A day later, in the middle of the night, the Ring-2 space plane made a launch mission.

It took Pang Xuelin, Cheng Xin, Weide, Zhang Beihai, Hines, Ding Yi, Cao Bin and Wang Zhiping, a virologist responsible for Luo Ji's treatment, to successfully lift off.

In addition, the cargo hold also contains Luo Ji's hibernation capsule and a thought stamping machine that has not yet been engraved into the proposition.

After nearly ten minutes of flying in the atmosphere, everyone finally saw the blue planet through the porthole.

"It's so beautiful!"

Cheng Xin took off the mask of the spacesuit that he had to wear during the take-off stage, revealing a slightly pale face, looking greedily at the home below through the porthole.

Pang Xuelin skillfully unbuckled his seat belt and floated freely in the cabin.

The long space journey in the Martian world made him feel no discomfort with this level of weightlessness.

Vader, Zhang Beihai, Hines, and Cao Bin also looked at the world below curiously.

Cao Bin said with a smile: "After today, I can finally tell my students with confidence that the earth is indeed spherical, because I have seen it with my own eyes!" ”

The crowd couldn't help but laugh.

Among them, except for Pang Xuelin, the only one who has really gone into space is the eldest Ding Yi.

"More than 20 years ago, I flew to the International Space Station on a NASA space plane, but I didn't expect that after so many years, I would still have the opportunity to go to space." Ding Yi said with some emotion.

Pang Xuelin laughed and said: "Professor Ding, with the development of technology, the cost of aerospace is getting lower and lower, and the comfort will be improved, and you will have the opportunity to go to space in the future." ”

Ding Yi smiled and waved his hand and said: "I'll forget it, anyway, I can't do scientific research now, and there is no point in going to space, so it's better to take students on Earth." ”

Pang Xuelin smiled faintly: "This is not accurate. ”

Pang Xuelin turned around in the personnel cabin, and soon, the commander's voice sounded: "Professor Pang, in five minutes, the Star Ring-2 will change its orbit and fly towards Gravity, please return to your position and sit down as soon as possible!" ”

"Understood!"

With the help of the handrail on the bulkhead, Pang Xuelin returned to his position lightly.

Cheng Xin, who was sitting next to him, said curiously: "Professor Pang, why are you so proficient in flying, I remember that it seems that you are going to space for the first time." ”

Pang Xuelin smiled: "Maybe it's talent, I feel that it's quite simple to float in weightlessness!" ”

……

The orbit change flight went smoothly, and twenty minutes later, everyone could already see the huge figure of the "Gravity" through the porthole.

The Gravity is by far the largest and most powerful war machine ever built by humanity.

With a total length of more than 600 meters and a diameter of nearly 70 meters, it still has the shape of a cigar as a whole, with a dull silver surface reflecting a cold metallic texture in the sunlight.

This is a super warship created by Star Ring City with countless resources, and even the "Oasis" and "Natural Selection", which have been commissioned before, cannot be compared.

In comparison, the Star Ring-2 spaceplane, which is also not small, seems to have become a small sampan.

Pang Xuelin noticed that when he saw the "Gravity", Zhang Beihai's eyes were motionless staring at the behemoth outside the porthole, and the whole person's attention seemed to be attracted by this super battleship.

However, Pang Xuelin didn't care, anyway, whether it was the "Oasis", "Natural Selection" or the "Gravity" that had just been commissioned, they did not have the ability to fly interstellar, and he was not worried about Zhang Beihai running away.

Others also let out exclamations.

Although they had seen the construction of the "Gravity" through video materials when they were on the ground, the first time they saw this kind of scene, everyone was still shocked.

Ten minutes later, under the operation of the commander, the Ring-2 successfully docked with the "Gravity" spacecraft.

Pang Xuelin and his entourage passed through the transition cabin and entered the Gravity.

Subsequently, under the leadership of the guide, everyone followed the passage in all directions in the Gravity to the bridge of the Gravity.

The Gravity's bridge is located in a ring in front of the ship near the edge, and the bridge rotates around the ship's axis, using centrifugal force to simulate the gravitational environment on Earth.

The bridge area is very large, a bit like a space command center on the earth, which is full of various holographic displays and various operation stations, and there are more than 100 crew members on duty.

The most eye-catching thing is the holographic display at the front of the bridge, which simulates a porthole.

At this time, the image of the earth captured by the extravehicular camera is being transmitted to the holographic display in real time.

Xu Shaomin, the captain of the "Gravity", led more than a dozen senior officers of the "Gravity" to welcome everyone in the bridge.

"Professor Pang, I am Xu Shaomin, the captain of the Gravity, and here, on behalf of the officers and men of the Gravity, I welcome you to come and inspect! Salute! ”

Xu Shaomin quickly raised his right hand upwards and made a solemn military salute towards Pang Xuelin.

The dozen or so senior officers behind her also saluted.

Pang Xuelin nodded and smiled at Xu Shaomin, and said, "Captain Xu, hello everyone, you have worked hard during this time!" ”

"It's not hard at all, it's our honor to be able to become a crew member of the Gravity!"

Xu Shaomin said with a smile: "Professor Pang, let me first introduce you to the leadership of our Gravity!" ”

Xu Shaomin is a handsome woman in her early thirties, and being able to become the captain of the "Gravity" at such an age is enough to show her ability.

"Good!"

Pang Xuelin nodded.

"Professor Pang, this is Gravitational Political Commissar Raul Clive!"

Clive is a white male, but when he saw Pang Xuelin, he was still very excited.

"Hello!"

"This is Vice-Captain Essen."

"Hello!"

"This is Zhu Yao, the head of the navigation department."

"Hello!"

"This is Sinclair Keane, the Minister of Mechanical and Electrical Affairs."

"Hello!"

……

Xu Shaomin introduced Pang Xuelin to the senior officers on the ship one by one, and when she introduced a young man with a Chinese face and a little handsome appearance, Xu Shaomin said: "This is our Minister of Aerospace Communications, Chu Yan!" ”

"Chu Yan?!"

Pang Xuelin was slightly stunned, and couldn't help but look at him twice.

Chu Yan stood upright, and saluted Pang Xuelin with a serious expression, Pang Xuelin kept his appearance firmly in his heart, stepped forward and patted him on the shoulder, and smiled: "Do a good job!" ”

"Yes!"

Chu Yan responded with some excitement.

In the original work, if Zhang Beihai is the father of the galactic humans, Chu Yan is the real head of the galactic humans.

In the original book, before the Doomsday Battle, Chu Yan piloted the "Blue Space" and two other interstellar warships to pursue the "Natural Selection" kidnapped by Zhang Beihai, thus escaping the catastrophe.

After the Doomsday Battle, the human fleet was completely annihilated, which proved Zhang Beihai's advanced vision.

Chu Yan and the others also obeyed Zhang Beihai's leadership one after another, and decided to form a starship human and follow Zhang Beihai to the New World to pioneer.

However, the crowd soon realized that the supplies carried by a single ship would not be able to support the next star system.

Unless you kill all the people in the other three ships, and then concentrate all the supplies in the four ships into one.

The chain of suspicion erupted within the four ships, and eventually, one of them was the first to attack the other three with infrasonic bombs.

Chapter Beihai they died one after another.

Only Chu Yan, when the other party launched an attack, actually evacuated the spacecraft in advance, and the crew entered the deep sea state, thus avoiding the blow of the infrasonic bomb.

The Blue Space then launched a counterattack and became the only survivor of the four ships.

Later, in the third part, Chu Yan and the others also led the Blue Space, using the four-dimensional fragments encountered by the spacecraft to defeat the three-body civilization water drop detector that pursued them, and at the moment of life and death of human civilization, they launched a cosmic broadcast to the three-body civilization, thus giving mankind a chance to breathe.

In the original work of the Three-Body Problem series, Da Liu doesn't pay much attention to Chu Yan, but no matter from which point of view, this person has a strong leadership and wise mind, even compared with Zhang Beihai, it is not far behind.

Pang Xuelin didn't know if the Chu Yan he saw today was the Chu Yan in the original book.

But either way, this person deserves his own attention.

After introducing each other, Xu Shaomin first took Pang Xuelin and them to eat a space meal, which was regarded as a dust wash for them.

Then, he directly took Pang Xuelin and his party to the lounge prepared for them.

In the next two days, Wang Zhiping began to officially treat Luo Ji in the medical cabin of the "Gravity", and Pang Xuelin and they visited around the Gravity every day to learn about the performance and combat effectiveness of the spacecraft.

It wasn't until a week later that Pang Xuelin was in the medical cabin and saw Luo Ji, who had completely recovered and sobered up!

"Professor Pang!"

When he saw Pang Xuelin, Luo Ji was a little surprised.

Then, he looked around and said in surprise, "Professor Pang, when is it now, where is this?" ”

Pang Xuelin smiled: "It's July 28, the 36th year of the Crisis Era, this is the medical module of the Gravitation spacecraft, and we are currently in geosynchronous orbit. Dr. Luo Ji, congratulations, the virus in your body has been completely cleared and you have recovered your health. ”

"36 years of the Age of Crisis?"

Luo Ji lowered his head and pondered for a moment, then raised his head and said suspiciously: "Professor Pang, I remember that stellar spell I issued, it shouldn't have worked yet, why did the United Nations wake me up?" ”

Pang Xuelin smiled faintly: "It's true that it hasn't worked yet, but it's not you who woke up in the United Nations, it's you who woke up in the Fleet International, and at present, on the earth, the United Nations no longer exists, and the Facing Wall plan will be taken over by the Fleet International in an all-round way." At the same time, I will be the Chief Consul of Fleet International! ”

"The United Nations is gone?! You're the Chief Archon of Fleet International?! ”

Luo Ji was obviously very surprised.

Pang Xuelin smiled and roughly described the development of the earth in the past thirty years or so to Luo Ji.

"So, Lan Yi...... Blue Seals, they're also in Star Ring City? ”

Luo Ji said a little excitedly.

Pang Xuelin nodded with a smile and said, "Dr. Luo Ji, as long as you assist us in completing the next tasks, after returning to Earth, you can see your wife and children!" ”

"Okay, whatever task you want to accomplish, I will definitely do my best to help!"

Pang Xuelin smiled faintly and said, "You come with me first!" ”

Pang Xuelin took Luo Ji to a cabin, and Cheng Xin, Vader and others had been waiting for a long time.

Pang Xuelin glanced at the people in the cabin, turned his head and said to Xu Shaomin, who was waiting beside him: "Captain Xu, you take all the others in the Aerospace Communications Department to evacuate this cabin, and at the same time close the hatch, close any audio and video recording equipment, and Minister Chu Yan stays!" ”

"Yes!"

Xu Shaomin hesitated for a moment, nodded at Pang Xuelin, and left the cabin with several crew members of the Aerospace Communications Department who were on duty.

Pang Xuelin's gaze swept over everyone present one by one, Cheng Xin, Weide, Hines, Ding Yi, Cao Bin, Zhang Beihai, Chu Yan, and finally, stayed on Luo Ji.

Cheng Xin's faces became solemn one by one.

This time they came to the "Gravity", and they never understood what Pang Xuelin was going to do.

Now it's really time for a showdown.

Pang Xuelin said: "Everyone here is someone I really trust. In the spirit of responsibility for all humanity, I hope that what happens next will become a secret shared by all nine of us here. Of course, also to prevent leaks, I would ask that you accept the Ideological Seal that Mr. Hines has prepared for you before leaving this cabin! ”

Ding Yi said, "Professor Pang, let's talk about what you're going to do next." ”

A faint smile appeared on Pang Xuelin's face, and he said: "Presumably, everyone should know that in the ninth year of the Crisis Era, at the hearing of Dr. Luo Ji's Facing Wall Plan, Dr. Luo Ji asked the United Nations to send a stellar spell!" ”

Everyone nodded, and turned their gazes to Luo Ji one by one.

Luo Ji's face changed slightly, and he frowned, "Professor Pang, what are you going to do?" ”

Pang Xuelin said: "At the hearing of the Wall Project that year, you asked the United Nations to send the three-dimensional coordinates of the 187J3X1 star in space into the universe through the stellar radio wave amplification function, and the United Nations later did so. ”

"Over the years, I've been wondering, what was Dr. Luo Ji's purpose in doing this back then? Why do the Trisolarans and ETO always want to kill you at any cost! ”

Luo Ji was silent, and the others did not speak, and the entire cabin fell into a strange silence.

"When I can't sleep at night, I like to get up from my bed and look at the stars, looking at the stars that I spent money to buy for me and Zhuang Yan. Then one day, when I was watching DX3906, I suddenly thought, will DX3906 have planets, will it also have civilizations? ”

"Oh, wait a minute......"

As he spoke, Pang Xuelin suddenly raised his head, as if looking at an unknown existence: "I know you are watching us, are you really going to continue to broadcast what I want to say in the next paragraph to the ETO people?" ”

……

Somewhere in an unknown cyberspace, in mid-air, the image in the gravity chamber transmitted by Tomoko suddenly interrupted.

"!"

Mozi scolded indignantly.

Qin Shi Huang, who was standing beside him, sighed and said, "Lord, you still don't trust us!" ”

Mozi said: "Qin Shi Huang, among the wall-breakers now, only the two of us are awake, do you have a way of thinking about the wall-facing person you are responsible for?" ”

Qin Shi Huang shook his head and said with a solemn face: "To be honest, I have been by his side for so many years, although I have been observing him, I have never understood his thoughts. Previously, no matter whether he made Star Ring City or any controllable nuclear fusion, it didn't mean anything to the Lord. But this time, he suddenly took Luo Ji in hibernation to the Gravity, and was immediately noticed by the Lord. It's a pity that I was sent to Australia at that time, and coupled with the lack of organizational development over the years, we no longer have the ability to infiltrate Star Ring City, let alone those space battleships. It is very likely that he is going to the Gravity this time to carry out a real wall project, but I don't understand, I can't understand why the Lord broke off his support for us because of his words! ”

Mozi said: "Wait, I think, the Lord must have a last resort!" The Lord should give us a reasonable explanation later. ”

"I hope so!" Qin Shi Huang sighed.

……

After Pang Xuelin said that paragraph into the air inexplicably, the atmosphere in the cabin suddenly froze.

Pang Xuelin smiled: "Where did I talk about it just now?" ”

Cheng Xin said: "Professor Pang, you said that you thought that DX3906 would have planets, and whether it would also have civilization. ”

"Oh yes, will DX3906 be civilized? Then I thought of something even more terrifying, the Centauri α and the Sun are just ordinary stars on the cantilever of Orion in the Milky Way, and the two stars that are only four light-years away have given birth to intelligent civilizations, so what about the hundreds of billions of stars in the Milky Way? Couldn't these stars give birth to intelligent civilizations? As long as these intelligent civilizations evolved a million years before us, then we can almost be sure that their technological level will be incredibly high. But where are they? Why don't they make a sound? Why can't we find any signs of extraterrestrial civilization in the universe? ”

Pang Xuelin's tone was very calm and unhurried, but Cheng Xin suddenly had a creepy feeling in his heart.

"So I thought about the strange stellar spell that Dr. Luo Ji made back then, and after thinking about it for a long time, I came to a terrible conclusion that there are indeed countless civilizations in the universe, but they all hide themselves."

"Why are they hiding themselves?"

Cheng Xin said strangely.

Pang Xuelin showed a bright smile on his face and said, "Because ...... They are afraid to expose themselves, and to expose themselves means death! ”

"Huh?!"

Cheng Xin couldn't help but cover his mouth lightly and widened his eyes!

Luo Ji sighed and said, "Professor Pang, it seems that you have also thought of it!" ”

"yes, I thought of it too!"

Pang Xuelin said: "Dr. Luo Ji, you can tell your secret now, you should know why ETO assassinated you back then!" ”

Luo Ji nodded and said, "I've seen Ye Wenjie!" ”

When the words fell, everyone raised their heads and looked at Luo Ji in surprise, only Pang Xuelin smiled faintly.

Luo Ji continued: "Ye Wenjie's daughter Yang Dong and I are high school classmates, after Yang Dong committed suicide, I went to sweep her grave, and I happened to meet Ye Wenjie. At that time, the three-body crisis had not yet broken out, and everyone did not know that there was such a thing as a three-body civilization. That evening, in front of Yang Dong's tombstone, Ye Wenjie suggested that I should consider studying the sociology of the universe, and told me about the two basic axioms and two important concepts in the universe. ”

"1. Survival is the first need of civilization. 2. Civilization continues to grow and expand, but the total amount of matter in the universe remains the same. The two important concepts are: 1. Chain of suspicion: both sides cannot judge whether the other is a well-meaning civilization. 2. Technological explosion: The speed and acceleration of civilization progress are not necessarily the same, and weak civilizations are likely to surpass powerful civilizations in a short period of time due to various reasons. ”

Ding Yi, Cao Bin, and Hines all had thoughtful expressions on their faces.

Vader, Zhang Beihai, and Chu Yan were expressionless, but from their flickering eyes, it could be seen that their hearts were not so calm.

()