【Earth】.

"Professor, the planetary mining project has been completed successfully."

The electronic synthesizing sound rang in the laboratory, interrupting Lu Yongchang's movement of writing and scratching.

"Is it done..." Lu Yongchang raised his head and glanced at the holographic clock on the wall, with a faint confusion in his eyes, "It's quite fast."

"Where is Kepler 452c? Has it been blown up?"

"Yes, there are only five planets left in the Kepler 452 star system." Zero responded quickly, and at the same time released the scene of Kepler 452c explosion on the holographic projection.

"How is the working state of the gravity compensation ship?" Lu Yongchang asked Zero while walking towards the porthole next to him.

As a member of the star system, Kepler 452c suddenly disappears, which will inevitably have a certain impact on the movement of other celestial bodies in the star system.

At that time, maybe Kepler 452b will encounter a lot of "trouble" in the place of human beings.

For the current human civilization, it is almost impossible to completely eliminate this influence.

But it is possible for human civilization to reduce this negative impact as much as possible.

Gravity compensation ships are built for this purpose.

With the help of several large gravitational field generators, it can generate gravitational fields with strength similar to Kepler 452c.

It only needs to replace Kepler 452c to continue running on its original planetary orbit, which can weaken or even eliminate the negative impact of most gravitational perturbations.

"It's operating in good condition." Zero's response came from behind, "No abnormal celestial body operation has been detected in the star system."

Lu Yongchang nodded slightly, supported his hands on the window ridge of the porthole, and turned his eyes to the original position where Kepler 452c was located.

In the dark universe, there are sporadic red and purple lights.

That is the light mixed with molten iron and high-energy lasers.

This is the final statement made by a planet that has existed for billions of years to the universe.

Just as Lu Yongchang stared at the flickering lights in a daze, the electronic synthesized sound rang again.

"Professor, Academician Wang Man sent a communication request, is it connected?"

Lu Yongchang came to his senses, glanced at the holographic projection behind him, nodded and responded: "Help me connect."

The next second, a large face full of wrinkles appeared in front of him.

Looking at this big face full of festiveness, Lu Yongchang's mouth raised slightly, and his mood improved a little unconsciously.

"It seems that Academician Wang is very happy."

"Yeah! Professor Lu, what are you saying?" Wang's smile became stronger and stronger, "It's a big harvest, Professor!"

"Kepler 452c directly fills the gap in the basic metal of the fleet. Not to mention the current ring residential station, it would be fine if you even have another giant structure project!"

Lu Yongchang looked at Wang Man with great interest and smiled brightly: "Are you serious about this?"

Hearing this, Wang Man felt a sudden slap in his heart.

Before the smile on his face disappeared, Lu Yongchang spoke, "It just so happened that I have a huge engineering project here."

"I will ask Academician Tang Hairong to prepare in two days."

"Cough...Professor..." Wang Man's face showed a slightly awkward smile and asked in a low voice, "Can I ask what type of giant structure project it is?"

"Of course." Lu Yongchang said lightly, "It's the thing we've made before."

"Planet Fortress, do you have an impression?"

"thump!"

Wang Man sat back on his seat.

Planetary Fortress!

It is no exaggeration to say that all the projects under construction in Renminbi are currently not as good as the resource consumption of that thing!

Isn't this his life?

At this moment, the smile on his face had completely disappeared.

"What's wrong with Academician Wang?" Lu Yongchang looked at Wang Man in front of him with a smile, and said in a teasing tone, "You were not like this just now."

Wang Man swallowed with difficulty, raised his hand and gently wiped the cold sweat from his forehead, and smiled bitterly: "Professor, I just said it casually, Professor, don't joke about me."

Lu Yongchang looked at Wang Man in the holographic projection with a smile.

After a moment of silence, he whispered: "Who said I was joking?"

"After the starship replacement project is completed, the construction mission of the planetary fortress will be put on the agenda."

"It can be seen from the last war with the Bosa civilization that although the resources of the planetary fortress are expensive, the effect it can play in interstellar war is definitely not comparable to that of one or several starships."

"In the past, due to technical problems, the planetary fortress was just a semi-finished product."

"This time I want to build a planetary fortress in the true sense."

"At least, it has to move!"

"Hiss!!!" Wang Man took a deep breath when he heard this.

He silently calculated an extremely rough account in his heart.

To achieve the goal that Professor Lu mentioned, no matter how you say it, you have to add a power system to the planet.

This will cause the planet to be hollowed out.

It is definitely not enough to just hollow out. No matter how you have to install various fixing and support devices, otherwise wouldn’t this planetary fortress become a hollow stone shell?

Then it will be a big joke if you touch it on the battlefield!

Plus the weapon system, the defense system...

After finishing the calculation, Wang looked at Lu Yongchang with a dead face: "Professor, we... we don't have that many resources!"

"If you don't have resources, just mine it on site!" Lu Yongchang looked at Wang Man in surprise, "You don't need such a useful resource mining method, can you put it in for viewing?"

"No, it's not this problem..." Wang Man's expression became more and more bitter, "In our star system, except Kepler 452b, there is only one rocky planet left!"

"According to the detection report, the mineral resources on this rocky planet are not abundant. If it really needs to be mined, it may be a loss-making transaction."

When Lu Yongchang heard this, he became more and more surprised.

"Who said it's in our star system?"

"Ah?" Wang Man was slightly stunned, with a look of confusion on his face.

"The curvature detector sent some time ago has been successfully transmitted back to the detection report." Lu Yongchang smiled and transferred a file to Wang Man opposite the camera. "According to the detection report, in the star system 6.71 light years away from us, he said.

, with three iron planets, two rock planets, and metal mineral resources are quite abundant."

"And, the probe found no traces of the survival of alien civilizations."

Wang Man suddenly realized.
Chapter completed!