You promised to build cars, so why did you go into the military industry?

In the evening, amidst great anticipation, the Chang'e-3 lunar probe's variable-thrust engine was restarted, and the probe, which was orbiting the moon at a speed of 1.7 km/s, began a powered descent from a distance of 15 kilometers above the lunar surface.

When it was about 100 meters from the lunar surface, the Chang'e-3 lunar probe paused its descent and began to use its three-dimensional imaging sensor to perform precise obstacle detection on the landing area, attempting to select the safest landing site.

Soon, through autonomous computer selection, the Chang'e-3 lunar probe selected its target landing site.

With the engine shut down, the Chang'e-3 lunar probe descended under its own gravity.

Amidst the expectant gazes of the crowd, the landing legs firmly 'stood' on the lunar surface.

At approximately 21:11 that evening, the Chang'e-3 lunar probe successfully landed on the moon!

More than seven hours later, at 4:35 a.m. on December 15, the Yutu rover reached the lunar surface.

The wheel left two deep marks on the lunar surface.

Kong Lingcheng, who had stayed up all night watching the live stream, finally couldn't take it anymore. Stimulated by the continuous stream of good news, he quickly tidied up, crawled into his sleeping bag, and fell asleep almost immediately.

Time flies by in the blink of an eye.

Kong Lingcheng overcame his physical instincts by relying on his strong mental qualities and self-management skills.

In this cramped space, he became increasingly adept at managing his life.

"The water I'm drinking now is very clean, and it tastes much better than recycled water... well, maybe it's just psychological? After all, recycled water is made from urine and sweat," Kong Lingcheng complained in his daily report. "But the quantity is too small, and the water circulation is a bit slow."

"Did I have any leafy greens in my diet today? I feel a bit constipated."

"I applied to produce oxygen by electrolyzing water, but the instrument shows that the oxygen concentration is too low."

"I'm starting to doubt how these scavenging little creatures would survive in zero gravity."

"..."

At approximately 5:53 a.m. on December 26, Li Ran was woken up by a phone call while still fast asleep.

I forced myself to open my eyes. The caller ID showed "Chief Engineer Lü Chaoping".

Li Ran jolted awake.

"Feed? Chief Engineer Lü?"

"The Long March 6 rocket carrying the YF-100 missile will launch on schedule in one hour. Want to get up and watch the live broadcast?"

"rise!"

After hanging up the phone, Li Ran got dressed and went to the office.

I turned on the TV; the live broadcast had already started.

Turning the TV volume up to the maximum, the empty hallway was filled with the host's voice as Li Ran quickly went to the bathroom to wash up.

I made myself a cup of tea, sat on the sofa, and quietly watched the live stream.

Time passed slowly, and the sky outside the window began to brighten as the sun began to rise in the east.

At approximately 6:53 AM, the Long March 6 rocket carrying the YF-100 fighter jet ignited and took off on time.

At this moment, in the far easternmost part of China, the motherland welcomed the first ray of sunshine.

As night falls and dawn breaks, things naturally fall into place.

The Long March 6 rocket launched successfully in one go, perfectly deploying twenty satellites into orbits at different altitudes.

The moment the launch center director announced the success, Li Ran sent a congratulatory message he had prepared to Chief Designer Lü Chaoping.

Having drunk a lot of water, Li Ran staggered into the cafeteria, intending to grab a quick bite to fill his stomach.

"A bowl of pumpkin porridge and three braised pork buns, please."

Li Ran, who was carrying her tray and preparing to sit down anywhere, suddenly noticed a somewhat lonely figure in the corner of the cafeteria.

Wearing anti-static clothing, Zhou Rui was eating a steamed bun while typing something on his laptop in front of him.

"Cough... so early."

"I'm not asleep." Zhou Rui stuffed the now-cold bun into his mouth without looking up.

For a moment, Li Ran didn't know what to say. It didn't seem like the factory he ran was a sweatshop.

Eat quietly, without disturbing others. Before leaving, Li Ran gave the following instructions:

"Health is the foundation of everything; take care of your health."

"Um."

However, this day brought some minor setbacks for Kong Lingcheng, who was undergoing a survival test.

Watching live streams is a rare form of relaxation and stress relief for him.

After watching the entire live broadcast, he was so excited that he accidentally bumped his head while cheering and celebrating.

Logically speaking, Kong Lingcheng, who has undergone rigorous astronaut training, should not exhibit such emotional agitation.

A psychology PhD at the scene believed that living in a cramped environment for a long time had already caused some damage to Kong Lingcheng's mental health.

Therefore, he suggested terminating the experiment early and treating the wounds while providing psychological intervention.

However, after examining himself, Kong Lingcheng concluded that the wound was bleeding but not serious, so he stopped everyone from suggesting that the ventilator be opened for treatment.

At the same time, it is proposed to add one hour of remote psychological counseling each day.

Kong Lingcheng reported to his supervisor while bandaging his head:

"There are still 10 days left, and I believe my mental state is still within a controllable range."

Additionally, a chamfering process could be considered for the frame to prevent damage from impacts.

In an effort to calm him down, Zhao Feng had no choice but to unlock the food in the refrigerator ahead of time, hoping to soothe Kong Lingcheng's emotions with delicious food.

However, Kong Lingcheng, with his amazing willpower, refused Zhao Feng's suggestion and took the initiative to lock the ingredients back into the refrigerator.

On December 31, just before the New Year's Day holiday, some good news arrived.

Manager Yuan told Li Ran that the rocket launch site was completed and could be tested.

"So fast?" Li Ran was pleasantly surprised.

Judging from the progress, the rocket and the module should both be completed by mid-January.

It would be frustrating if the rocket were erected, the modules installed, but the launch tower was nowhere to be seen.

The group drove to the launch valley. The engineering vehicles had already left, leaving only some armed personnel dispatched by the military region to help clean up the environment.

"As per your requirements, it is only compatible with rockets under 5 meters in length."

In fact, many things are modular and can be adapted to each other.

Although we don't need manned launches, I still installed an escape slide and an underground rubber chamber.

The rubber-lined interior includes explosion-proof doors and spring-loaded mechanisms designed to withstand the impact of a rocket explosion and protect personnel inside from injury.

Manager Yuan explained, pointing to the flight control center, a row of bungalows, and a lookout tower built on a hilltop about six or seven kilometers away.

"On the left is the flight control center, in the middle is the observation tower, and on the right is the row of dormitories where the troops live."

There are many rooms inside. If you don't want to travel back and forth before the launch, you can stay here.

The connecting corridors ensure that travel is not affected by inclement weather.

He then pointed to a small red house at the bottom of the valley, a little distance from the launch tower.

"The propellant storage tanks are buried at the bottom of the valley. See that little red house? It's right under that house."

As for the spectator stands, we built them on several hilltops in the northwest direction, with a straight-line distance of about 7 kilometers.

Rubber shelters have also been installed under each stand for refuge purposes, but it will take another two weeks for everything under the stands to be completed.

Hearing Manager Yuan say this, Lin Yu felt a surge of pressure and muttered to himself, "I hope I never have to use it."

After a quick look around, on the way back to the base, Li Ran called Guo Shuyan and asked her to buy some rice, flour, cooking oil, and fresh vegetables, fruits, and meat as soon as possible.

"We must deliver a batch of supplies to the troops stationed at the rocket launch site before dinner tonight."

During the New Year's Day holiday, the United Industrial workers, who had been busy all year, finally got a three-day break.

To celebrate this moment, Kong Lingcheng was allowed to take out pre-prepared meat-filled packets from the refrigerator as a supplement.

On the first day of the new year, Kong Lingcheng finally got to eat the delicious food he had been longing for.

At 9:00 AM on January 8th, Biosphere 1 was successfully unsealed.

Kong Lingcheng refused the help offered by others and insisted on walking out on his own.

With this, the month-long independent survival test has officially come to an end!