Looking forward to the life after returning to the earth, the softest part of Su Yichen's heart was gently touched, and Luo Yan was the same, they decided to let go of everything after returning to the earth this time, learn from Wan Changchun to find a position in the school, and live a peaceful life in peace.

"I don't know what happened to Teacher Wan and Brother Lin." Thinking back to their home at Yuanshimen University, Luo Yan rested her head on Su Yichen's shoulder, and at the same time thought of their relatives and friends on Earth.

"It's going to be nothing, the medical level of the earth has developed to a very high level when we left, didn't we mention it last time we received the message, Ringo's heart has been cured, not to mention anything else. Besides, there are life-support devices at the Pluto base, and even if there is a temporary accident, the earth has hibernation devices, so maybe they will be even younger by the time we go back. ”

Luo Yan thought about it and nodded, what Su Yichen said made sense, now with the earth's medical level, it is not a problem for ordinary people to live past 120 years old, if you add hibernation equipment, then theoretically speaking, the life of earthlings can last longer, moreover, how powerful Pluto's life-sustaining equipment is, Luo Yan has personally experienced it, although the use of this device is extremely limited, and the annual quota is also very rare, but whether it is Wan Changchun or Lin Dong, and even Tian Lao and others, It is not a problem at all to get a place in their special capacity.

However, Su Yichen mentioned the message sent by the earth, and Luo Yan couldn't help frowning slightly, because during the normal flight of the previous voyage out of curvature, the Pioneer spacecraft only received a very ordinary greeting message from the earth, and the message was not much, and it could even be said very briefly, and the information of their relatives and friends did not mention it at all.

The return trip is anxious, and the closer you get to home. The easier it is for people to worry about it. The same is true for Luo Yan, the universe is so huge, and the individual human beings are so small, but people's thoughts and concerns can travel through a long time and space to the other side of the distant universe.

Because it is so far away from Earth, both the Pioneer spacecraft and the Earth side. It is also inevitable that there is a noticeable lag in the messages sent by each of them. Therefore, the information received by both sides is "old news", just like the information they received from the earth before, judging by the time, it was several years ago, and this time was even before they met Tang Le.

Extrapolating from this time, the Earth side may not have received the information that they have come into contact with the Blue Star Civilization, that is, they have met Tang Le in the universe. But that's okay, according to the plan for the return trip. In a few months they will sail out of curvature again, and by then Earth should be able to receive this message.

As the hour and minute tick passed, the Pioneer spacecraft and the medium-sized spacecraft of the Blue Star Civilization continued to follow the guidance of the star map towards the distant solar system. After more than four months, they once again got out of the curvature and returned to the normal state of flight, and after a certain distance of ordinary flight, they again entered the state of curvature sailing, and waited until the third time to get out of the state of curvature. Two years had passed since they left the Blue Star Civilization, calculated from the distance of the leap. A third of their journey has been completed. The small galaxy they stayed in was not the one they had passed through before they came, and the route of the return trip had been slightly adjusted according to the star map provided by the Blue Star Civilization and the departure and arrival routes of the Pioneer spacecraft.

After the spacecraft was out of curvature, Su Li was responsible for inspecting the Pioneer spacecraft to prevent problems with the ship's engines. As for Su Yichen and the others, everyone is busy. Who would have thought that a few hours later, Luo Yan was pleasantly surprised to report to Su Yichen that the Pioneer spacecraft had received a message from the Earth.

The letter from the family is worth 10,000 dollars, and it is a message from the earth. I don't know what's going on, the last time it got out of curvature, the Vanguard spacecraft failed to receive information from Earth. In fact, this situation is also normal, the universe is full of various complex factors, especially the changes of stars and planets, including the impact of asteroids, as well as the ubiquitous cosmic particles and rays, which will affect the transmission and reception of information.

Even if everything is fine, in the process of transmitting and receiving information, the information waves will also be distorted due to many circumstances, which is the same as the distortion of light through a massive celestial body. The distorted information wave will produce refractive and dissipation results, and there is even a situation where the information sent first arrives later because of this situation, and the information sent later is successfully received in advance because of the distortion of the information wave inadvertently through the curvature phenomenon that exists everywhere in space.

Just like this time, the information that Luo Yan just received is like this, and I don't know what the reason for this information wave is, according to the date attached to the message, it is actually a message from 4 years ago, according to normal circumstances, it is impossible for the information from 4 years ago to be received at this time, and it will take nearly ten years to reach their location.

This situation has been done once before, Su Yichen and they know that this is just luck, in fact, according to the probability, the natural curvature generation phenomenon is extremely low, but the transmission of information on the earth is carried out almost every day, so from the comparison of the entire transmission data, the situation that has been produced twice is still in the theory.

"What's the content? Is everything okay on the other side of the planet? When they heard that this was actually a "new message" from 4 years ago, all the crew members of the Pioneer spacecraft immediately became excited and hurriedly asked Luo Yan about the content of the message.

"Don't worry, the information still needs to be decrypted, you can wait ......." Luo Yan said happily, ten fingers operating on the computer, using the powerful spaceship brain to decrypt information. As an outstanding mathematician and artificial intelligence expert, this complex decryption formula was designed by Luo Yan himself, and even with the assistance of the spaceship intelligent brain, Luo Yan needs to personally input some key points, which are the "keys" to information decryption.

The spaceship's brain began to crack according to the program, and Luo Yan concentrated on entering her secret key at some key points of cracking, ten minutes later. The information decryption was completed, this was a message with a content of nearly 1,000 words, and when Luo Yan sent the content of the message to her personal terminal, everyone couldn't wait to read it.

Who would have thought that after just a few words, the joy on everyone's faces faded in an instant, and was replaced by an incomparably dignified look. On the bridge where there was laughter just now. Everyone fell silent, and when all the information was read, Gao Jian's face couldn't hide the anger that rose from the bottom of his heart.

"It's outrageous!" Gao Jian finally couldn't hold back his scolding: "These bastards, do they think that our earth civilization is easy to bully?" ”

Kevin. Although Adams was not as angry as the young and vigorous Gao Jian, the sorrow and anxiety in his eyebrows could not be concealed.

As for Su Yichen, he was even more silent, and continued to look at the message.

"Earth's going to be fine, right?" Luo Yan asked worriedly.

Su Yichen couldn't answer this question, according to the calculation of time, the current earth should be fine, but they can't know how the Gaia civilization has prepared, once the Gaia civilization is ready to use force after the breakdown between negotiations. No one can predict what will happen to the earth now.

As an earth civilization that has entered the cosmic civilization, although it has the ability to protect itself on the surface, compared with the old second-level civilization, the Gaia civilization, the earth civilization still has many shortcomings. Once the war breaks out again, no one knows what kind of situation the earth civilization that has just recovered from the previous war will cause.

But no matter how angry they are, or how helpless they are. However, the Earth Federation's decision to refuse to negotiate is still recognized. One cosmic civilization wants to be respected by another cosmic civilization, or to be recognized by other cosmic civilizations in the entire galaxy. Then this civilization must have its bottom, and even its backbone.

Su Yichen was carefully judging the gap between the Earth civilization and the Gaia civilization, calculating whether the Earth civilization would be able to hold the solar system after the war between the two civilizations broke out. In the end, Su Yichen judged that once the war broke out, the Gaia civilization would be able to destroy the earth civilization. But in this case, the Gaian civilization must have suffered almost unbearable trauma. If the Gaians had a bit of brains, they shouldn't have taken such a risk, the gap between the first-level civilization and the second-level civilization is not as big as imagined, plus the earth civilization also has dark matter means to counteract, it is not without a little power to fight back.

But Su Yichen is also worried. He is worried that the Gaia civilization, as an old second-level civilization, will attract other cosmic civilizations to attack the Earth civilization, if this happens, the isolated Earth civilization will not be able to protect its home planet at all, and its defeat is inevitable.

"One more question, one last question!" At this moment, Su Li, who was urgently recruited by Luo Yan, hurried to the bridge from outside, and she was followed by Tang Le, this guy chased Su Li and seemed to be asking his third question today, who wanted to wait for him to follow Su Li into the bridge and feel the solemnity of the atmosphere the moment.

"Hey! Hello everyone! What's wrong with everyone? Knowing the way of the earthlings, he waved his hand at Su Yichen and the others, Tang Le greeted, and then said with some trepidation: "Did I disturb you, I'm sorry......." ”

"It's okay, it's not your problem." Su Yichen waved his hand, no matter how Tang Le said that he was their honored guest, seeing that Su Yichen and they seemed to have something important to discuss, Tang Le turned around and left very interestingly, but before he could reach the door, he was stopped by Su Yichen.

"Wait!"

Seeing Tang Le turn around, Su Yichen got up and said, "I want to ask you a few questions, okay?" ”

"Hehe, don't be so polite, of course you can, what? Do you want to know the customs and habits of our Blue Star civilization? Or the preferences of the Blue Star people? Tang Le smiled and returned to Su Yichen's side and asked.

Su Yichen shook his head and asked bluntly: "As an emerging cosmic civilization, our earth civilization is not too clear about the universal norms between cosmic civilizations, do you know what this universal norm is all about?" ”

"Common Criteria? I'm sorry, but there are many general guidelines between cosmic civilizations, including business, politics, and military and other aspects, which are very cumbersome to explain carefully, and you also know that I am just a recent graduate, and I still know some general principles, but I ...... some special general principles. ”

Tang Le scratched his scalp and said a little embarrassed, but Su Yichen didn't care, he waved his hand to interrupt Tang Le's words, and continued to ask: "I'm not too interested in anything else, I just want to know if a civilization has not yet entered the cosmic civilization, that is, the primitive civilization state commonly known as the cosmic civilization, if it is attacked by a cosmic civilization in this situation, how is this stipulated in the general guidelines?" ”

"This problem?" Tang Le seemed a little surprised, and he said, "I know this, the academy has taught. ”

"Tell me about it?"

"Of course no problem!" Tang Le nodded and said, "Actually, many years ago, ten thousand years? 20,000 years? Or in a longer era, there is a lot of chaos between the civilizations of the universe in the entire galaxy, and I don't know how this chaos was caused, but it seems that the sudden disappearance of a powerful civilization caused the loss of restraint and balance ......between the civilizations of the universe. ”

Speaking of this, Su Yichen's heart jumped suddenly, could it be the disappearance of the Rand civilization?

Although he guessed so in his heart, Su Yichen did not change in the slightest on the surface, and still quietly listened to Tang Le's explanation.

"In the era of chaos, many low-level cosmic civilizations were attacked, and high-level cosmic civilizations also had no worries about plundering their weaker cosmic civilizations, and this situation lasted for a long time, as if it were hundreds of years. And the closer it is to the central region of the galaxy, the more intense such wars become, and in the past few hundred years, at least dozens of cosmic civilizations have been destroyed, and some medium and high cosmic civilizations have also been greatly damaged. ”

"And what about later?" Gao Jian asked on the side.

"Later, the war continued, and the flames of war spread from the silver heart to the surrounding areas of the galaxy, and more cosmic civilizations were involved, no matter what level of cosmic civilization was not spared, including our Blue Star civilization, which was already at the first level of cosmic civilization at that time. In order to protect themselves, the civilizations have united, and the melee has gradually developed into the war of the combined forces, and this fight is another few hundred years, this time can be said to be the darkest hour in the galaxy, and the history of our Blue Star civilization calls it a thousand-year disaster. (To be continued......)