On February 8, the Lunar Forward Base began to get busy.

The headquarters of Xinghuo Technology Group has issued an order to excavate the crater.

The main purpose is to search for fossils of extraterrestrial life and a special substance in the basement of the crater.

Peng Feng was delighted and began to deploy manpower to prepare for the excavation project.

Because of his meritorious work in collecting lunar rock samples, he has been appointed as the person in charge of the excavation of the crater.

If he succeeds in finding a fossil of extraterrestrial life or a special substance this time, he will be one of the management of the Lunar Forward Base.

Peng Feng patted Wang Zhihua on the shoulder and said with a smile: "I'll just say that it's the right choice for you to stay, it's better for you to follow me for a promotion and a salary increase than to go back to Earth and don't know what kind of job to do."

How is the equipment ready now? We're about to set off, and the logistics can't be guaranteed. ”

Wang Zhihua's face no longer had the previous apprehensions, he was now full of enthusiasm, and immediately replied: "Director Peng, we are fully prepared to ensure that the excavation of the Jiapeng-3 crater project is normal.

We have 2,400 intelligent robots, we have enough particle batteries, and we can deploy resources through the space shuttle at any time.

Where this gravitational wave carrier network can't cover, we can only use particle batteries as an energy source.

Twelve special equipment shuttles have been transported from Earth to the lunar advance base, and engineers have completed the commissioning of the equipment.

A quantum server has been programmed on Earth, and it has been transported to the lunar advance base.

Quantum servers can communicate with intelligent robots and other devices through neutrino communication satellites on the moon. ”

When Peng Feng inquired, he also sorted out the procedures for developing the Jiawu crater through his quantum bracelet.

Seeing that everything was ready, he gave the order: "We are heading in the direction of the crater."

The square of the lunar advance base is lined with large transport shuttles.

Peng Feng led a team of 136 experts and more than 2,400 intelligent robots to board the space shuttle.

The space shuttle carried people, intelligent robots and equipment in batches and flew towards the Kai-3 crater on the far side of the moon.

After a journey of several hours, they arrived at the Kavalesan crater.

Engineers began to set up detection equipment, waiting for the arrival of intelligent robots, and making preliminary preparations.

After looking at the data of the equipment, the engineer reported to Peng Feng: "Director Peng, according to the exploration data, it is speculated that more than 17 kilometers below the ground of the Jiapeng-3 crater are normal lunar rock formations.

We need to use intelligent robots to dig a vertical deep pit directly in an area of 500 square meters, which is the easiest step. ”

Peng Feng already knew the details of the entire project plan and some of the plans, and he also put forward some suggestions based on his own experience.

This is the best solution until there is no accident.

Peng Feng instructed: "Start acting now, prepare for the reinforcement of the pit wall, the moon rock layer is dense in some places and sparse in other places, and it may collapse due to pressure."

Once everything was ready, the robots began to excavate the crater, which required them to dig 17 kilometers deep, which is an extremely large project.

In the blink of an eye, more than a month has passed, March 16, 2028.

Peng Feng and they have already excavated 18.7 kilometers, and there were no accidents that led to the suspension of the project except for some minor accidents in the whole process.

Engineers are still insisting, but 876 intelligent robots have been scrapped, with an average of 128 charges per intelligent robot.

Peng Feng said excitedly: "There are 200 meters left, and we will dig up the place where I collected the specimens, and we have to concentrate now."

He is also a little apprehensive now, originally the engineer has probed and given a safe depth of 17 kilometers, but now he has dug down 1.7 kilometers, and still has not seen the fossils of extraterrestrial life and special materials.

When Peng Feng was worried, an unexpected situation occurred at the excavation site.

When the intelligent robot uses the tool to dig down, it seems to have touched an extremely hard substance, and the tool in the hand of the intelligent robot trembles violently, but it cannot break the material in front of it.

You must know that the tools in the hands of intelligent robots can even break through the core high-density materials that make up a controllable nuclear fusion reactor.

Wang Zhihua observed the situation detected by the basic force field equipment, and he said excitedly: "Director Peng, there is good news and bad news."

"In the most concise words, everyone is not in the mood to joke with you right now." Peng Feng urged directly.

Wang Zhihua also knew that this was not a joke, and he immediately explained: "Director Peng, the good news is that we have discovered fossils of extraterrestrial life and special substances.

But the bad news is that it is encased in an extremely hard shell, with only a few gaps present.

We're probing the details of the underground, and in a few moments we'll have the younger brother's avatar detected by the basic force field device!

You're really lucky that when you were collecting a lunar rock specimen, you took the opportunity to go straight through the crevice and find a fossil of extraterrestrial life. ”

"It's all good news, even if this turtle shell is hard, we're going to break it." Peng Feng said confidently.

Peng Feng sent the data back to Earth in real time and asked geoscientists for technical support.

Intelligent robot tools are constantly tapping on these hard shells, and the sound waves they form are collected by the instruments, and through the analysis of quantum servers, the basic conditions of these hard shells can also be analyzed.

The intelligent robot tool strikes them to form a vibration, which lasts for more than 20 minutes, like striking a large bell with a hammer, and the vibration lasts for a long time before slowly disappearing.

Peng Feng looked at the data on the instrument, and immediately analyzed that it only had a thin shell, and there was a huge cavity inside.

This conclusion is very easy to draw and can be judged by someone with a little knowledge of physics.

When a person hits a hollow iron ball vigorously, it emits a buzzing and continuous vibration, while when a solid iron ball is struck, only a brief vibration is heard.

When a solid object is impacted, two waves can be measured, one is longitudinal and the other is a surface wave, while a hollow object can only detect surface waves.

A longitudinal wave is a penetrating wave that can penetrate an object and be conducted from one side of the surface through the center of the object to the other.

Surface waves, as their name suggests, can only be transmitted on very shallow surfaces.

None of the instruments in the field recorded longitudinal waves, all of them were surface waves.

Wang Zhihua quickly completed the basic force field detection by operating the equipment, which also confirmed the correctness of Peng Feng's analysis.

The image generated by the basic force field clearly shows the situation below.

They are made up of hollow bubbles, some of which have burst.

Peng Feng: They were able to collect fossils of extraterrestrial life and special materials through the cracks, that is, the drilling rig went deep into the ruptured space bubble.

Most of the hollow bubbles did not rupture, they were densely arranged together, and the size of the air bubbles was an elliptical sphere about 5 meters in diameter.

According to the data from the scene, Peng Feng and the engineers were discussing how to destroy these hollow bubbles.

The specific material of these hollow bubbles is not known at all, but according to the detection of the instrument, their hardness is very amazing, stronger than the most advanced high-density materials of Xinghuo Technology.

Peng Feng was frowning when the advice of scientists came back from the earth.

"Start the excavation through the side and bring the entire hollow bubble directly to the earth."

Peng Feng received this news and said in surprise: "Why didn't I expect that there is no means to destroy them now, and directly transport these things to the earth, won't it solve the problem."