Scientists on Earth, while boarding a spacecraft in orbit.

At the base of the moon, there is also a small station. Dozens of people gathered here in front of the station.

Now the moon base, too, has some popularity.

All the people of the moon base have come to this station today.

Among them were the second and third groups, astronauts who came to the moon.

There are scientists specially assigned by the Chinese Academy of Sciences to come to the moon for scientific research and exploration.

There are also managers sent by the state who are responsible for coordinating the development of the lunar base.

They were bidding farewell to the three pioneers who had landed on the moon first.

Wang Yanfeng, Zhou Qijie, Zhu Zixuan.

Su Wan, the current manager of the base, comforted them: "We are reluctant to let you leave, it's just a space orbital spacecraft, and its time is very tight."

If you don't take the spaceship again, the start time on the surface of the Earth will also be affected. ”

Wang Yanfeng and Zhou Qijie looked at the moon base with red eyes.

They were the first to arrive at the lunar base, most of the factories and buildings of the lunar base.

After their arrival, they were built bit by bit.

After Zhu Zixuan heard Su Wan's voice, she suddenly cried bitterly and said in a choked voice: "I can't bear you, and I can't bear the moon base."

This is the base that has been built with our wisdom and our witness.

I have a deep affection for this place, and there are many things here that I can't let go of.

My piglets, their first generation was bred. ”

Su Wan continued to persuade them: "Actually, we are reluctant to let you go, when we came here.

It was you who patiently taught us the details of life on the moon base.

I know that this is you, who have endured a lot of hardships in a barren environment, and summed it up little by little.

But the moon base, it is a gravity device that provides a gravity environment.

But it is also impossible to completely imitate the earth's environment, and it still has a subtle impact on the human body.

Through detailed examination of your body, your biomagnetic field has begun to become disordered. ”

Wang Yanfeng clenched Su Wan's hand, his final farewell.

"You have to be vigilant, meteorites hit here from time to time, so that they can return to Earth intact. ”

Zhou Qijie finally reminded them: "Don't touch black radish, they are very toxic."

Even if we wear spacesuits, the radioactivity in them will also be contaminated on the spacesuits, which is difficult to clean. ”

Zhu Zixuan said her final goodbye, and she told everyone.

"If someone is injured, or gets sick on the moon. Medical nanobots can't handle it.

It is necessary to use low-temperature freezing technology to directly freeze the human body and transport it back to the moon for processing.

It's not very mature now, and there is a certain danger.

But in doing so, it will increase your chances of survival. We don't know when we'll be able to get a doctor. ”

After they finished speaking, they boarded the spacecraft that returned to the moon.

When the time reached 9:57, the spacecraft in orbit immediately entered the launch state.

The gravitational slingshot begins to charge and is ready to activate the gravitational orbit.

From the Moon to the Earth, a total of four gravitational slingshots are deployed.

Number 1 is on Earth, number 2 orbits Earth.

The 3rd is at the point of gravitational equilibrium between the Earth and the Moon.

No. 4 is the lunar base.

These gravitational slingshots are connected together. A dynamic system of gravitational orbits is formed.

Spacecraft in orbit from the Earth and the Moon.

They differed in speed, but in the same amount of time, arriving at the location of the No. 3 gravitational slingshot.

The point of gravitational equilibrium between the Earth and the Moon, it is a special place.

This is where the spacecraft can brake and stay here for a while. It is also the place where the spacecraft orbital, the orbit change.

Now they are connected to one-way gravitational orbits.

Here they swap tracks and rush towards their respective goals.

This requires that the timing must be very precise.

In the event of an error, in order to prevent the spacecraft from colliding.

There must be a spaceship, out of gravitational orbit.

At the moment of detachment, the gravitational force is unstable. It can cause great damage to the ship. will damage the entire ship's power system.

If there is such an emergency, a search and rescue team can only be dispatched. Look for it in space and drag it back.

At present, the computing speed of quantum computers can only ensure the safe and stable operation of two space orbital spacecraft.

Zhang Zhi saw that the spaceship had been started, and he sat next to him alone.

Through the quantum mobile phone, he talked to Li Lingqiu, who was in the hospital.

Yu Zhiyuan was coping with the reporters who came to interview.

Zhang Zhi really wanted to leave here and go back to the hospital to take care of Li Lingqiu.

But he had already agreed and came to greet the returning hero.

He easily made a promise, but what he did must be fulfilled.

Especially Li Lingqiu's current state is very stable, and it doesn't take him long, just waiting here.

The media continued to report the news of the operation of the spacecraft in orbit.

In particular, the three astronauts who were the first to land on the moon and stayed there for a long time in China are about to return to Earth.

For such heroes who have made a significant contribution to civilization, numerous media outlets are waiting for their return.

Time passed quickly, and the moon's spacecraft orbited straight towards Site 3.

Earth's spacecraft orbits, however, have to pass through stations that revolve around the Earth.

Because the Moon is now on the other side of the Earth, it is impossible for a spacecraft to penetrate the Earth.

It will be a bit more complicated to start, flying to Site-2 and then accelerating.

The process is a bit complicated, but under the control of a quantum computer, it works perfectly.

Now there is a sound in the site, reported by the console.

"The two space-orbiting spacecraft have safely completed the rendezvous at Site 3. ”

When Zhang Zhi heard this voice, he knew that the most difficult process had been completed.

The rest of the road is all smooth and there is no bumpy road.

Sure enough, after waiting for a long time, I heard the report.

The space-orbiting spacecraft, which has come outside the Earth's atmosphere, is preparing to land.

Inside the spaceship, Zhu Zixuan asked the two colleagues, "As soon as we heard the notice, we will arrive at Earth immediately."

I was reluctant to leave them, but when I came to Earth, I missed my parents a little. ”

Wang Yanfeng nodded and said: "This is human nature, and I also feel this way, both reluctant to the moon and nostalgic for the earth." ”

Zhou Qijie looked at the two of them and said lightly: "The two of you have too complicated feelings, how can you have so much sentimentality."

I now admire the country's scientific and technological development, and the spacecraft we took when we went to the moon was completely incomparable to the current one. ”

Hearing his words, both of them felt the same way.

They felt a slight jolt of the spacecraft, and it was supposed to be entering the atmosphere.

A few minutes later, the ship came to a solid ground in Station 1.

When the hatch of the spacecraft opened, the astronauts stepped out of it.

Immediately there was warm applause at the station, and reporters were also taking pictures amid cheers.

He didn't think to go over to interview the astronauts and was stopped by the security guards here.

Zhang Zhi and Yu Zhiyuan immediately walked towards them and shook hands with them warmly.

After a brief exchange, the doctors who had already prepared immediately gathered around.

They were carried on stretchers and prepared to go to the medical center for a detailed examination.

Zhang Zhi saw that his task had been completed, he and Yu Zhiyuan had a few words, and then walked towards the hospital.