Just as Yang Meng expected,

After learning that he was going to change course and fly to another galaxy,

Earth, as far as he began, began to follow the course he had planned,

Start sending information according to the new communication line, after all, it is a very time-consuming thing to pass the information to Yang Meng in a big circle.

But just to be on the safe side,

On the earth side, the old lines of communication are still used to transmit messages, and the new lines of communication are starting to work again.

As a result, in the twenty years that he has been dormant, there have been seven duplicate packets.

Yang Meng carefully checked the time when the packet arrived,

It can be found that in fact, the first year after he entered hibernation,

The ground transmitted information to him through the signal anchor behind the ship

And the so-called signal anchors,

That is, every time his spacecraft advances a distance, he throws a signal relay satellite behind the spacecraft.

This satellite, under the action of thrusters,

In a space of twenty astronomical units, there is a reciprocating motion.

This is a signal anchor.

The throwing position of the signal anchor point has been planned as early as when it left Nanhe San.

Its path and time have been transmitted to Earth via information packets,

After all, the spaceship is in a process of rapid motion,

The spaceship he was flying in traveled through space at twenty percent of the speed of light.

Position changes all the time,

And because, all kinds of problems encountered on the way, it is necessary to add or subtract the speed of the spacecraft,

The earth wants to be in the 11 to 12 year signal delay interval of the speed of light.

It is very difficult to accurately deliver the signal packet to Yang Meng's fast-flying spacecraft.

Therefore, according to the situation of signal delay, the calculation is carried out, and the signal anchor point is arranged in the case of Yang Meng's delay of one year.

Just like Yang Meng driving a car,

While driving fast, throw a target out of the car and let it plug into the road

Snipers who are thousands of kilometers away only need to shoot at a fixed target.

It's much simpler than shooting at a fast-moving target.

Signal anchors, which play such a role,

Even though the process of signal transmission is much simpler,

And there is no need for the signal to be relayed from the Rutan star, which takes a few more years,

However, it is not easy to put a fixed target.

The timing of placement is particularly important,

Whether it is early or late, it will affect the efficiency of signal transmission.

Fortunately, the supercomputing technology of this era is very developed, and the entire route is under Xiao Yin's planning, and Yang Meng does not need to think too much.

The speed and course of the spacecraft's flight, as well as the timing of the release of the relay satellite, were perfectly executed under Xiao Yin's control.

This is also one of the reasons why Yang Meng did not slow down and stay when he encountered brown dwarf galaxies before

Unless it is a crisis situation, the route to the Ross 128 system will not be easily changed.

And see, the earth side has begun to send information to the anchor point,

Yang Meng was also secretly relieved in his heart,

When such a situation arises,

It also means that the Earth has received the galaxy sent when he left Nanhe San,

It also means that the earth has responded to the matter of extraterrestrial civilizations.

Thinking of this, Yang Meng was excited and prepared to open the first packet transmitted through the signal anchor.

But when he saw that the encryption method used on this packet was still an ordinary encryption method, his expression changed slightly:

"Why is it still ordinary encryption!"

"Could it be that the existence of extraterrestrial civilizations is not an extremely important thing for the earth?

Or is it because the fact of the existence of extraterrestrial civilizations has been widely known to mankind,

There is no need to keep it secret! ”

With doubts, Yang Meng began to decrypt this data packet,

With the support of the decryption technology accumulated in the previous dormant cycle, Yang Meng quickly decoded the contents of this data packet.

It's still the same as the previous packet,

A lot of information is pouring out of the packets,

In order to make it easier to find information, the earth side thoughtfully placed a directory in the data package.

At this time, this catalog, through Xiao Yin's chip, and then through the nerve action potential,

Transmitted to Yang Meng's optic neural network, a screen was reflected in the bottom of his eye......

now

Yang Meng's vision flashed with some light,

He's flipping through the table of contents quickly,

The expression on his face gradually became serious:

"How so!"

"No?"

Yang Meng chuckled in his heart,

This time he carefully browsed the catalog again,

found that the earth side did not seem to have sent any response to the matter of extraterrestrial civilizations,

"Is this really the information that is relayed back through the signal anchor?"

Yang Meng was a little unconvinced,

He glanced at the signal transmission path again.

Seeing this data, it is indeed the first data packet received by the spacecraft through the signal anchor,

Yang Meng's expression also began to become strange,

"Could it be that the information on the ground is hidden in this packet by means of a code?"

The reason why he thinks this way is because when he was transmitting the message of consciousness protection before,

This encryption method has also been used on the earth side,

It's just that this encryption method is generally only used for auxiliary encryption, and the encrypted content cannot be too long.

And the matter of alien civilization is obviously an extremely complex piece of information,

According to Yang Meng's idea, the ground will not use such a method.

But thinking that there was still such a possibility, Yang Meng looked it up in the catalog,

"Generally speaking, if you use passwords, code words, etc., you should do some secret guidance in the directory!"

But he looked at the catalog again,

Still nothing

"Maybe the information is hidden in the concrete!"

"But if that's the case, it's a bit of a problem!"

Each packet delivers a massive amount of information,

Each data package contains various humanities, science and technology changes in human beings during the year.

In particular, humans can leave the solar system, and after establishing bases in other galaxies, the information generated each year is even more complex.

And in order to avoid the situation that pioneer astronauts have a sense of alienation from human society or emotional indifference over time because they are far away from the earth,

In the packet sent to the pioneer astronauts,

The degree of description of various information is not a simple talk,

Through various images, films, and even virtual scenes, the pioneer astronauts will feel that they have not left human society.

It is precisely because of this that

The information in each packet is very complex.

If Yang Meng wants to find the information segment with a code in this huge and complex information,

Obviously, it's a very time-consuming thing.

Faced with this situation, Yang Meng thought for a moment and stopped the distracting thoughts in his heart,

Looking at the next packet,

And this packet, the packet he just looked at is a duplicate packet.

It's just that the packet was transmitted through the signal anchor.

This packet is transmitted through the past path.

Although it is the same data packet, the time of arrival of the two is nearly two years apart.

"Maybe there's a clue on this duplicate packet?"

With this line of thought, Yang Meng untied the duplicate data packets,

After comparing the directory contents of two packets,

Seeing that the information above was exactly the same, Yang Meng stopped some unrealistic thoughts in his heart.

"I don't think the ground will use the same data packets to find different ways to compare and decrypt information to transmit information!"

Looking at the two identical data packets in his eyes,

Yang Meng pondered for a moment and began to look for some other key contents inside,

"Although the Earth side has not replied to me about extraterrestrial civilizations,

But there should also be inquiries about the ship's brief disconnection with Earth, and my change of course! ”

With this in mind, Yang Meng began to look for information on this,

Fortunately, this time he quickly found this information,

However, when he jumped to the specific information page according to the table of contents,

Seeing that there was only a small amount of content on this page, he frowned slightly,

On the information page, congratulations to Yang Meng on leaving Lutan Star and successfully returning to space,

and also expressed his approval of his behavior of changing course to Nanhe San to replenish resources,

And such a short content made Yang Meng feel strange,

If he is still near the earth, it is a very abnormal response.

But at this position more than a dozen light-years away from Earth, with a signal delay of more than 20 years

Humans cannot provide any help to astronauts,

can only say something verbally,

All this had to be overcome by the pioneer astronauts themselves,

If there is no extraterrestrial civilization, such a reply is normal,

"But what about the reply from the alien civilization?"

"From this response, it is clear that the Earth side has received the letter from me, but why ......?"

Yang Meng was very puzzled in his heart, such an important matter of alien civilization, the earth side turned a blind eye.

For a time, many thoughts arose in his heart,

He looked through the porthole and looked at the gorgeous galactic scene outside, allowing himself to slowly calm down,

"There must be a reason why the earth didn't mention the extraterrestrial civilization!"

"If you think about it carefully, this kind of problem can be considered in two aspects!"

"On the one hand, there is something wrong with me, and on the other hand, there is something wrong with the earth!"

As the sender of the original message, Yang Meng's first thought was whether the process of sending the message was normal?

"The packet is sent out after the whole package is encapsulated.

Some of these extraterrestrial civilizations are sent out separately, and some are encapsulated with other messages.

In the case of overall data verification encapsulation,

It is also impossible for some information to be lost without being discovered!

In this case, Xiao Yin, retrieve the records of the alien civilization that was sent at the beginning! ”

"Understood, retrieving!"

With Xiao Yin's voice,

A list of data appeared in front of Yang Meng,

Yang Meng quickly found the sending records of the two things mentioned in the reply letter on the earth side,

That is, he returned to space and planned to go to Nanhe San.

Yang Meng browsed the content of the message he sent at the beginning,

He found himself sending these two messages,

It contains a lot of data on alien civilizations,

As long as the earth responds to these two things,

It means that they have received the message he sent.

As for the loss of part of the information, it is even more impossible.

In the case of long-distance communication,

The receiver will first receive the verification packet to confirm whether the encapsulated data is lost.

For example, every time Yang Meng opens the data packet, the first information directory he sees is a relatively simple verification method.

If there is some kind of information recorded in the directory,

When you can refer to the catalog to find specifically,

However, this information was not found, which indicates that the information has been lost, and under the guidance of the directory, the specific content of the loss can be known.

Of course, the packet verification process is much more complicated than the directory comparison method.

And Yang Meng also used a large number of information verification methods in the information transmitted back to the earth.

"The Earth side must have received the message, and as the sender, I shouldn't have any problem here!"

Yang Meng once again confirmed the various data of the information he sent through Xiao Yin again, and confirmed this judgment.

"Could it be that there is something wrong with the earth?"

And when Yang Meng was going to blame the problem of the alien civilization not replying to the earth,

He swept his eyes and noticed a small light on the dormant platform:

"Wait! I have one more distraction here that I haven't ruled out! ”

Yang Meng, who saw Xiaoguang, suddenly recalled that when he was in the Rutan Galaxy, his state of consciousness had been disturbed by Xiaoguang.

"Is there a possibility that it was influenced by Xiaoguang and the information about the alien civilization was not sent!"

Yang Meng stared at Xiaoguang tightly,

At this time, the light on Xiaoguang's body was extremely weak, and there was no flickering state.

Through Xiao Yin's long-term observation for more than 30 years,

The small light in this state, completely dormant,

The last time Yang Meng woke up when he encountered a brown dwarf, he also tried to see if he could wake up the small light through sound.

However, it turned out that the name could not be awakened by the voice alone.

And in the face of Xiaoguang in this state, Yang Meng at this time obviously couldn't ask anything from it.

"If a small light in the Rutan system may interfere with the state of my message transmission,

But if the consciousness protection is strengthened, Xiaoguang should have no ability to interfere! ”

In order to determine what, Yang Meng calculated the time difference according to the time of the upgrade of consciousness protection.

In chronological order, the first packet in the Earth's reply letter was found after the consciousness protection was upgraded.

But when he opened the data package and browsed the contents of the directory, his expression became a little strange.

"Why isn't there a reply here about alien civilizations?"

He confirmed the content of the message to Xiao Yin again,

"When I sent the message, I also mentioned Xiaoguang's situation!"

"Could it be that something is wrong with the earth?"