It's reasonable for me to have a two-way foil for a second-level civilization, right?

Speaking of this, Lu Yongchang made an explosive gesture: "When it enters the atmosphere of Dawn Star, we will completely smash it to reduce its impact on the ground."

"When a large number of rivers, lakes, and oceans appear on the surface of Dawn Star, we can start the second step of the plan."

Under Zero's control, the holographic screen switches rapidly.

"Ross 154 nitrogen-fixing cyanobacteria."

"Compared with the nitrogen-fixing plants on the earth, the nitrogen-fixing cyanobacteria on Ross 154 have a stronger nitrogen-fixing ability and a shorter growth cycle."

"Through genetic modification, we can also give it the ability to photosynthesize."

"While converting part of the carbon dioxide into oxygen, it absorbs a large amount of nitrogen in the atmosphere, so as to greatly reduce the pressure of the dawn star and improve the atmospheric composition of the dawn star."

Chapter 446 An Abnormal Phenomenon Found in the Target Area

"professor."

"Although a high-pressure environment can significantly improve the body's oxygen absorption efficiency."

"but,"

"According to the test, the concentration of carbon dioxide in the atmosphere of Dawn Star is 1.14%. Even if all of it is converted into oxygen, the oxygen concentration is not enough to support normal human activities."

Fan Yi frowned and said, "I think that in addition to relying on biological effects, large-scale atmospheric modification is still essential."

"Even if it takes a lot of resources, this is a step that cannot be skipped."

The corners of Lu Yongchang's mouth rose slightly, and a mysterious smile appeared on his face.

"Did you forget the layer of hematite on the surface of Dawn Star?"

Fan Yi couldn't help being stunned.

Suddenly, he seemed to realize something, and his expression suddenly became excited!

He clasped his hands together and murmured excitedly, "Yes, yes, and hematite!"

"Carbon and iron oxide react at high temperature to form iron and carbon dioxide."

"The carbon dioxide produced is then converted into oxygen by photosynthesis in Ross 154 nitrogen-fixing cyanobacteria."

Fan Yi suddenly raised his head and looked at Lu Yongchang in front of him with burning eyes: "This, this is a perfect cycle!"

"That's right." Lu Yongchang said with a smile, "In this way, planetary transformation not only does not hinder our development speed, but even has a certain promotion effect."

"When the various infrastructure constructions are completed, the atmospheric composition of Dawn Star will slowly approach the Earth."

"And we only need to pay a certain amount of waiting time."

Speaking of this, Lu Yongchang shrugged: "Of course, the whole process must not be that simple."

"The process of transforming the surface environment of the entire planet will involve a lot of uncertain factors."

"Next, our main job is to build a complete planetary model, make all preparations, and wait for the arrival of Nero."

"As for the transformation of nitrogen-fixing cyanobacteria, the biological laboratory is already underway."

……

Central region of the Milky Way.

The man-made planets belonging to the Sweeper civilization remained motionless as they had hundreds of years ago.

No rotation, no revolution, no gravity...

There is no way to observe the existence of this planet except with the naked eye.

It is like a virtual projection, quietly staying in the central area of ​​the galaxy, declaring its sovereignty to the surroundings.

The interior of the artificial planet is a bizarre scene.

Pieces of light curtains flickered, presenting information from all corners of the galaxy.

Sweeper 9527, surrounded by light curtains, slumped lazily on a chair.

"Sir, the detector found an anomaly in the target area."

An obscure voice sounded inside the artificial planet.

"What?" Sweeper 9527's visual organs quickly looked in the direction of the sound.

"A black dwarf." The obscure voice sounded again.

"Oh?" Sweeper 9527, who was originally slumped on the seat, had a look of surprise on his face, straightened up, and waved his tentacles to control the light curtain in front of him.

"Black dwarf..."

"Have you searched it?"

"Is it in our astral database?"

"No." After a moment of silence, the subordinate reported again in an extremely obscure tone, "In the star database, there are no black dwarfs in this area."

The voice paused, and then rang again: "At least, within a thousand light-years, there is no record of black dwarfs."

Sweeper 9527's tentacles waved in the air subconsciously.

It's his way of expressing excitement.

"Finally can't hide..."

He flicked the light curtain in front of him with his tentacles, and muttered to himself, "An extra black dwarf appeared out of nowhere, are you ready to absorb energy and fight to the death?"

"Sir, what do you mean..." There was some doubt in the subordinate's voice, "Is this made by [painting]?"

Sweeper 9527 didn't answer, but the range of waving tentacles became bigger and bigger.

Obviously, the information on the light curtain made him more and more excited!

"found it."

"Star KZQXD771, a red dwarf star, has an estimated remaining lifespan of 1.5 trillion years." Sweeper 9527 murmured in a low voice, dancing.

"Sir?" The subordinates became more and more confused, "The extraction and utilization of star energy should be a necessary technology for a sixth-level civilization."

"Although the Milky Way is a bit remote, there are still some sixth-level civilizations."

"How can you be sure that this is the behavior of [Hua]?"

The movement of Sweeper 9527's tentacles slowed down a bit.

He turned his head and looked at his subordinates with a strange expression: "Are you...sure that the technology mastered by the sixth-level civilization can turn a red dwarf into a black dwarf within 200 years?"

"Let's not talk about the sixth-level civilization, even the star devourer is very difficult to do this."

"200 years?!" The subordinate was stunned, and exclaimed, "How is this possible?!"

Sweeper 9527 moved its tentacles slightly, and dragged a light curtain in front of the subordinate: "The last time the probe observed the star KZQXD771 was 200 years ago."

"At that time, it was still an extremely young and healthy red dwarf."

"Within 200 years, completely drain the energy of a red dwarf..."

"The large mass-energy conversion device of the mother civilization can easily do it."

"But it's in our warehouse."

"Besides [painting], I can't think of any other civilization in the Milky Way that has such strength."

"But..." the subordinate said hesitantly, "Why would it do that?"

"I mean, it can absorb energy secretly, not so blatantly..."

Sweeper 9527 looked gloomy.

"That's a good guess."

"Perhaps its injury is too serious, and it urgently needs a lot of energy to repair itself."

"Or maybe...it has recovered from its injuries and is fully preparing for battle."

"Whatever it is, it's what we're looking forward to."

"After waiting for so long, this war can finally come to an end!"

Speaking of this, Sweeper 9527 stood up from his seat, and his tentacles slid across a light curtain again.

"Order."

"The detectors within a thousand light-years of the star KZQXD771 all enter the state of curvature."

"I need to get all the data of that black dwarf in the shortest possible time."

Sweeper 9527 pondered for a moment, then said again: "Activate the planetary fortress and prepare for war."

After the voice fell, the atmosphere in the man-made planet suddenly became quiet.

"Yes!"

at the same time.

The man-made planet, which was originally stationary in space, slowly rotated.

Chapter 447 Triangulum Galaxy

Virgo Supercluster, Local Group of Galaxies, Triangulum Galaxy.

As the third largest galaxy in the local group of galaxies, the Triangulum galaxy with a diameter of 6 light-years has bred many civilizations.

The two-dimensional creature [Painting], as one of the best, followed the [Outsider] billions of years ago, set foot on the [Galaxy Bridge], and embarked on the road to leave home.

The so-called [Galaxy Bridge] is a long "bridge" built by neutral hydrogen atom clumps between the Triangulum Galaxy and the Andromeda Galaxy.

【Galaxy Bridge】appeared 50 billion years ago. The reason for its formation is unclear. Preliminary speculation is that it is a means of high-level civilization, and its purpose is unknown.

Recently, [Galaxy Bridge] flickered abnormally, and the reason is unknown.

Triangulum Galaxy

The above content is excerpted from the Chronicle of the Triangulum Galaxy.

……

Near the central black hole of the Triangulum galaxy.

A group of "silk threads" twisted freely in the empty space of the universe as if they had their own consciousness.

The massive gravitational pull of the central black hole doesn't seem to have any effect on it.

The thread is extremely long.

The diameter of the silk thread group even reached a light-year.

If civilizations use detection instruments to detect this group of "silk threads", they will be surprised to find that this group of silk threads has no so-called height and width.

On it, there is only the concept of length.

Even, it is impossible to find the starting point and end point of this "silk thread", as if it is a thin thread extending infinitely!

A burst of obscure fluctuations came from infinity, making the twisting movement of this [silk thread] stiff for a moment.

In the cosmic space next to the silk ball, a "shadow" appeared.

A burst of fluctuations of the same nature came from the "shadow".

"[Si], do you feel it?"

The next moment, the twisted "silk thread" also sent out an equally obscure wave.

"Feel."

“[Hua] is dead, and our strength is weakened again.”

"The Sweeper civilization is too powerful, even in a remote area like the Milky Way." The message sent by [Si] was full of frustration and helplessness, "We may be about to fail."

"No, feel it carefully." A message came from the shadow again, "[Painting] encrypted the message."

"..."

After a moment of silence, the silk thread twisted again.

"Yes, you are right!"

"[Painting] is not dead!"

This time, the message from [Silk] was full of joy: "It is implementing its plan!"

"Yes!" The obscure fluctuations in the shadow became more and more intense, "Perhaps, we won't have to stay in this small corner soon!"