Three technologies for future interstellar travel

People all know that the speed of light can run 300000 kilometers per second. The diameter of our galaxy is about 100000 light years, that is to say, it takes 100000 years to cross the galaxy at the speed of light. However, the Milky way is just a trivial ordinary Galaxy in the vast universe. If human beings want to explore the world outside the Milky way in the future, it is obvious that even if the speed of flight is close to the speed of light, it will not appear It is true, but as early as last century, scientists have proposed several theories to break through the speed limit, which may become a method for human beings to explore the universe in the future.

1、 Through wormhole

In the last century, Einstein put forward the theory of "space can be folded" in general relativity, and pointed out that wormholes are the "shortcut" connecting the two spaces. Through the wormholes, you can quickly get to the place you want to go. Moreover, wormholes exist in the universe and can be manufactured artificially if the level of science and technology allows It has similar properties to gravitational waves. Since scientists have confirmed the existence of gravitational waves in this century, people have focused on those celestial bodies with strong gravity.

Some people think that wormholes may be derived from the surrounding of black holes, or wormholes are another manifestation of black holes. For a long time, there has been a dispute about where the material swallowed by black holes has gone. If there is an exit for a black hole, then a black hole can pass through it. However, scientists do not agree that a black hole is a wormhole. They believe that wormholes are created by gravity The distortion of space is not as irascible as black holes, so human beings can cross into another space through this distorted space.

2、 Curvature driven spacecraft

In the 1990s, alcuviere, a scientist, put forward the method of curvature flight. He pointed out that the spacecraft used an engine that compressed the space in front of the spacecraft and inflated the space behind to achieve high-speed progress in a way that twisted the space around the spacecraft. However, due to the space expansion and compression, the members of the spacecraft would not appear time chaos and even sit in the spacecraft There was no discomfort.

The researchers pointed out that this special spacecraft is designed to be spherical, which is most in line with the requirements of curvature flight. During the flight, the position of the spacecraft can be adjusted at any time. Although this technology is still in the theoretical stage, it is similar to the wormhole theory of distorted space. Only the engine technology that can generate space expansion and compression still needs to be broken through, at least The level of human civilization needs to reach the level of "planetary civilization".

3、 Spatiotemporal lock theory

When the speed is faster and faster, you will find that time is getting slower and slower. Scientists have long discovered that when flying at high speed, there will be a similar "space-time effect in the sky for a year". Obviously, this is a time contradiction that must be solved for interstellar travel in the universe. Therefore, some people put forward the theory of "Time-space lock", that is, for the future The high-speed passengers lock in the space-time, so that the speed of the passage of time in the spacecraft is relatively consistent with the outside world. Although the passengers in the spacecraft have spent a long interstellar journey, in the eyes of others, these passengers completed the interstellar journey in a very short time. The theory of locking space-time for high-speed travel can solve the problem of time disorder. In fact, this technology is to master the ability to control time, which is far beyond the current technology of human beings. Only when human beings can create super high-speed engines, they have to face the situation that the time inside the spacecraft is slower than that on the ground. The technology that can control time and space can realize more distant interstellar travel.

Although human beings have not even the ability to explore the entire solar system, they have been constantly breaking through the speed limit. However, even if the speed can be infinitely close to the speed of light, it is still difficult to fly out of the galaxy. For the universe with a span of 93 billion light-years, it is impossible to rely on the speed to realize the exploration. There are thousands of UFO eyewitness reports on the earth every year, if there are from afar Obviously, it is impossible for the extraterrestrial civilization of the galaxy to come to earth at the speed of flight.

So which of the three technologies described above is better for interstellar travel?