The third day after discovering the strange black circle.

Xuannv 1 entered the earth's atmosphere again and slowly landed at the Xia State National Aerospace Research Institute.

A series of rocks and black circle samples excavated on the moon were sent to the laboratory of the institute immediately.

Lu Yongchang looked at the black substance on the experimental table in front of him, and a hint of exclamation flashed in his eyes.

Under the light, the black matter glows with a little reflection.

"I have to say, this thing looks pretty good." Lu Yongchang whispered.

Cao Liangcai leaned over his head, glanced at the black substance on the experimental table, and nodded slightly: "It's really pretty, it's just..."

"It's the same Hall thruster, ours doesn't seem to achieve this effect, right?"

Hearing this, Lu Yongchang's eyes showed a little helplessness.

Of course it cannot be achieved.

If the same effect can be achieved, Xuannv No. 1 can probably fly out of the solar system.

"Old Cao, help me identify when this thing was formed."

Cao Liangcai was slightly stunned.

"When did it form? What are you studying this for?"

"It is urgent now. Shouldn't we study the components of this black substance?"

Lu Yongchang's deep gaze stared at the glazed substance in front of him and said softly: "I want to model and reverse the aircraft where it went!"

...

"The result is out."

Cao Liangcai had a little horror in his eyes: "You may not believe it when you say it. This thing was actually formed five years ago!"

"The specific time is difficult to calculate, there is only one approximate time, which should be around December 2025."

When Lu Yongchang heard this critical time point, his heart skipped a beat.

Five years ago.

It is the time when the traveler leaves the solar system.

It’s not so unlucky... The two Traveler detectors were actually picked up by two civilizations?

Thinking of this, a bitter expression appeared on Lu Yongchang's face.

This is really...

"What's wrong?"

Seeing the bitter expression on Lu Yongchang's face, Cao Liangcai frowned and asked in a low voice: "Is there anything special about this time?"

Lu Yongchang hesitated for a moment and told Cao Liangcai his guess.

"Damn..."

"Is the tnd Sun crisis caused by the United States?" Cao Liangcai's face turned red in an instant, "No, I have to settle the score with them!"

"Come on, this thing is just my guess." Lu Yongcang shrugged and said unhappily, "What's more, how do you want to settle the score?"

"According to the current situation, even if Xia Guo Technology is the only one, we will not be able to easily attack other countries."

"We have only 15 years left in total. We can't spend a year or two on infighting, right?"

"What's more, no matter how rubbish they are, we are all human civilizations on the scale of the universe."

Cao Liangcai chuckled awkwardly and scratched the back of his head: "I didn't think so much... I just think that it's enough for our Xia Kingdom to take it out. Other countries have nothing to do with us!"

Lu Yongchang slowly shook his head.

"You can't say that."

"Whether it is from the genetic level or from the evolutionary perspective, keeping them will only be more beneficial to our Xia Kingdom."

As he said that, a little deeper look appeared in Lu Yongchang's eyes: "After apes become humans, our evolution has come to a standstill."

“To adapt to the universe, we must start evolution again.”

"The genes of different races will only benefit Xia Guo."

"It is absolutely impossible to go far in this dark universe."

Cao Liangcai nodded thoughtfully.

There is some truth to it.

"Of course." A little cold light flashed in Lu Yongchang's eyes, "All this I said was led by Xia State."

"If someone who is blind to the eye wants to make trouble at this time, I will let him know what despair is!"

Cao Liangcai's eyes twitched a few times, and he quickly changed the topic: "Cough cough! I've been going far away."

"The data has come out, and we can start modeling and reverse sequential."

Lu Yongchang came to his senses and looked down at the data in front of him.

After entering the data into the model you created, the computer quickly gave a conclusion.

"hiss……"

Lu Yongchang gasped: "How could this be like this..."

The simulation results clearly point to the direction of Proxima Centauri.

In other words, the alien civilization that uses Hall propulsion technology comes from Proxima Centauri, which is only 4.22 light years away from the earth!

4.22 light years!

This is an extremely small distance on the cosmic scale.

It's basically like a neighbor who is separated by a wall!

A cold sweat suddenly broke out from behind Lu Yongchang.

This...humans have spent so long searching for alien civilizations, but they don’t know that the real extraterrestrial civilization is next door!

Cao Liangcai, who was standing by, looked horrified when he saw this result.

"This result... will not go wrong, right?" He swallowed slightly and whispered.

Lu Yongchang didn't say anything, but just lowered his head and checked it quickly.

After the same result appeared in the second simulation, Lu Yongchang sighed deeply.

"It should be true."

"They are right next to us."

Lu Yongchang's face looked so ugly.

Now, human civilization is not only facing the sun crisis, but also has to deal with the invasion of a more advanced civilization!

What's even more terrifying is that they don't even know when this civilization will fully enter the solar system!

"What should we do?"

Faced with Cao Liangcai's question, Lu Yongchang fell into a long silence.

what to do?

How did he know what to do?!

This is simply a natural disaster and man-made disaster!

It's a difficult start to hell!

Hiding in the solar system is definitely not a way to survive.

Out of the solar system, Proxima Centauri, which is 4.22 light years away, is another necessary choice.

Navigating across stellar systems is not like sailing within stellar systems.

Outside the star system is an endless "blank area".

It can be said that in such interstellar space, humans will not receive any supplies.

Therefore, the first time the target of sailing across the star system can only be the closest Proxima Centauri.

As for the α-Star Centaurus, which is 4.3 light years away from Earth... there is no planet in its star system.

(For the sake of plot progress and setting this way, it is very likely that there is an Earth-like planet in the habitable zone of Centauri.)

Before humans can obtain the technology to convert energy into matter inversely, planets are always an indispensable source of materials.

Gasy planets can provide hydrogen and helium, providing energy for the next interstellar voyage, and solid planets can provide various essential elements of carbon-based organisms, carbon, oxygen...

His brain was running wildly, combing out all the information currently known.
Chapter completed!