"Report to the command center, I have completed all the thruster cable connection work."

"Apply for the next step, Hall Thruster Functional Test Procedure."

Xu Ying was in the communicator and said calmly.

The double-ring nested Hall thruster used on the starport.

Radon gas is used as a propellant.

Radon gas is a noble radioactive gas derived from the decay of radium, which is highly radioactive.

Therefore, throughout the test process, Xu Ying must be very energetic and maintain a high degree of concentration.

"The command center, which has received an application for functional testing, is preparing to start the propulsion system control host."

In the intercom, the latest news from the ground came.

What Xu Ying was able to do at this time was to watch the test program run.

If there is a problem with its operation, it will be interrupted in time.

Then let the control host self-test.

If there is a problem, send it to the ground, and he will follow the operation.

"The control host is start-up, and the Hall thrusters are being started one by one."

The control console, the size of a small cargo box, flashes a blue glow of normal operation.

Surges of electricity and radiant fluorescent radon gas are fed into Hall 1 thrusters.

A pale blue glow began to slowly light up between the two rings of the Hall thruster.

The light of the ions slowly rises.

However, from a distance of several hundred meters, Xu Ying couldn't see clearly with the naked eye.

The height of the ionic light is not even ten centimeters.

The Hall thrusters, compared to the thrusters of the Tiangong spacecraft, have much less thrust.

However, it is still able to slowly propel the starport's trajectory in space.

"The No. 1 Hall thruster has reached the maximum power of 50KW, and the relative acceleration of the star port has reached the maximum."

"The test results were good and allowed to pass the performance test."

The test results came out of Xu Ying's mouth.

No one is better suited to look at the test results of the Hall Thruster than him.

Others can only see the basic data.

Xu Ying can not only see the data, but also see the actual operation status with the naked eye.

The testing of the Hall thruster is compared to the installation work.

It's a little more troublesome.

Because in addition to testing the operation of a single Hall thruster.

It is also necessary to test the coordination between multiple Hall thrusters.

After each test is completed, the Tiangong-1 spacecraft will be used to reset the orbit of the starport.

The whole test lasted a total of four days.

Only then did the situation of the entire propulsion system be thoroughly understood.

In this process, Xu Ying's judgment also played a great role.

For example, when working on multiple Hall thrusters in Starport.

Because of the angle, there is a spin problem.

If Xu Ying hadn't activated the thrusters of the Tiangong spacecraft in time, he would have stopped the spin.

And cut off the operation of the Hall thruster in time.

It is likely that the starport will quickly fall into the earth's orbit under the high-speed spin.

"Comrade Xu Ying, your tasks have been completed!"

"You can return to the Tiangong space station, take a short rest, and wait for the next manned spacecraft to return to Earth."

The slightly excited voices of the ground personnel were heard from the communicator.

Xu Ying was quite calm, "Xu Ying understands that the separation process is about to begin. ”

In the past few days, Tiangong No. 1 and Tiangong No. 2 have been existing as a combination.

Start the separation procedure.

Inside the Tiangong No. 1 cabin, the membrane began to penetrate with molecules to transmit oxygen to the inside of Tiangong No. 2.

The inert gas is then released to protect the equipment inside the chamber.

It will continue to attach itself to the starport.

It's like an ant lying on a starport.

Xu Ying looked at Xinggang, which was getting farther and farther away from him, and could gradually be seen normally.

There are still waves in my heart.

In the first half of his life, he participated in a number of special projects.

But there has never been a project that excites him like Starport.

"Don't be, I don't know when the next meeting will be."

Xu Ying looked at the smaller and smaller star port outside the porthole and muttered.

But then he looked at the bigger and bigger earth with even more joy.

The mood is as excited as when I go home for the New Year.

A distance of more than 30,000 kilometers, even at high speed in space.

Xu Ying still flew for nearly twenty hours.

"The automatic docking procedure has been started, and the automatic docking work will start soon."

A mechanical female voice rang out in the cabin.

Xu Ying looked at the Tiangong space station that was close at hand.

It feels like Robinson, who has been wandering on an isolated island for several years, has returned to human society.

Staying in geosynchronous orbit for nearly ten days is not something that normal people can endure.

In space, because there is no sound medium.

Xu Ying could only hear the sound inside the cabin.

He could hear the slight creak of the ship's metal stress release.

If it weren't for the fact that the various voices of the ground command center could be heard from time to time.

And numb their will with heavy work.

Xu Ying is likely to go crazy directly.

"Welcome back to the Tiangong Space Station!"

"Comrade Xu Ying!"

As soon as Xu Ying floated into the interior of the Tiangong space station, he ushered in the members of the space station who warmly welcomed him.

If it weren't for the space station, there would be no conditions for firing artillery.

They may just put a couple of salute barrels.

Wu Yuan, the commander of the fifth batch of crews, warmly hugged Xu Ying.

"Welcome back!"

"I'm tired of being in the synchronous orbit, we've got something good."

Nie Haisheng on the side, holding a glass bowl.

Bursts of heat rose from inside.

"Get on the dumplings and get off the noodles, we have limited conditions here, so we will make you a simple scallion oil mixed noodles."

It is not easy for the space station to eat food.

Noodle soup is largely left out of the menu.

If the soup water is spilled in the cabin, it is difficult to clean it.

There are only a few types of pasta that can be eaten inside the space station.

"Thank you."

Xu Ying looked at the cabin, with a smile on her face, looking forward to her people.

I felt a warmth flow through my heart.

He took a large bowl of mixed noodles from Nie Haisheng's hand.

Everyone else is looking at themselves, as if to say with their eyes.

"Hurry up and eat."

Xu Ying stirred up a small ball of noodles.

The light brown noodles have a rich aroma of scallion oil.

The noodles are smooth and delicious.

Xu Ying, who has been gnawing on various rations for nearly ten days at the Xinggang station.

It was a pleasure to eat and a pleasure to eat.

In less than three minutes, a large bowl of mixed noodles was eaten by Xu Ying.

"I'm sorry, I'm a little hungry."

After eating, Xu Ying looked at the people present and said with some embarrassment.

"Have you eaten?"

"It's past our meal time, we've already eaten."

After Xu Ying finished eating, Wu Yuan began to introduce him to his next itinerary.

"You'll go back on the same return ship as us."

"You can fully arrange the few days of waiting for the spaceship."

"It doesn't matter if it's a break or what you want to do."

The crew of the space station also knew that Xu Ying had been in the past few days.

Every day is a high-intensity work.

So they all nodded approvingly.

"Get back to the space station and get some rest, your mission is complete."

Nie Haisheng also patted him on the shoulder and said.

The next few days.

In addition to daily rest, Xu Ying is exercising.

Although his time in space was very short, it only added up to half a month.

Muscles and bones, not weakened enough to sit on a stretcher.

But a certain level of fitness can still be achieved after returning to the ground.

Faster recovery of good health.

Xu Ying uses an elastic band to perform strength training on her arms and legs.

"We were lucky that the weather was good on our return recently, and we barely had to wait too long to be back on the ground."

Wu Yuan brought good news to Xu Ying.

Slowly stopping her stretched arm, Xu Ying exhaled.

"When?"

"Tomorrow night."

Wu Yuan said with a smile:

"It's a pity that we're going to be in a different place when we get back to the ground, otherwise we would still be able to play together."

Wu Yuan: They spent most of the year in the space station.

After returning to the ground, it was a little reluctant to even stand up.

Either walk with mechanical assistance or with the help of others.

It will take months for them to be able to return to peak fitness.

Xu Ying didn't spend a lot of time in space.

After returning to the ground, he was able to return to research and teaching.

As the world's first space engineer with real-world experience.

Xu Ying's experience will be passed on to other engineers on the ground.

"I can go see you then."

Xu Ying said after smiling.

Wu Yuan: They need to stay at the Institute of Aerospace Medicine for a while.

Xu Ying only needs a simple check, and she can go directly back to the astronaut training base.

The next night, a return ship cut through the night.

Landing on the Agumulang grassland.

"How's it going, can you still hold it?"

Returning to the cabin, Wu Yuan looked at Xu Ying and said.

"It's okay, I can still walk."

After returning to the ground.

Among the current few people, Xu Ying is actually the best in physical fitness.

The heavy re-entry hatch was opened.

Outside the door, there was a crowd of people who warmly welcomed them back to Earth.

The army, which is responsible for maintaining order, the medical team that is responsible for the bodies of astronauts.

The people who gave them flowers, and the media who wanted to take pictures of the return.

The large flow of people has brought a rare liveliness to the vast and cool grassland.

"How about it, do you want me to help you carry you out?"

Xu Ying said with a smile.

"That's not necessary, I still have the strength to go out."

Wu Yuan said without lagging.

Then the first one walked out of the cabin.

He was then carried on a stretcher by the medical team.

After Xu Ying walked out of the hatch, he felt that he was in good condition, and he refused the stretcher of the medical team.

"Old Xu, welcome back to Earth."

It was Xue Feng who presented flowers to Xu Ying.

An old friend of his.

"Haha, Lao Xue, you lost to me this time."

Xu Ying said with a laugh.

As the first space engineer.

As long as the future is still developing, human beings are still developing.

Then his name will be firmly recorded in the history books.

"You're kind of famous this time."

Xue Feng gave a thumbs up and said.

"In our old unit, people now call every day and want to have a relationship with you."

Now is not the time to speak.

The two chatted a little.

The main time is still reserved for Xu Ying and them.

Their group of astronauts who returned to the ground are the protagonists today.

News of the return of the fifth batch of astronauts and Xu Ying to Earth.

While they were still passing through the atmosphere, it had spread all over the Internet.

Related entries, hanging at the top of major search rankings.

"This session of netizens can really take any picture."

Geng Bo swiped Weibo and said with emotion.

"Someone actually crouched into the image of the re-entry capsule passing through the atmosphere."

For Geng Bo, such an image is not special.

Because the monitoring stations in various places have a very large number of lidars.

Able to track and capture images of the return capsule at all times.

Even when the return capsule is in the presence of a black obstacle.

Thermal satellites are also able to capture the flight trajectory of the return capsule.

But ordinary people do not have such conditions.

Able to crouch down to the trajectory of the return capsule and take a clear photo.

It really takes a lot of luck.

"It's quite clear, it's not like an ordinary person."

Hearing this, Zhang Xingyang glanced at Geng Bo's mobile phone.

The definition of the photo is very high, but the distance is relatively far, and the details of the return capsule cannot be captured.

"Maybe it's a space enthusiast."

Geng Bo guessed.

The development of the domestic aerospace industry has also led to the emergence of many aerospace enthusiasts.

They are keen to film various rocket launches and the returner returns to the ground.

"Not really, it's not quite the right place."

Zhang Xingyang carefully looked at the photo Geng Bo saw.

Found something a little out of the ordinary.

That's where the photo was taken.

Actually, for the safety of the masses around the perimeter of the return capsule.

A large area of land, when the re-entry capsule returns to the surface.

will be classified as a no-go zone.

Prevent unnecessary casualties caused by the return capsule during landing.

"The location where this photo was taken, very close to the landing site."

"Look at that puddle, it's less than forty kilometers from where this landing took place."

Zhang Xingyang pointed to an inconspicuous black dot in the corner of the photo and said.

Geng Bo's memory was not good enough to memorize all the terrain back to the field.

But what Zhang Xingyang said, there should be no problem.

So I went into the database and searched for the satellite map of the return field.

It was found that there was indeed a puddle more than 30 kilometers away from the landing point of the return capsule.

I carefully compared the terrain back and forth.

Geng Bo could be sure that the man had indeed broken into the restricted area.

"Call the people of the state security and ask them to check who took this photo."

"By the way, let the person in charge of the perimeter security work search this place to see if you can catch the other party."

After determining that there is a problem with the person who took this photo.

Zhang Xingyang said to the staff around him.

Regardless of whether this is an aerospace enthusiast who has no intention of breaking into the blockade exclusion zone.

Or a spy who wants to take some classified photos.

This matter will not end so simply.

The person in charge of the security work on the return site, after receiving a call from his superiors, was directly scolded for being bloody.

(End of chapter)