Professor Wu's sense of regret is mainly from the perspective of risk, and he thinks that if this trip to space fails, it is a great pity that such an excellent talent will not be able to return.

Professor Wu listened to Xu Jiawei's answer and was very satisfied with his modesty, he said: "After joining Lao Shen's team, your progress has been faster, and you have become a well-known expert in China." The last time the National Astronomical Academy was discussing the rescue operation in outer space, Lao Shen advocated going, and you were mentioned at the meeting, saying that your analysis was very reasonable, which further enhanced his confidence in the rescue. ”

"I'm ashamed, if there are achievements, they are the result of Professor Shen's careful cultivation. Xu Jiawei said. I didn't expect Professor Shen Wei to value himself so much behind his back, such a major action, and I still have the right to speak in the heart of this authoritative expert, and to promote myself at such an important meeting, it may be difficult for anyone except my biological father to do it, Professor Shen Wei is really admirable.

"To be honest, I am split equally for and against this operation, why? The operation itself is indeed very tempting, and if it succeeds, it is an unprecedented leap forward in world astronomy, and the gains are incalculable, and it cannot be overestimated. But it is full of challenges, risks still exist, and there are too many unknown factors in outer space. Professor Wu said.

"But in the end you voted yes, haha. Professor Shen Wei said with a smile.

"I weighed the pros and cons and made up my mind at the last minute. ”

"How are you going to arrange this simulation training?" asked Shen Wei.

"Let them visit the Mars base first, it's not easy to come once, half of them don't know when they will be able to fly back to space, and the other half of them will have a chance to come to Mars in the future. Next, we will go into the simulation environment until the end of March next year, that is, the time when the spacecraft is planned to be built, a total of half a year, and after the end, those who pass will set off here after a little preparation. Do you have any opinions?"

Professor Shen Wei expressed his approval of this arrangement of the base, and after sitting for a while, he got up and said goodbye, saying, "If I have any high opinions, I will hand them over to you." ”

"Don't worry, disciples of old classmates, I will definitely take care of them like you in life. But ......"

Shen Wei interrupted Professor Wu's words and said: "I know that I know, I don't need to take care of the final assessment, I also said in front of my classmates, everything depends on my own efforts, and at this level, the most important thing is not to defeat others, but to defeat yourself. Students, I'm leaving, good luck to everyone. ”

Professor Shen Wei left the Mars base and soon returned to the laboratory, he had to pay attention to the movements of "Tianhua No. 1" on the one hand, and on the other hand, he also had to send and receive information at the end of the day, because the level of the assistant was not as high as Xu Jiawei after all, and he couldn't recruit disciples for a while. In addition to these tasks, one of the most important tasks is to design the path, as the commander-in-chief of the rescue operation, this is a job that he must do without being sloppy, he has to design the most efficient and least dangerous path. The preliminary assumption is that the first stop is Proxima Centauri's planet 2, this point is a must-go, Xu Jiawei also repeatedly emphasized that he should go up to investigate, and then 100 light years away from this suspected gravitational source area is also the only way, as well as the big black hole in the center of the Milky Way, this excellent location for acceleration, out of the Milky Way, marching to the Taizhou Bay black hole area, 1 million light years with an inexplicable area, it seems that the black hole is not a black hole, and the gravitational source is not like, this place should be careful, you can make long-distance observations, and then 100 million light years to the east there is a galaxy similar to the solar system, you should find a foothold to rest, and then go to the past according to the current ability to observe clearly, can only rely on two-way interaction to find a foothold, the general direction anyway to fly east. Professor Shen Wei's preliminary path has been sorted out, and he plans to spend half a year to refine it, with the help of astronomical telescopes, and observe along the designed path, especially for places 100 million light years away, to be careful and careful, and collect as much information as possible.

In the Mars base, the simulated environment training is also carried out in an orderly manner, after the trainees enter this environment, they gradually lose the concept of time, because there is no time device set up, and there is no fixed meal time, everyone eats freely, and they can't see day and night, and they don't know how much time has passed. Among the 14 trainees, 2 women and 12 men, in addition to Lin Shanshan, another female is named Su Xiaojia, Lin Shanshan is two years old, engaged in the study of cosmic gravity, and is Chen Jie's competitor.

After Xu Jiawei and Lin Shanshan completed the simulation from their respective posts, they came to the biosphere to sit down. The two asked each other about the end of the day at the same time.

"How could it be such a coincidence?" both laughed to themselves.

Xu Jiawei asked Lin Shanshan to say first, Lin Shanshan said: "The professor in the laboratory is now responsible for the work, the work is very busy, and the assistant can do some auxiliary work at most, such as the contact with the end of the sky, the professor must do it himself, and no one else can replace it." ”

"I don't know what's going on at the end of the day. ”

"There shouldn't be any major changes, but there are often some inexplicable sentences that can't be translated, I don't know what it means, and I think the professor may not be able to crack it. ”

"The professor is not as good as you when it comes to cracking codes. ”

"You only see one side of the story, although the professor doesn't care much about direct decipherment, but he can give us the direction of decipherment, and with this direction, it is much easier for us to decipher. It's just that the professor is humble and likes to record his achievements on our disciples, so you can only see that I have successfully deciphered it, but you can't see the professor's guidance. ”

"Isn't it, our professor is such a good person. Xu Jiawei felt that Professor Shen Wei was good from the bottom of his heart.

"Jia Wei, you said that after this simulated flight, will the four of us also go on the expedition together?"

"Honestly?"

"Of course. ”

"I'm confident in myself that my competitors aren't a threat to me. Ma Biao is no problem, I carefully observed his opponent, and the psychological quality is obviously stronger than him, and other aspects are similar. Chen Jie's competitor is a woman, named Su Xiaojia, and the two are equal, but if I am the final decider, I will choose Chen Jie. Xu Jiawei analyzed everyone.

"Why?"

"If you can use men, you don't need women, after all, it is risky to go to space, and it is better to protect female compatriots. Xu Jiawei said with a smile.

"What do you mean, you look down on our women, right?" Lin Shanshan pretended to be angry.

"How can this be regarded as looking down on women, this is out of care and love. ”

"Then you analyze my opponent. ”

"Your opponent is strong. Xu Jiawei said.

"Huh?" Lin Shanshan looked at Xu Jiawei with wide eyes, "But I feel that I am better than him, and I am very confident in myself." ”

"That's right, although your opponent is strong, you are stronger, it's not that I'm praising you, you're definitely selected. Xu Jiawei said.

"So the four of us are on the march together again. ”

"I'm very optimistic about all four of us, and unless something happens, we should all be selected. ”

Suddenly, there was a loud bang in the spaceship, which knocked everyone to the ground, and bounced twice on the ground, and then the lights went out, and everyone except Xu Jiawei and Ma Biao screamed in shock. Oops, maybe something hit the sim and it was a mess. Xu Jiawei and Ma Biao were very sober, Xu Jiawei said loudly: "Students, don't panic, be quiet, try to stand up, can you stand firm?"

I don't know who let out a long sigh of relief and said, "Hehe, it's okay, I stood up, and I didn't feel like I touched anything." ”

Xu Jiawei said: "That's good, everyone stand still and don't move, take a deep breath, count in your heart, count from 1 to 100, and don't make a sound until you finish counting." ”

Although everyone is carefully selected, in the face of this sudden change, it is still impossible to calm down immediately, the gap in psychological quality is still obvious, and some people are still in a panic.

Ma Biao continued: "Everyone listen to Xu Jiawei, don't mess up, don't mess up, otherwise you will make a mistake, if you go wrong in such an environment, start counting now." ”

I don't know who is still panicking, and said, "It's better to fumble with the escape switch and go out and talk about it, in case it explodes." As soon as his words fell, there was really another loud bang, and the person who had just stood up was shaken down again. At this time, the situation was even more chaotic than just now, there was no light, it was so dark that you couldn't see anything, and it was inevitable that when you were shaken, you would press on others.

Xu Jiawei said: "Don't be chaotic, calm down, the more chaotic the more you can't solve the problem, only by calming down, can you come up with a solution." ”

Ma Biao also said: "Students, really don't mess around, follow Jiawei's method, start counting, only by calming down can you come up with a better way." ”

At this time, Lin Shanshan miraculously calmed down, she identified Xu Jiawei's position according to her voice, unconsciously leaned to his side, and said: "Students, without power supply, we can't contact the outside world, don't we still have oxygen? ”

Everyone finally fell silent, and the only sound in the simulated spaceship was breathing.

After being silent for a while, Yang Qi, who studied biology, suddenly broke his calm and said, "I remember, the exit is at the back of the biosphere." Don't move, everyone, I'm groping to find it, otherwise I won't be able to find it. ”

Xu Jiawei said: "Because I can't see and can't identify the direction, let's touch the things on the side and report it, so that Yang Qi can find the location of the exit." ”

Everyone did as Xu Jiawei said, and reported what they touched on the side to Yang Qi.

Yang Qi slowly groped according to everyone's prompts, found the location, he touched the opening device, took a deep breath, and thought about the operation specification, although this specification is well memorized, but the critical moment has to be calm, to ensure that nothing goes wrong, he feels that he has no distractions, so he groped and tried to open, when he pressed the button, suddenly a bunch of sparks came out, and then a huge explosion sound, and in an instant, the debris in the spacecraft smashed overwhelmingly towards everyone.

It's over, the simulated spaceship has exploded!