Like other large aircraft, Zheng He still flies around the earth a few times first, relying on the earth's gravity to obtain a faster initial velocity, which can greatly reduce the fuel consumed for acceleration.

The initial velocity of 20 kilometers per second, according to Einstein's mass-energy conversion formula, coupled with the huge mass of "Zheng He", can derive an astronomical huge energy demand, using the gravitational pull of massive celestial bodies to fly, which is a course that astronautics must learn.

"Zheng He" relied on the earth to obtain a good initial velocity, identified the direction of Mars, the powerful nuclear fusion engine began to start, relying on a temperature of more than 100 million degrees, directly gasification and ionization of the air, producing an unparalleled propulsion.

Even if the mass of the "Zheng He" is very large, but under such a strong power, the speed has also accelerated rapidly, and it did not take long to reach a speed of 100 kilometers per second, and the speed is constantly increasing, after all, this voyage is too far, it is the farthest voyage in human history!

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

Obviously, the distance between Mars and the Earth at this time is not the closest distance, the distance between Mars and the Earth at this time is about 100 million kilometers, such a long distance, even at a speed of 100 kilometers per second, it will fly for nearly 300 hours, more than 12 days, if you count the time spent on acceleration and deceleration, it will be longer!

An hour later, "Zheng He" and the moon hurriedly passed by, did not stop, deceleration consumes more energy than acceleration, acceleration can rely on the earth's gravity, this deceleration can not be helped.

"Report to the captain, everything is working fine!"

Li Jun nodded, and then personally checked all the data, the communication is normal, the quantum technology is still very good, the power system has been turned off, the speed has been as high as more than 100 kilometers per second, and the energy consumed to accelerate will increase geometrically, which is not cost-effective, it is better to rely on inertia to fly down.

After checking the system one by one, the state is very perfect, and it is not a scientific research ship that has spent a lot of money and the painstaking efforts of many scientists in the research institute, and this "Zheng He" can be said to be the pinnacle of human spacecraft at present, and it is the crystallization of current science and technology.

"Let's take turns resting! Always keep an eye out for meteorites and meteors in the void! Notify me as soon as there is any situation! ”

The long journey is very boring, there is nothing in the void, except for the occasional inconspicuous meteorite, it is really nothing, and the bright earth in the distance with its little friends is still under the gravity of the huge fireball in the distance, moving according to the trajectory of billions of years, but their silhouette is getting smaller and smaller.

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

According to the usual practice, Li Jun first had a video call with his wife, and the long and boring journey is a kind of torment for people's hearts, and only the contact with his family can soothe it.

After more than an hour of calling, Li Jun couldn't help but smile, Dong Qian lived very well under the care of both parents, his son was very obedient, and he always remembered that he had to help his father take care of his mother and the baby, and he had been staying by his mother's side, which was very different from his usual naughty personality, which made Li Jun impressed.

Turning off the communicator, Li Jun sat cross-legged and began to cultivate Yuan Li, which is also a good way to polish time, when immersed in Yuan Force cultivation, he can't feel the loss of time at all.

For the cultivation of Yuan Li, this is something that the entire company attaches great importance to, especially on the "Zheng He", all people are required to practice for more than 2 hours a day.

Because "Zheng He" has to drive in the void for a long time, and the influence of gravity for a long time will lead to the loss of human bones, if you do not exercise every day, then after a long time, the lost bones will never come back, and it will be over at that time, and it will be very difficult for people to return to the ground and even walk, and even paralyzed.

Therefore, the international solution to this kind of problem is to let astronauts do at least 2 hours of physical exercise in space with belts and other things in space, so as to maintain the bone quality in the bones and return to the ground before they can move normally.

For the attention of employees, Qingquan Technology is naturally equipped with sports equipment, but the effect of this transportation equipment is far less than that of Yuanli cultivation, so all people are required to practice for 2 hours, which is the love of their own bodies, naturally no one will object, not to mention that the cultivation of Yuanli makes people feel a hundred times more energetic and full of state.

After cultivating Yuan Li, Li Jun came out again to the control center to check and inquire about the situation of the spaceship, and there were no problems, so Li Jun went to eat with confidence.

If there is anything more painful in space than loneliness, then it must be a meal, all foods are nutritionally balanced and easy to store for a long time, and taste is not at all what they consider.

At this time, Li Jun was here in the agricultural area, holding a book "Physics of the Universe" 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 that it is average, unlike the moon base or Chang'an Space City, there are no supplies here, everything can be saved, and it is good to be able to do it now in terms of food.

A piece of toothpaste-like food is the amount of Li Jun's meal, although the taste is average and the amount is not large, but the nutrients contained in it are not a lot at all, which is enough to ensure the body's needs for all substances.

The crops in the agricultural area exude an unknown atmosphere, and it is very reassuring to stay here, and many people like to sleep quietly or read a book!

Day after day, time slowly slips away, the outline of the earth becomes smaller and smaller, and a fiery red disk grows larger and clearer.

After more than ten days of sailing, the "Zheng He" scientific research ship is finally about to arrive at its first stop, Mars!

PS: Have a great weekend everyone~~ (To be continued.) )