes to realize space-time travel to the future. As we all know, the rotation speed around the horizon of black holes is very fast, and they can basically realize sub light speed or even light speed motion. If the speed of an object is infinitely close to the speed of light, and time is also infinitely slow down, then the spaceship will run around the horizon of the black hole, and the rotation speed of the horizon of the black hole will bring the spaceship running at the speed of infinitely close to the speed of light, so that the dream of going to the future can still be realized. Of course, this is just an assumption of scientists. In fact, it is not easy for a spaceship to operate safely around the horizon of a black hole. It must be able to balance the strong gravity of the black hole.

We still don’t know what kind of state an object is at the speed of light. Human science and technology are far away from this goal. In our opinion, the speed of light is the fastest in the universe, but it is still the tortoise speed in the cosmic scale. Even if we can fly at the speed of light, we still can’t fly out of the Milky Way galaxy, which is 200000 light-years in diameter.

Scientists believe that even at 2000 times the speed of light, humans may not be able to reach the edge of the galaxy and fly out of it. It’s only 200000 light-years in diameter, and the observable universe is 93 billion light-years. How fast can we explore such a vast range? Maybe tens of thousands of times, hundreds of millions of times the speed of light may not be realized.

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Moreover, the universe has been expanding all the time. Although people on earth don’t feel it, in fact, the universe is expanding every minute and every second, and the distance between galaxies is also being widened. As early as 2015, scientists found that the size of the Milky way has increased by about 50% compared with the past, and in the future, the Milky way will continue to expand.

Therefore, the speed of light is not the only way for human beings to go out of the universe and explore the whole universe. There may be other speed modes that we can’t understand at all, such as space hopping, wormhole shuttling and so on. Their speed mode has gone far beyond the speed of light and the category of superluminal flight. Only by developing a new flight mode that is far higher than the speed of light can we really hope to explore the whole universe and finally uncover the ultimate mystery of the universe.

Guys, what do you think of this? Welcome to leave a message below to discuss and express your opinions.

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