Like other large aircraft, the "Zheng He" should fly around the earth for a few circles first, relying on the earth's gravity to obtain a faster initial speed, which can greatly reduce the fuel consumed for acceleration.

The initial velocity of 20 kilometers per second, based on Einstein's mass-energy conversion formula and the huge mass of the "Zheng He", can obtain a huge energy demand like astronomical numbers, and use the gravity of large-mass celestial bodies to fly. This is a course that must be learned in space navigation.

The Zheng He relied on the earth to obtain a good initial speed, identified the direction of Mars, and the powerful nuclear fusion engine began to start. Relying on temperatures of more than 100 million degrees, it directly vaporized and ionized the air, producing unparalleled driving force.

Even though the "Zheng He" is of great mass, its speed has quickly accelerated with such powerful power. It has reached a speed of 100 kilometers per second in a short while, and the speed has continued to increase. After all, this time the range is really too far, and it is the furthest range in human history!

The first station of the Zheng He is Mars. The close distance between Mars and Earth is about 55 million kilometers, and the farthest distance is more than 400 million kilometers. The close contact between the two occurs about every 15 years. The last time the two planets were close was in 2008, with the distance between the two being 57.6 million kilometers.

It is obvious that the distance between Mars and Earth at this time is not the closest distance. The distance between Mars and Earth at this time is about 100 million kilometers. Such a long distance, even at a speed of 100 kilometers per second, it will take nearly 300 hours. More than 12 days. If the time taken to accelerate and decelerate is included, it will be even longer!

An hour later, the Zheng He hurriedly passed by the moon without stopping. The energy consumed by deceleration was greater than that of acceleration. Acceleration could rely on the gravity of the earth, and there was no way to deceleration.

"Report to the captain, everything is running normally!"

Li Jun nodded, and then personally checked all the data. The communication was normal, and the quantum communication technology was still very awesome. The power system had been turned off, and the speed was as high as more than 100 kilometers per second. The energy consumed to accelerate would increase in geometric multiples. It was very unprofitable. It would be better to rely on inertia to fly down.

After inspections one by one, the condition is perfect. It is not a loss. It is a scientific expedition ship built by a huge amount of money and the hard work of many scientists in the institute. This "Zheng He" can be said to be the most peak spacecraft in humanity and the crystallization of current science and technology.

"Everyone takes turns to rest! Always pay attention to meteorites and meteors in the void! Notify me as soon as possible if there is any situation!"

The long journey is very boring. There is nothing in the void. Except for the inconspicuous meteorites that occasionally pass by, it is really nothing. The bright earth in the distance and its friends are also following the trajectory of billions of years under the gravity of the huge fireball further away, but their outlines are getting smaller and smaller.

After Li Jun finished his order, he returned to his room. The Zheng He was very huge, but it only loaded 1,000 people. Each of them had a relatively good small space, 3 meters long, 4 meters wide, 2 meters high, and was close to the edge of the spacecraft, so he could watch the scenery outside at any time.

According to usual practice, Li Jun first had a video call with his wife. The long and boring journey was a torment for people's heart, and only by contacting their family could he comfort them.

The call of more than an hour made Li Jun smile. Dong Qian had a good life under the care of both parents. Her son was very obedient and always remembered that she wanted to help her father take good care of her mother and baby. She stayed by her mother's side, which was very different from her usual naughty personality, which made Li Jun look at her with admiration.

Turning off the communicator, Li Jun sat cross-legged and started Yuanli practice. This is also a good way to polish time. When immersed in Yuanli practice, he could not feel the loss of time at all.

The cultivation of Yuanli is something that the whole company attaches great importance to, especially on the "Zheng He", where everyone is forced to practice for more than 2 hours a day.

Because the "Zheng He" has to travel in the void for a long time and is out of the influence of gravity for a long time, it will lead to the loss of bones in people. If there is no exercise every day, the lost bones will never come back over time. It will be over at that time. It will be very difficult for people to walk when they return to the ground, and in severe cases it will even be paralyzed.

Therefore, the international way to solve this problem is to let astronauts tie things like belts and perform physical exercises in space for at least 2 hours a day, so as to maintain the bones inside the bones and move normally when they return to the ground.

Qingquan Technology is naturally equipped with sports equipment for employees, but the effect of this transportation equipment is far less than that of Yuanli practice, so everyone is forced to undergo 2 hours of cultivation. This is the care of their own bodies, so naturally no one will object, not to mention that Yuanli practice makes people feel energetic and full of state.

After practicing Yuanli, Li Jun came out to the control center again to check and inquire about the various situations of getting off the spacecraft. Only after Li Jun had no questions, he went to have a meal with confidence.

If there is anything more painful in space than loneliness, then it must be a meal. The first thing that all foods pay attention to is balanced nutrition and easy to store for a long time. The taste is not what they consider at all.

At this time, Li Jun was in the agricultural area, holding a book "Cosmic Physics" in his left hand and a toothpaste-like thing in his right hand, constantly squeezing out some toothpaste-like things and then eating them!

As for the taste, it can only be said to be average. Unlike the Moon Base or Chang'an Space City, there is no supply here, and everything can be saved as much as possible. It is good to be able to do this in terms of food.

A toothpaste-like food is the amount of Li Jun’s meal. Although the taste is average and the amount is not large, it contains a lot of nutrients, which is enough to ensure the body’s demand for all substances.

The crops in the agricultural area exude an unknown atmosphere, and staying here makes people feel extremely relieved. Many people like to come here to sleep quietly or read books!

Day after day, time slowly disappeared, the outline of the earth became smaller and smaller, and a fiery red disc became larger and clearer.

After more than ten days of sailing, the "Zheng He" scientific expedition ship finally arrived at its first stop, Mars!
Chapter completed!