I thought it was the luck in front of my house that was trampled on by someone. As a result, I found out that the watermelon peel left by someone else's house was thrown to my door. Nie Yun's mood was complicated ...

Moon: "..." (You are the melon!)

But these new discoveries are not the biggest gains.

"Since there are so many sub-bases, according to common sense, there should also be a main base, which is responsible for unified scheduling and transportation of the mined energy crystals, so there should be a transportation channel directly through the moon surface near this main base!

So ... the location of this main base ... "Nie Yun's eyes began to patrol the unfinished model of the Moon Core.

The complex mine tunnels are like branching and winding branches. Some of the tunnels are thinner and stop shortly. Some tunnels are thicker, as if the main road is connected to many small tunnels.

Nie Yun's eyes slowly climbed along the thickest main roads. As his mind turned, a large number of scattered "space spies" began to gather on several main roads, and then locusts swept and scanned.

With the change of this search method, the modeling speed of several main roads on the holographic projection is increased at a speed visible to the naked eye ...

Half an hour later, all the main roads lit up on the holographic model gradually spread in one direction, and finally converge on one point!

A large number of searched "space spies" flooded into this meeting point, and then fell to the ground one after another.

In the light of silver light, Nie Yun's face appeared, and the avatar came again!

"Wow! This is really magnificent!" Nie Yun looked at the scene in front of her and couldn't help but exclaim.

This is a huge space with a semicircular dome, with a height of hundreds of kilometers at the highest, looking upwards like a small world in a sky-round place.

In the middle of this small world, there is the remains of a huge underground base.

The construction style is exactly the same as the previous sub-base, but the scale is dozens of times more than the sub-base, and there are several new buildings with strange shapes in the base.

The various pipelines in the base are densely packed, and various functional buildings are closely arranged in an orderly manner. In addition, what is very eye-catching is the ring-shaped hemispherical cavity around the base.

Nie Yun counted a total of twenty. After scanning, he found that the size of these hemispherical holes is exactly the same as the size of the hole in the center of the mining sub-base!

"It seems ... this should be the kind of parking space for mining trucks! But the number is less than the total number of mining bases, so spherical mining trucks should take turns to turn over ore, or maintenance?"

He turned his head to look at a very eye-catching huge spherical steel skeleton inside the base, with various strange-shaped robotic arms and construction tools. Nie Yun compared the sizes, and it seemed to be slightly larger than the spherical mining vehicle at the base.

"This should be a manufacturing and maintenance plant for spherical mining vehicles?" Nie Yun guessed with a chin.

He looked around the base and saw that he didn't find any defensive weapons. He slowly approached until he entered the base and there was no attack reaction. Then he began to visit the alien mining base carefully.

The basic construction unit here is also a kind of small ant robot, which also has a robot manufacturing plant, but the key information components of the growth line are also missing.

Then Nie Yun found their energy supply building along the energy pipeline ...

"Um ... should this be the energy hub?" Nie Yun looked at a hexagonal slot on the central high platform of this building, but what do they use for energy? Not like nuclear energy ...

He suddenly moved in his heart, the energy crystal here is so rich, the other party can not use other fuels, right?

So Nie Yun went out and came back here after nearly half an hour. There was a hexagonal red energy crystal in his hand!

That's right, Nie Yun just went out ... "Eating soil"!

Nie Yun inserted the energy crystal in his hand into the energy center.

"Weng!" The whole base seemed to shake a bit, and then the base seemed to be alive, and the mechanical equipment inside each functional building began to receive energy supply, and various indicator lights were on.

However, the indicator lights of some buildings have just turned on and then turned off again. Obviously it is in disrepair and the equipment has been aging and damaged and cannot be used.

But at the moment, Nie Yun has been completely attracted by the eight vertical lasers erected upward from the center of the base.

These eight lasers are like forming a sky-high tower, shining directly on the central dome, and there ... Nie Yun saw a deep black hole ...

...

Inside the earth base.

"The best place to observe the earth?" Yu Lao looked at the code in front of him in surprise.

"Yes, this is your next research topic. The astronomical data and calculation support you need can be supplied in unlimited quantities!"

"Uh, if the boss is looking for the best location to observe the earth, what are the three conditions?" Yu Lao wondered.

The codename, or Nie Yun, was thrown to the old subject: "Find the best location to observe the earth under the following three conditions!"

Condition 1: The observer used has detection equipment far superior to earth technology, allowing bold assumptions.

Condition 2: The observation location can collect earth information in great detail.

Condition 3: After being disguised, it is very concealed and difficult to detect.

Yu Laokan is inexplicable, this is not like looking for the best observation position, but like looking for that detector, right?

"Insufficient authority! Unable to answer!"

Yu Lao: "..."

Looking at this inexplicable condition, Yu Lao thought of the original intention of the SoS organization, and there was a guess in his heart. This guess made his heart beat faster ...

Could it be ... looking for alien probes?

Thinking of this possibility, the blood in Yu's body began to boil involuntarily.

"First of all, I need a model of the celestial bodies of the solar system!" Yu Lao tentatively pondered the brain.

"Brush!" The lights in the whole room suddenly dimmed, and then lit the starlight in front of the old man, just like being in the universe.

Then the major planets of the solar system emerged one by one, and even some of the comets and some asteroids that have been detected were also listed.

"Hiss!" Yu Lao pours a sigh of relief.

We were originally asking for a computer 3D model. You even gave me a realistic 3Dmax holographic experience. This support is so touching that it is too touching!

Worthy of being the spooky captain of Black Technology!

"I also need the electromagnetic wave intensity attenuation curve, the Earth's atmospheric ionospheric signal reflection model, and the atmospheric light deflection effect model ..."

While talking, Yu Lao stared at the continuously popping up data streams and drawings, and then the whole person shivered in excitement.

This is definitely a paradise ... a paradise for researchers!