Homo sapiens.

Galaxy for 15 years.

In the interstellar space 0.083 light-years away from the solar system.

It is dark here, and there is no other light source except for the distant starlight.

open.

deep.

silence.

It is the eternal theme of this starry sky.

At this moment, an irregular asteroid with a radius of about 288 kilometers slowly drifted past.

The escape velocity of the star is only 13.5 kilometers per second, and the direction of movement is not the solar system, but away from the solar system.

In fact, the trajectories of the stars in the starry sky are unpredictable.

Suddenly, a Pylon spacecraft flying over from the Cooper Belt of the solar system slowly approached the asteroid until the speed of the two sides remained the same and entered the companion flight mode.

The Civilization Spark storage compartment of the Tinder spacecraft opened, and then a carrier rocket carrying the Civilization Tinder was ignited and launched, flying towards the asteroid 12 kilometers away.

Less than 3 minutes.

The launch vehicle carrying the Civilization Spark successfully landed on the surface of the asteroid.

Immediately, the transport capsule of the launch vehicle bounced open, revealing the spark of civilization inside, an improved version of the spark of civilization, added the life metal of Homo sapiens, and used the nuclear fusion power system of the spark spacecraft to transmit power over long distances.

Soon, a large number of living metal particles spread to the surface of the asteroid like a tide.

The dark surface of an asteroid welcomes its first visitor in billions of years.

The Zhina auxiliary system of the Pinder spacecraft quickly plans the development plan by scanning the composition of the asteroid.

A dozen or so synchrobots are activated.

Immediately, one of the cabinets storing the synchronous robot popped open automatically.

Zizi... A white mist came out of the cabinet, and the frozen synchronous robot quickly thawed, and the human face on its head slowly squirmed for a few minutes, and finally the robot opened its eyes:

"Are you at your destination?"

Zhang Yu's synchronous robot floated out of the cabinet.

At this time, other team members also came online one after another.

"team leader!"

Zhang Yu looked at the others: "According to the task arrangement, let's start working!"

"Say it!"

In the control room of the spacecraft, Zhang Yu carefully checked the specific situation of the asteroid.

At the same time, a small transport spacecraft carrying 6 synchronous robots flew out of the Tinder spacecraft and landed on the asteroid.

The asteroid is called "Stonefish".

After reading the specific situation of Stonefish, Zhang Yu showed a smile on his face: "Not bad! Stonefish actually contains 1.2% iron and 2.9% aluminum plus other resources, which is better than other asteroids in interstellar space. a lot of."

"Indeed, this saves us a lot of effort." The vice-captain and construction engineer Barus also laughed.

The resource situation of the stone fish star has indeed reduced a lot of their troubles.

After all, the core components of dark stars in interstellar space are mostly water ice, dry ice and silicate, and the content of metal elements is very small.

"Report, Cage and the others have successfully landed in the Fisheye impact crater of Stonefish."

Zhang Yu turned his head and ordered: "Let them start manipulating the nanorobots to build a landing platform."

"receive."

Although the accompanying flight of the Pinder spacecraft is semi-inertial, it only needs to use the auxiliary thrusters occasionally to modify the flight direction, but the working medium of the Pinder spacecraft is limited, and they must try not to waste it.

In less than 23 hours, the landing platform in the Yumu impact crater was modified.

Zhang Yu, who received the news, immediately directed the Pyro spacecraft to land on Stonefish.

When the Tinder spacecraft successfully landed on the Stonefish planet, it meant that the work of transforming the Stonefish planet had begun in an all-round way.

First of all, the first facility to be built is the water resource refining plant, followed by the nuclear fusion power system manufacturing plant.

The joint operation of civilized tinder and life metal can reproduce most of the current Homo sapiens technology, which naturally includes controllable nuclear fusion power generation technology.

After 17 days.

After the Stone Fish Star No. [-] nuclear power plant was put into use, the productivity of nano-robots and controllable microorganisms with abundant electric power exploded exponentially.

At this time, inside the command center of Stone Fish Star Fortress.

Zhang Yu looked at the star map of Stone Fish within a radius of 5 million kilometers. This is a very high-precision star map, and all asteroids with a star body larger than 1 meter this time are recorded in it.

I saw that the star map was densely covered with light spots, and these light spots were asteroids floating around.

Vice-captain Barus spread his hands helplessly: "Captain, there are no large asteroids within a radius of 5 million kilometers."

The large asteroids they refer to refer to asteroids with a star radius of 100-1000 kilometers; and stars with a radius of 1000-3000 kilometers are called dwarf planets;
半径10～100公里的星体为中型小行星；半径1～10公里的星体为小型小行星；半径低于1公里的星体，则是微型小行星。

At this time, there are only 5 medium-sized asteroids, 27 small asteroids, and 428 tiny asteroids in the star field with a radius of 58397 million kilometers of Stone Fish.

The surrounding resources are so poor, which is not beyond Zhang Yu's expectation. After all, this is an empty interstellar space. He randomly circled four of the medium-sized asteroids:

"Let's focus on mining these 4 medium-sized asteroids first!"

The metal content of these four medium-sized asteroids is relatively high, and they have become the priority mining targets of the Stonefish Star Fortress.

"No problem, arrange it right away." Nobumi Jintian, who is in charge of the remote mining work, nodded.

Half an hour later, a 1-ton mining spacecraft flew towards the target at a speed of 5000 kilometers per second.

And Zhang Yu began to prepare for the manufacture of weapons and equipment.

"Ebony Spring!"

"Captain, what's the matter?" Wu Muquan, who was in charge of combat preparations, floated over.

Zhang Yu didn't talk nonsense: "Which weapon and equipment plan of the Space Defense Department are you going to use?"

Wumuquan, who had been prepared for a long time, replied calmly: "Plan 53, this is the best arrangement at present based on the resources of our fortress."

"Okay! You get ready! I always feel a little uneasy without a weapon in place."

"The captain also got the lack of firepower phobia?"

Zhang Yu shrugged: "There is no way. The nearest border fort is 723 billion kilometers away, and the surrounding area is empty. We haven't covered up here yet. Who knows if enemies will suddenly appear."

This is also one of the troubles of the Dark Star Project and the Interstellar Fortress Project.

In the interstellar space, all first-level civilizations with relatively high technology can more or less detect the existence of dark stars.

Once the opponent's spacecraft passes by the vicinity of the solar system, it will definitely give priority to mining the resources of the dark star as a supply.

As for why not directly enter the planetary system to collect matter, the reason is naturally for safety considerations.

Aliens are certainly not that stupid. They usually do not directly enter a planetary system without finding out the internal information of a strange planetary system.

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