Tian Lao and Lin Dong only stayed for a day before leaving, and Su Yichen didn't know if his request could finally be approved, but he knew that he had to get on the Vanguard, and he also had to take Luo Yan with him.

As for the reason, he explained three points to Tian Lao and Lin Dong, but there were two points he didn't say, one is Luo Yan's situation, although Luo Yan has entered hibernation, but hibernation technology is not a panacea, Luo Yan's current situation is quite optimistic, but who can guarantee that there will be no accidents in the future? If you want Luo Yan to heal as much as possible, wake up from hibernation, and land on the Pluto base, using Ike's life-sustaining equipment inside the base is the best choice.

And the second point, this is going to talk about his dreams, three times in a row into strange dreams, consciousness into the Pluto base, Su Yichen's heart always vaguely felt a little uneasy, the key to this uneasy factor is the three-dimensional star map and the coordinates on the star map, until now he has not figured out the specific location of this coordinate and the meaning it represents.

When he obtained the hibernation technique in the dream, Su Yichen wanted to experience another dream countless times, but the strange thing was that after the last dream, Su Yichen had never returned to the dream for more than three years. As time passed, he became more and more confused about the star map and coordinates, and he didn't know when it started, and a kind of uneasiness gradually enveloped his heart.

To figure out this qiē, Su Yichen had only one way, and that was to personally land on the Pluto base and enter the control room. And to achieve this premise, that is, he must board the Pioneer and take off from Earth.

Nearly a year has passed, and the Pioneer spacecraft has been completed in the past year, and except for some minor trivial work, the entire spacecraft, including the launch vehicle for auxiliary power, is also ready.

More than ten days ago, Su Li's smart module was moved out of the base. Officially moved to the Vanguard. Immediately, Luo Yan and his hibernation device were also placed in one of the cabins of the Pioneer, although the spacecraft has not officially taken off, but the internal system of the spacecraft, that is, the artificial intelligence Luo Yan, has begun to work, according to Su Yichen's requirements to carry out a series of self-inspection work on the spacecraft.

"Director Su." Su Yichen came out of the simulation cabin. Covered in sweat, Gao Jian hurriedly stepped forward and handed him a towel.

"Thank you." Taking the towel, Su Yichen wiped his sweat, the simulation cabin is used to adapt to the gravity of the spacecraft when taking off and the simulation training of the weightlessness in space, according to the national requirements for astronauts, this simulation training must be carried out before takeoff, so as to reduce the impact of the environment on the astronauts during takeoff.

Wiping his sweat, Su Yichen glanced at Gao Jian beside him, since Gao Jian served as his secretary until now. More than six years have passed in the blink of an eye, and in the past six years and nearly seven years, Gao Jian has been with him almost all the time, and now, when the Pioneer is about to enter the countdown, the time for them to break up will also come.

"Xiao Gao, I've already called Bureau Xu, and he will rearrange your work when I leave. I've been wronged by my side all these years. ”

Gao Jian shook his head, and there was no joy in his eyes to return to the bureau and work again. On the contrary, his eyes were full of reluctance and affection.

At the beginning, Xu Ke asked Gao Jian to protect Su Yichen in the name of serving as Su Yichen's secretary, Gao Jian resisted this job from the beginning, as an excellent scout, it was a deep sadness to leave the post he loved and not be able to charge on the front line. In his opinion. He is like an orphan abandoned by the organization, when his comrades fought bravely and performed miraculous feats, but he was like an outsider who had been forgotten, and followed Su Yichen to the Northwest 863 base. Living a monotonous and boring life every day.

Although Gao Jian didn't bring love into his work, and even if he performed this task very well from the beginning, it doesn't mean that he doesn't have a pimple in his heart about this job. But as time went by, Gao Jian slowly changed his opinion, and the key to this was Su Yichen's influence on him.

As he learned more about Su Yichen and the more detailed he knew, the more he understood why Xu Ke had entrusted him with such an important task. More importantly, Gao Jian was moved by Su Yichen's loyalty to the country and the nation, and his pursuit and dedication to the cause of science, especially Su Yichen and Luo Yan, who felt a little incredible at the beginning of the union of the two, but in the end he was moved by their love, so he completely changed his attitude and willingly followed Su Yichen's side.

And now, the separation is just around the corner, in the past six years, almost the two who get along with each other are about to separate, Gao Jian has no surprises in his heart at this moment, only deep reluctance and attachment.

Gao Jian's expression fell in Su Yichen's eyes, Su Yichen also understood what he was thinking, smiled and handed him the towel that he had wiped, put on his coat and walked out, Gao Jian was slightly stunned, and hurriedly followed.

The time for the Pioneer launch has been set, just nine days later, at 3 a.m. next Saturday. There is a reason for choosing this time, the determination of the launch time is through a series of complex calculations, you must know that the celestial bodies in the universe are in constant motion, whether it is the major planets of the solar system, or asteroids, comets, etc., including the earth, their orbiting positions are constantly changing all the time.

To use the simplest example, it is like humans going to land on the nearest satellite to the Earth, which is the Moon. Prior to controlled thermonuclear fusion, the moon landing was rocket-propelled and the lunar module, and due to the limitations of fuel and the requirements of the landing angle of the moon, coupled with the change in orbit between the Earth and the moon, an optimal time had to be calculated. This time takes into account the length of the distance from the launch of the earth to the moon landing, the angle of the moon landing, including the return of the moon landing, and other factors, and once this time period is missed, the success rate of the moon landing will drop sharply.

With the advent of controlled thermonuclear fusion, the propulsion power of spacecraft has theoretically been solved, but there is still a problem, and that is the special orbit of Pluto in the solar system. Different from the orbits of the eight planets in the solar system, Pluto's orbit is the most special, it is an elliptical orbit with an inclination, and its operation mode can be said to be unique in the solar system.

The problem is that the distance between Pluto's orbit and the Earth is so far apart that the shortest distance between Pluto and the Earth is calculated to be only 27.86 AUs when Pluto approaches Earth, while the longest distance is 47.13 AU. In addition, Pluto's peculiar oblong elliptical orbit, eccentricity as high as 0.25, perihelion even ran into the orbit of Neptune at the nearest time, and it will be very close to the orbit of Jupiter and Saturn when the orbit is running, and Jupiter and Saturn, the eldest and second of the two solar system planets, because of their huge volume and mass, often attract asteroids, comets and other celestial bodies in the universe to "patronize", and more importantly, Jupiter's "big red spot" has a huge impact on spacecraft flying close to orbit. In order to avoid various uncertainties, the optimal launch time is determined after careful calculations. (To be continued......)

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