In any case, among the twenty-seven letters, there was no reply about the alien civilization, which made Yang Mengyou feel a little disappointed.

But he quickly adjusted his state,

There is still some distance from the unknown galaxy ahead,

Because this galaxy is not an active light-emitting object, and there are no other stars around it to provide a light source,

Only some observation techniques such as infrared radio can send back some dry data.

Therefore, it is impossible to make a specific judgment on what the galaxy ahead looks like.

In this case,

Yang Meng could only continue to read the twenty-seven letters that had been transmitted in the past twenty-seven years.

"As for my anomaly, the Earth side has noticed!"

Although there is no reply to the extraterrestrial civilization in this,

But twenty-seven years ago, the situation caused by the crash of the spacecraft on the planet Rutan still attracted the attention of the earth.

As the Earth periodically transmits signals to him,

His own spacecraft is also periodically sending messages to the earth.

However, because the power of the communication device on the spacecraft is limited, the content of the information sent is not much, only to report the status and location data of some spacecraft personnel......

And Yang Meng is in a state of low temperature dormancy most of the time, and the matter of periodically replying to messages is also handed over to Xiao Yin......

After the spaceship crashed, he didn't reply to Earth for a while, and it was this situation that made Earth notice his anomaly.

In the latest correspondence, the Earth confirmed its status to him,

"Now that the Earth side has asked about this matter, the next letter is likely to be a letter from the Earth about extraterrestrial civilizations!"

Seeing this, Yang Meng secretly breathed a sigh of relief, and the worry in his heart also decreased a lot.

Continue to look at the changes of the earth in the past 27 years,

For creatures like humans,

Without external intervention, twenty-seven years is almost one-third of human life.

And during this time,

The human outpost in the Barnard system has been successfully built, and the population of the base has exceeded 200.

Barnard is the second closest star system to the Solar System, located 5.9 light-years from Earth.

This distance is much closer than that of Rutan.

Although it is very close, the environment of the Barnard galaxy is not good.

As a very small red dwarf, its habitable zone is also small,

The planets of the Barnard system discovered earlier by mankind are also giant planets.

The mass of the two planets is 1.1 times that of Jupiter and 08 times that of Jupiter.

Such a large gas giant has not yet been able to establish a base on it.

Just as Jupiter has a complex system of moons, these two planets also have their own satellite systems.

can be too far away from the stars, and the temperatures of these moons are extremely low,

Fortunately, when the pioneer astronauts of mankind arrived on Barnard Star,

In the light of the stars, three more smaller rocky planets were discovered,

But unlike Rutan Star,

The mass of Planet Rutan B is very large, which is 2.8 times the mass of the Earth,

And the three planets found in Barnard's system, although one of them is in the habitable zone,

But the largest of the three rocky planets is only 0.8 times more massive than Mars.

Such a small mass also leads to a problem.

That is, the planets in the habitable zone are tidally locked by Barnard's star.

In this state, just like the moon, the planets will always use one side of their own "sun"

Tidal locking is common between planets and moons, but not so common in star-to-planet relationships,

Tidal locking has a lot to do with the mass of the celestial body and the distance between the two celestial bodies.

For example, although Rutanxing B is very close to Rutanxing, because the mass is large enough,

The effect of tidal forces on rotation is not efficient,

But in Barnard's star, Barnard's star, which is only half the mass of Rutan's, means that in Barnard's galaxy, the habitable zone is closer to the star.

In addition, the mass of the rocky planet in the west of the Rutan Star is small,

This makes tidal locking more likely to occur in such galaxies.

And on a tide-locked planet,

A scene of the day, always facing the sun,

On the other hand, it is forever in the cold and dark world,

Fortunately, the celestial bodies determined by the tides will have a "Libra movement" that does not fully follow the side of the eternal state towards the sun.

There will be about 5% to 9% slight wobble,

This 5% change is projected onto the morning and dusk line of a planet,

It will also form an extremely wide survival zone, and the human outpost is built on such a morning and dusk survival belt.

"I don't know what the scenery is like?"

Looking at the information about the establishment of the outpost, Yang Meng sighed secretly in his heart,

"Judging by the letters from the ground, the climate there is extremely harsh!

Some strange microorganisms have been found on the planet, but there are almost no large organisms due to the harsh climate! ”

As for what kind of bad weather exists there, the earth side has also explained,

One of the most dangerous to humans is the storm,

The essence of wind in nature is that the sun shines on the earth, because of the different environments, producing areas with different temperatures,

The difference in temperature will cause the atmospheric pressure to change.

The gas will flow from high pressure to low pressure, which will create wind,

And what kind of environment is the planet that is tidally locked, Yang Meng can fully imagine......

……

Yang Meng looked at the information about the outpost for a while, and then shook his head slightly.

The reason why he is so concerned about the outpost on Barnard,

Or because, according to his original plan, in his reply to Earth, he proposed to bring Xiaoguang to the human outpost,

After all, Xiaoguang's existence is very abnormal, and he has a history of invading his consciousness.

If such an existence were brought directly back to the solar system, he would not be sure if the light would pose a danger to humans.

It is undoubtedly safest to take it to Barnard Star, which is 5.9 light-years away from Earth, and conduct research there.

"The outpost of humanity has been built today,

In this way, Fang Yu of the forward outpost can also be implemented, and I don't know how the Earth side will reply to such a proposal? ”

"If the human decision-makers asked me to bring the light directly back to the solar system, how would I reply?"

Yang Meng thought silently for a while and then shook his head, not dwelling too much on this issue.

Immediately after that, Yang Meng looked at another issue he was concerned about,

"Where have the gray forces gone?"

According to Yang Meng's original idea, the gray forces are likely to go to Proxima Centauri.

If the environment of the Barnard system is harsh,

The environment of Proxima Centauri is no longer able to meet the basic conditions for human survival.

Although where the environment is terrifying,

If you want to supplement some resources,

Just like he ventured to Nanhesan, it is okay to make a short stay and leave quickly after fishing for resources.

It is also out of this consideration that Yang Meng believes that the gray forces may be in front of the Proxima Centauri.

After all, the Ke Yin Bo belt, where the gray forces were originally located, had very scarce resources.

After escaping the solar system, you need to find a place to replenish your resources, and Proxima Centauri is a great destination.

"From the perspective of time, the earth side should be able to determine the general direction in which the gray forces can escape."

Yang Meng silently calculated the time,

In the past 27 years, if you calculate at the speed of light at 10 percent, in this time, the gray forces have escaped a distance of 2.7 light years.

If those gray forces do not care about their own safety,

Flying in one direction despite wear and tear, so that the spaceship you pilot can keep flying at 20% of the speed of light.

Then in these twenty-seven years, it is enough for the gray forces to escape to Proxima Centauri.

However, when Yang Meng found information about the escape of the gray forces, he found that things were not so simple.

Just like Yang Meng thought before, he could predict the direction in which the gray forces might flee,

The human hierarchy can also anticipate where the gray forces will go,

Therefore, after the gray forces escaped from the solar system, under the unanimous consultation of the human high-level,

Send a pursuit party to Proxima Centauri,

And this operation is also the first time that human beings have taken the initiative to send force forces to the outside of the solar system.

Soon the human alliance detected that an obvious signal source went to Proxima Centauri.

But when the human alliance chased out a certain distance, they found that the signal source was very likely to be fake.

In order to escape from the solar system, the gray forces maintained a state of silence.

The sudden appearance of such a signal source today inevitably raises suspicion in decision-making.

After using a high-power detection device to detect a large number of directions in the direction of Proxima Centauri,

The combined forces of the human race, basically determining that the gray forces in front of Proxima Centauri are only a small part,

Most of the gray forces have disappeared,

As for where it went, the Earth side did not find it.

Although the gray forces that go to Proxima Centauri are only a small part,

But the human decision-makers decided to send a pursuit team to capture this part of the gray forces, hoping to find out from their mouths where the rest of the gray forces fled?

As for whether the arrest was successful,

Because of the time difference, Yang Meng did not receive any information in this regard:

"So the gray forces are gone?"

Seeing this, Yang Meng frowned slightly,

This gray force, which is already lawless and often kicks the bottom line of human morality, if it wanders back to the periphery of the solar system, it is entirely possible that it will be an interstellar pirate.

In this case, the letter from Earth also reminded him that if he has already embarked on the opposite path, he should be careful of the gray forces.

"The gray forces don't have Proxima Centauri ahead, so where are they going?"

"The Barnard system, which already has an outpost of humanity,

After learning about the flow of the gray forces, the human forces will also strengthen the defense of the outpost, and if the gray forces are in front of them, they will undoubtedly be in the net! ”

"Decision-makers in the gray forces should also understand this!"

"If it weren't for the Barnard system ahead, where would they go?"

Yang Meng thought for a while,

There are not many stars around the solar system, and there are not many target points to choose from.

In Yang Meng's view, the gray forces, the next place they can go to may be the Woolf 359 galaxy!

The Wolff-359 galaxy is the third closest star system to the solar system.

And it's a relatively stable single star system, and there are rocky planets in this galaxy.

But because the mass of the star Wolf-359 is extremely small,

The range of thermal radiation is limited, so the environment of this star system is extremely cold,

But as a stable single star system, the cold is not something insurmountable.

Humanity's decision-makers are also considering setting up outposts in this galaxy.

But the Wolfe 359 galaxy is a little far away from the solar system.

Although this galaxy is the third closest star system to the solar system,

But the distance between this galaxy and the solar system is still more than 7 light-years.

With the current space technology of mankind, it is already a very difficult thing to get to Barnard.

And Barnard is not in a straight line with the Wolff 359 system.

In the case where it is not possible to use the Barnard system as a transit galaxy

If humans want to travel to the Wolf system, they need to travel a distance of 7.8 light-years in one breath.

There is no stop in the middle, and there are many problems involved.

In order to be able to bring more people to the galaxy in front of us, a spaceship large enough is needed.

And the environment in that galaxy is even worse than that of Barnard's system, and more life-sustaining equipment needs to be prepared.

For various reasons, the decision-making class in the human race has been in a state of debate about the construction of the Wolff 359 galaxy outpost.

And it is in the gap between this controversy that the gray forces have the opportunity to flee into this galaxy.

"But will they really be in front of Wolfe 359?"

Yang Meng couldn't be sure, judging from the previous crimes committed by the gray forces, the human beings in the gray forces could no longer be measured by the human minds of the real people.

After thinking for a while, Yang Meng let out a sigh of relief and turned off the screen delivered on the retina,

Then he looked at the galactic cantilevered arms in the porthole,

Just as the earth side is worried that he will encounter gray forces, Yang Meng is also thinking about this problem:

"What if one day I encounter a gray force?"

In the vast universe,

The chance of two ships encountering each other directly is almost zero,

But human beings are living beings that depend on the existence of matter.

Whether it is the gray forces, him, or other human beings, they can't wander in the universe for a long time.

The high-energy particles of the universe, dust matter, can cause wear and tear on a spacecraft traveling at more than 14% of the speed of light.

The non-recyclable materials in the spaceship will slowly wear out as time passes.

Typically, the ship will carry enough supplies to offset these losses.

If these supplies are insufficient, you will need to find a planet to replenish the resources on the ship.

In a hurry to escape from the gray forces, you have to dock in a galaxy to replenish supplies,

Galaxies around the solar system are likely to be targeted by gray forces.

In this case, Yang Meng also has a certain chance of encountering gray forces,

"What should I do if I encounter a gray force?"

"Resist or run away?"

Such a question once again appeared in Yang Meng's mind.