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

After a few minutes.

The side hatch of the huge flagship located in the center of the fleet slowly opened.

A large number of detectors lined up in a neat queue, and filed out from the hatch.

After a short stay, they drive the antimatter engines and accelerate towards the star system ahead.

……

"Professor, welcome to the year 3608 of the Earth's calendar."

The electronically synthesized sound rang in Lu Yongchang's ears, awakening his mind that had not yet fully recovered.

"3608 years..."

Lu Yongchang closed his eyes slightly, and murmured in a low voice.

He coughed out the remaining deep sea fluid, took a deep breath and asked in a deep voice, "Where is the fleet?"

"It is currently 0.01 light-years away from the target star system." Zero quickly responded.

Hearing this, he opened his eyes suddenly, deep in his eyes, a trace of strong shock flashed.

Fast, really fast!

In just 308 years, the human fleet has traveled an unimaginable distance before!

"Are there no accidents during the voyage?"

Lu Yongchang asked in a low voice while struggling to get up from the hibernation cabin.

"According to the plan, the energy replenishment points are all planet-free star systems." Ling responded meticulously to Lu Yongchang's question, "Therefore, no traces of advanced civilizations were detected during the voyage."

Lu Yongchang nodded to express his understanding.

Also normal.

Ever since the earth-shattering war between the Sweeper civilization and the Pastoralism, this part of the Milky Way has become almost a place of silence.

Higher civilizations naturally dare not "speak out" hastily.

And lower civilizations, not to mention.

This is also one of the reasons why Lu Yongchang dared to take the risk of crossing 1539 light years.

"Are the other academicians awake?"

After getting an affirmative answer from Ling, Lu Yongchang put on his clothes and walked towards the door: "Tell them to report to the command center immediately."

"Roger that!"

……

【Earth】in the command center.

Lu Yongchang and a group of academicians looked carefully at the various data sent back by the detector.

He waved his hand and called up the basic information of the Kepler 452 star system from the information in front of him.

A high-definition image of a planet appeared in a huge holographic projection.

"It is basically consistent with the observation results of He Bilin."

"The Kepler 452 star system consists of six planets, including two gas giants, an iron planet, an ice giant and two rocky planets."

"The main star is an orange dwarf. Compared with the sun, its mass and size are relatively small, and the stellar activity is relatively gentle and gentle, enough to provide us with a good living environment."

(The Sun is a yellow dwarf, and orange dwarfs are larger than red dwarfs and smaller than yellow dwarfs.)

"Among them, the first planet, Kepler 452b, is a rocky planet with a surface gravity of 2.03g."

"Preliminary detection shows that there is less liquid water on the surface."

"However, the probe has discovered several comets containing a lot of water resources in the star system, so there is no need to worry about water resources."

Speaking of this, Lu Yongchang's voice paused slightly.

"The atmosphere is made up of carbon dioxide, oxygen and nitrogen."

"According to the calculation formula, the similarity between Kepler 452b and the Earth is 0.91!"

While speaking, Lu Yongchang called up the surface image of Kepler 452b.

"So tall?!" Fang Xu beside him exclaimed in a low voice.

The planetary similarity is based on various factors such as atmosphere, geological conditions, gravity, etc., and is evaluated comprehensively.

With the planetary transformation technology mastered by human civilization today, as long as a planet with a similarity to the earth reaches more than 0.7, it can become a candidate colony planet for human civilization.

The similarity of 0.91 means that they only need to carry out a simple transformation, and this planet can become the best settlement place for human beings!

After a brief exclamation, Fang Xu immediately asked: "Have any signs of life been found in the Kepler 452 star system?"

Such a livable living environment has a great possibility to develop civilization!

The electronically synthesized voice sounded quickly: "The probes sent out have completed detailed investigations on six planets."

"As of now, no signs of life have been found on the surface of the six planets."

"but……"

Lu Yongchang's eyes moved slightly, and he stopped looking up the data in his hands.

"But?" He frowned slightly and asked in a low voice.

"A year ago, the detector found traces of biological activities and biological fossils in the formation of Kepler 452b."

"Hiss!" There was a gasp in the command center.

"Biofossils?!" Mao Zhengzhi excitedly stood up from his seat and asked eagerly,

"Has it been tested? When is the creature?"

"Preliminary inspection data show that these organisms lived [-] million years ago."

"...[-] million years ago?"

Zero's answer poured cold water on Mao Zhengzhi.

Five hundred million years.

It's too long.

Long enough to annihilate any illusions.

"What's the reason?" Fang Xu's face gradually turned serious, "What's the reason for their demise?"

"I think it should be the greenhouse effect."

Lv Yongchang stretched out his finger, and lightly tapped a piece of data in the holographic projection.

carbon dioxide concentration.

"It's kind of like Earth being Venusized."

Lu Yongchang touched his chin lightly and said softly.

ps: Thanks to Sun Leap! ! !The Great God certification sent by the boss!

Chapter 663 Planetary Transformation Plan

"Venusization?"

Fang Xu asked in a low voice.

Before Lu Yongchang could speak, He Bilin stepped forward and took the conversation: "Yes."

"Currently, the greenhouse effect on Kepler-452b is severe."

"According to the data sent back by the probe, there were large oceans on this planet [-] million years ago."

"With the greenhouse effect running out of control, the temperature of the planet's surface increased rapidly, and the ocean was gradually evaporated and gradually dissipated by the stellar wind."

"However, due to its huge mass and relatively strong gravitational force, there are still some small lakes on its surface to this day."

Fang Xu understood: "So, generally speaking, the priority target of the planetary transformation plan is its out-of-control greenhouse effect?"

He Bilin nodded lightly: "It can be said so."

Lu Yongchang also turned his head to look at an academician sitting in the corner of the command center.

He smiled gently and greeted softly: "Academician Shen, it's your turn to study the field."

Hearing Lu Yongchang's call, Shen Siwen quickly stood up from his seat.

There was a touch of excitement in his eyes, and he responded with a strong tone: "Professor, I am here!"

No wonder he reacted so strongly.

Academician Shen Siwen, who studies biosphere technology and planetary terraforming technology, does not attract much attention most of the time.

The reason...

Except for the time on Dawn Star, the fleet has been fleeing for their lives or mining resources, and has no time or conditions to transform habitable planets.

And the planetary transformation technology belongs to the macroscopic technology of extremely large scale.

At the same time, the computing power resources allocated to him are not enough for him to simulate the detailed changes of a planet during the transformation process.

For Shen Siwen, it has been a long time since he conducted a comprehensive research on planetary transformation.

Shen Siwen's reaction was completely noticed by Lu Yongchang.

As a scientific researcher, he naturally knew the reason why Shen Siwen reacted like this.

He sighed silently in his heart, and the gentle smile on his face became stronger again.

"Academician Shen, calm down."

"Human civilization is about to start a new era, and your research project will receive more resources from the People's Federation."

"It's not just Kepler 452b, there are probably many planets in the star system around us waiting for you to draw up a transformation plan."

Lu Yongchang's words made Shen Siwen's mood even more agitated.

"well……"

Shen Siwen's lips trembled slightly, and he responded repeatedly: "Professor, don't worry, I will draw up a transformation plan for Kepler 452b as soon as possible!"

……

a week later.

Under Zero's control, the huge fleet precisely and slowly stopped near Kepler 452b.

Hundreds of engineering ships and [Glutton] material ships took the lead, and driven by the anti-matter engine, they quickly flew towards the orange dwarf star not far away that emitted a gentle light.

Their task is simple.

Rebuild the [Dyson Cloud] antimatter factory in the shortest possible time, and quickly replenish the antimatter reserves consumed during ultra-long-distance voyages.

In addition, the space mobile factories are also under the control of Zero, and they are unfolding around Kepler 452b one by one.

After only a week, the originally desolate star system has become lively.

Small starships shuttle back and forth between planets, transporting various materials; mechanical arms with a length of several kilometers move slowly in the universe, delicately and quickly completing their respective manufacturing tasks...

【Earth】, the flagship of human civilization, quietly stays not far from Kepler 452b.

The antimatter engine at its tail emits weak gamma rays, driving this "old" flagship to silently follow Kepler 452b.

in the command center.

Shen Siwen stood in front of the academicians with a serious expression.

The real-time image of Kepler 452b is being displayed on the holographic projection beside him.

"Academicians, the planetary transformation plan has been completed and passed the preliminary verification of zero." He said in a deep voice, "Next, I will briefly introduce the transformation plan for you."

As he spoke, he reached out and swiped across the holographic projection.

"First, there is an urgent need to address the intense, runaway greenhouse effect on the planet."

"Considering the problem of the transformation cycle, I am not going to choose the traditional [Atmospheric Reformer No. [-]] to carry out the transformation."

After the voice fell, a familiar yet unfamiliar thing appeared in the holographic projection.

"This is……"