In order to upgrade to a bachelor's degree: Master the photolithography machine technology at t

Afterwards, everyone walked around in a circle.

Liu Cong directly proposed to return the same way, because the purpose of their trip was not only to prove that Huaxia had really been here, but also to bring back gray metal.

"Mr. Zheng, we still have a very important purpose in coming to the moon this time."

"That's bringing back the gray metal we need."

"So we have to go back and start our mining now. We can explore other parts of the moon at any time in the future." Liu Cong said to Mr. Zheng.

Mr. Zheng nodded and said: "Academician Liu, everything is subject to your arrangements. Whatever you want, we will do."

"Yes, you are our leader. We will listen to you anytime this time. Just make the arrangements!" Academician Zhang also agreed behind him.

Everyone behind him was holding a large piece of gold and nodded in unison.

It is estimated that they don't know what Liu Cong just said. When they saw Academician Zhang nodding, they all nodded along with him.

"Okay, since everyone has no objections, let's go."

With that said, Liu Cong took the lead, followed by everyone, and the ten-man troop walked along the edge of the moon's basin.

The reason why you should walk along the edge is that you can better explore the moon's terrain and facilitate subsequent research.

Everyone walked very slowly and observed carefully.

The cameraman follows everyone. If he finds anything, he immediately takes it with his camera.

If there are important rock samples, Liu Cong will take them with him personally, because everyone has so much gold in their hands that they can no longer take it.

It took more than an hour for everyone to walk from where they started to the interstellar mining vehicle.

Ten people came to this big guy and got up one by one.

After everyone comes up, the hatch will automatically close.

The voice of artificial intelligence resounded throughout the main control room.

[Welcome everyone back. In order to give everyone a more comfortable experience, the temperature in the main control room is now 26 degrees Celsius, and the gravity is that of Blue Star. 】

[You have been out for two hours and twelve minutes. What should I do next? 】The artificial intelligence asked.

Liu Cong looked at the big screen in the main control room and said, "We will start our mining mission directly."

"The goal is to mine gray metals within the lunar rock formations."

After receiving the command, the artificial intelligence responded directly.

[Okay, Master, Jingjing will look for the gray metal of the moon rock layer for you]

Subsequently, a lot of data appeared on the big screen in the main control room, including the content elements of various metals.

Among them, what Liu Cong and the others saw most was elemental iron, which accounted for 60% of the moon rock soil. The others were aluminum metal commonly seen on Blue Star, and other common metals.

Liu Cong scanned the big screen, but saw no sign of gray metal.

[Master, no trace of gray metal was found where we landed. I want to go up now and continue to detect]

"Okay!" Liu Cong said.

Under Liu Cong's order, the interstellar mining vehicle took off directly into the sky, and then set off towards the goal he thought it was.

After everyone flew over the moon for about a minute, the interstellar mining vehicle detected the presence of gray metal.

[Master, there is a large amount of gray metal 20 meters above us. At present, I estimate that it is at least 10,000 tons.]

After Liu Cong heard such numbers, he couldn't help but sigh.

"so much!"

Hearing this, Mr. Zheng also walked inside to Liu Cong's side, and then looked at the display on the big screen. He was also shocked.

"In such a small area, there are 80% gray metal!" Mr. Zheng was also very incredible.

Because the range displayed on the big screen is only a few dozen square meters.

Displayed like this on the big screen, it means that there is gray metal under these dozens of square meters of land, and it may be under the entire lunar crust. This is very scary.

[Yes, it’s all under this area. I can only detect a few hundred meters below the ground so far. As for how much more there is, I’ll have to keep digging.]

[Okay, I’m about to land]

Not long after the artificial intelligence finished speaking, the interstellar mining vehicle began to descend downward.

Not long after, we arrived at the surface of the moon.

After the interstellar mining vehicle stopped, everyone observed the surrounding surface conditions.

They found that the surrounding area was very different from the basin they had just been to. It was surrounded by flat land, and there were no high-rise places or potholes at first glance.

At this time, the temperature instrument panel of the main control room of the interstellar mining vehicle showed a high temperature of 150 degrees. In such a high temperature environment, it would be a dead end for anyone to go down.

[Master, we have found a suitable terrain for mining for you, and the system will mine gray metal for you in one minute]

[A little reminder here, because the temperature outside is too high now, it is not suitable for everyone to go out and explore now. Please also ask the owner and everyone inside not to open the hatch]

As soon as the artificial intelligence finished speaking, the interstellar mining vehicle started to move.

The two wings of the entire interstellar mining vehicle stretched out the mining machines.

Then the two mining machines each mined the gray metal ore in the lunar rock and soil with a clear division of labor.

The huge movement made everyone in the main control room tremble with fear.

After all, this is the first time, everyone has too much uncertainty, and they don't know whether they can succeed this time.

Just within a few minutes of everyone waiting anxiously, artificial intelligence reminded everyone again.

[At present, the machine has arrived near the gray metal mine, and the machine will now start mining operations]

[At that time, the storage room behind the interstellar mining vehicle will be opened]

After the artificial intelligence finished speaking, the following situation could be clearly seen on the big screen in the main control room through the camera in front of the exploration probe.

Although nothing can be seen clearly, everyone can vaguely see the color of gray metal.

This made everyone feel excited after seeing it.

"Academician Liu, did you see it? This is gray metal!"

When Mr. Zheng saw this scene, he was very excited as if he had discovered a new world.

Liu Cong nodded and said, "I see, the color of this gray metal is similar to the sample I showed you last time, both tending to be silvery gray."

"Don't underestimate these gray metals. Ordinary drill bits really can't mine these."

"To mine these gray metals, my drill bits are all made of diamonds. (Diamonds)"

"I must have used nearly 10 million worth of diamonds for about one interstellar mining vehicle, otherwise it really wouldn't be able to cover the drill bit at all."

Everyone was very surprised when they heard this.

They had no idea that so much diamond was used before. After all, the probe above was not produced by their department, and they didn't pay attention during assembly.

Only Academician Zheng Lao Zhang and Liu Cong know the specific situation.