The rest of the voyage was a bit lackluster. Chen Yue also broke away from the excitement of the first interstellar voyage at the beginning.

"The universe is so big......

Chen Yue sighed from the bottom of his heart.

At this moment, the human fleet has been sailing for a full nine years. The speed of the human fleet has increased to about 56,000 kilometers per second, or about 18.7% of the speed of light.

At the moment, the human fleet is about seven trillion kilometers from the sun, about 0.73 light years.

Since encountering that 100-meter-sized asteroid, in the following voyage, even Chen Yue's third-level civilization observation technology has not been able to find a macroscopic celestial body in the Oort cloud region.

It's really empty, it's too vast.

The speed of 56,000 kilometers per second is undoubtedly an extremely high speed. But even with such a fast speed, in the absence of a reference, to Chen Yue and the intelligent beings, the human fleet still seemed to be stationary.

The starry sky seen from here is no different from the starry sky seen in the solar system. Not even the sun is unusual.

At this distance, the Sun is still the brightest star of the day. Although its luminosity has been slowly decreasing, the decline is not significant.

If it weren't for the slight gravity generated by the acceleration that reminded people that the fleet had been accelerating, otherwise, Chen Yue might really suspect that he hadn't moved at all in the past few years.

The environment here is at least 99.9999% similar to the environment when it was only tens of billions of kilometers away from the sun, without the help of instruments that intelligent life can feel.

Sailing for so long, sailing so far, it's like sailing only a lonely.

"This is already a real interstellar space. Aside from gravity, the Sun's influence here is approximately none. In this case, some experiments with special requirements can be carried out. ”

Chen Yue thought like this and arranged it casually. So the Three-Eyed scientists were busy again.

During this time, the Three-Eyed people have not been idle. Due to the lack of materials, large-scale scientific experiments cannot be carried out, but theoretical research is not affected. So scientists are also busy all day long. The Three-Eyed society has also been functioning normally.

Now, the task assigned by Chen Yue is just to make them a little busier when they are already busy.

As for Chen Yue himself, of course, he was not idle. Even without the previous construction tasks, he is a little busier.

His huge computing power has been carrying out calculations and research on physical theories and certain mathematical models, and has reaped many results. In addition, Chen Yue has also accumulated thousands of experimental needs, and once the material supply conditions are improved and the conditions are met, corresponding experiments will be carried out immediately to promote the development of science and technology.

In the past, I didn't even know what the problem was. Now, regardless of whether the problem is solved or not, the problem has finally been raised, and the follow-up research on these problems can be carried out. It's not a waste of time, it's just as meaningful.

Time passed slowly under such circumstances. In the blink of an eye, another two years have passed. On this day, the speed of the human fleet reached 68,000 kilometers per second, or 22.67% of the speed of light. The distance between the human fleet and the sun has also reached 10.9 trillion kilometers, about 1.14 light years.

Here, Chen Yue once again observed a macroscopic star.

It is also small, only about 50 meters long, and it is unremarkable that there is no need for further observation.

But its orbit is strange. After precise measurements, Chen Yue found that the asteroid was not orbiting the sun at the moment.

It is fleeing from the sun at a speed of about 160 meters per second, heading towards the south gate of the second and third stars.

South Gate 2 is a three-star system, and one of the smallest stars is the famous Proxima Centauri, which is the closest star to the Sun.

The direction of the asteroid's motion is Proxima Centauri.

Chen Yue looked at the asteroid with interest, and a word popped up in his mind: gravitational disturbance.

Stars in this region are very unstable. They may orbit the Sun for some time, but at any time they may lose their current orbit and change their motion due to an impact or the gravitational pull of a distant star.

They may either move closer to the Sun and enter the inner solar system, or they may move away from the Sun and escape from the solar system and become a member of the rest of the star system.

At present, if the rest of the effects are not affected, then the final destination of this asteroid will be captured by the gravitational pull of the South Gate 23 stars in about 10 million years.

"The creation of the universe is truly wonderful. It may be possible for different star systems to exchange matter through this mechanism. ”

Through elemental determination, Chen Yue can determine that this asteroid was born in the solar system, and the reason why it came so far from the sun is most likely because of the gravitational influence of Jupiter and Saturn.

At the beginning of the formation of the solar system, the internal material was chaotic, collisions were frequent, and the large planets were in a state of development, without a stable orbit, and the gravitational force between them affected each other, like a mess. In this case, it is possible that some asteroids can escape the inner solar system and reach the Oort cloud region at extremely high speeds through a mechanism similar to a gravitational slingshot.

There is a high probability that it will eventually become the star of the South Gate II galaxy.

Since such a mechanism exists, is it possible that the asteroid born from the Nanmen II galaxy will also be expelled to the Oort cloud of the Nanmen II galaxy through a series of mechanisms, and then be disturbed by the sun's gravity to break away from the Nanmen II galaxy and finally reach the solar system?

Even...... Finally crashing into the primordial Earth billions of years ago?

This is also possible.

So, is it possible that the formation of life on Earth is related to this material from an extragalactic system?

Chen Yue could not verify it. But at least, he couldn't deny the possibility.

One thing he can be sure of is that even if the Oort clouds are so far away from the Sun, so far away from the Earth, even if the rest of the stars are so far away from the Sun, they have a huge influence on the evolution of life on Earth.

Chen Yue even suspected that as far back as 70 million years ago, the extinction of the dinosaurs that dominated the earth was related to the Oort cloud and another star that had been close to the solar system at that time.

Trillions of kilometers, or even tens of trillions of kilometers away, a star that happened to pass by was related to the extinction of the dinosaurs, which seems very incredible, but there is a certain logic behind it.