The larger the spaceship, the more aspects involved, not to mention, but also to mass-produce the 'explorer', tens of billions of 'explorers' consume a lot of resources, need to consume a lot of mineral resources.

A suitable galaxy with a lot of resource stars, mineral stars, energy stars, a planet with water resources,...... , the total general conditions must be met.

After Wuheng returned to the original universe, Zhou Xiaozhi carried out a carpet screening of the surrounding galaxies, excluding thousands of star systems.

"Boss, the RT278 galaxy best meets our requirements, are you sure to go there?" Zhou Xiaozhi reported to Zhou Xing.

"Well, I found it, what is the situation with the RT278 galaxy?" Zhou Xing happily asked Zhou Xiaozhi.

"The RT278 galaxy is a giant star system, 6,700 light-years away, the mass of the star is 67 times that of the sun, there are 172 planets, the sixteenth planet meets our requirements, it is located in the adaptation zone of life, the volume is 20 times that of the earth, the waterway ratio is 4:6, it has four satellites, the first satellite, contains a huge amount of iron ore, rich in potassium, phosphorus and rare earth elements, thorium, uranium and other resources, the second satellite, rich in iron and titanium, in addition to common elements are also rich in helium-3, cerium, rhenium, zinc...... ,, this one meets the requirements of the Explorer project. Zhou Xiaozhi said in detail.

"Is there a sign of the existence of a smart civilization if there are water resources?" Zhou Xing asked worriedly.

"No, the planet is too large and has a huge gravity to attract asteroid impacts,...... , the constraints of the general environment are not suitable for the birth of a smart civilization!" Zhou Xiaozhi looked at Zhou Xing and replied.

Zhou Xing nodded, if it weren't for the use of environmental transformation technology, the birth of a planet and the birth of a smart civilization would require many factors at the same time.

First of all, a small star is needed, the planet must be in the right position in the star system, and there are gas giants on the periphery to sweep away the asteroids flying around; then the satellite can stabilize the tilt of the earth's axis, bring tides and seasons, and bring the possibility of the arrangement and combination of complex elements, secondly, the crust and the oceans just have all kinds of organic matter needed for the formation of life, and secondly, the planet needs to be born at the right time, and become extinct at the right time, making room for higher life.

According to Robin Hansen's "Great Filter" theory, the basic characteristics of civilization are the appropriation of resources and colonial expansion, and according to the development rate of human civilization, it is possible to achieve "explosive expansion of civilization" in the next thousand years, when human beings will colonize the entire galaxy for tens of thousands of years.

Moreover, as long as this explosive expansion develops to the point where the supernova explosion cannot be completely destroyed, humanity will continue to expand indefinitely until it encounters another expanding higher civilization.

This galaxy shows no signs of intelligent civilization, which means that it is another desolate galaxy.

"Is the RT278 galaxy going to be our new home?" Tang Xin looked at the star cluster on the screen.

"Well, it's good for the Explorer project. Zhou Xing nodded, looked at Zhou Xiaozhi and ordered, "Xiaozhi, let's go over!"

"Okay, boss!" Zhou Xiaozhi answered, and in an instant, the Wuheng turned the bow of the ship, preparing to continue shuttling through the wormhole.

The vastness of the universe, the galaxies occupied by intelligent civilizations, are nothing compared to them, and there are desolate galaxies everywhere, which can become a habitat as long as it is suitable.

After a few hours of flying through a wormhole, Wuheng arrived at its destination, a giant planet orbited by four moons.

The giant planet is a reddish and blue color as far as the eye can see, because the planet has oceans, and the land is rich in iron oxide, and it is desolate and devoid of any greenery.

After Wuheng entered the orbit of the giant planet, the lower belly hatch opened, and a large wave of transport ships flew out.

Under the leadership of Zhou Xiaozhi, the vast project of the Explorer project was launched on the giant planet, where the robot army assembled energy stations, smelters, collected resources, and formed a machine manufacturing plant to replicate itself,...... , the scale of the project is getting bigger and bigger.

The Explorer project is the third time that Wuheng has started construction without anything, and a lot of experience has been accumulated, and everyone quickly entered the working state, completing various auxiliary work according to Zhou Xiaozhi's arrangement.

Wuheng - Command room, Zhou Xing sat in front of the command platform, his eyes staring at the holographic screen, his brows furrowed.

Seeing that the holographic screen had been playing the unpredictable nebula map, Tang Xin knew what Zhou Xing was doing.

Tang Xin held a porcelain bowl in both hands and placed it in front of Zhou Xing's table, and asked with a smile, "Xing, are you still thinking about the war that broke out in that galaxy?"

"Yes, the two opposing civilizations are of equal strength, and they should have mastered the stellar weapon, or the black hole weapon. Zhou Xing nodded and sighed.

The rise of modern human civilization is only two or three hundred years, and compared with other intelligent civilizations, tens of thousands of years, decades of time is too little, even with the assistance of a great scientist assistance system, he can't do it alone!

The development of civilization is the result of the joint efforts of a group, and top scientists can only play a leading role in certain fields.

For example, although Zhou Xing can infer the manufacturing ideas and methods of weapons of this level displayed by these two civilizations, there are still countless problems to overcome when it comes to production and manufacturing.

"Okay! Drink this bowl of soup first, and then study it after drinking. Tang Xin looked at Zhou Xing and signaled with a smile.

Zhou Xing nodded, hurriedly picked up the bowl, 'grunted' a few times, and drank the soup in one gulp.

"Xing, how can we find a way back to Earth?" Tang Xin said with emotion as he looked at the unfamiliar galaxy outside the command ship.

Wuheng lost its way to other universes and lost contact with the earth, so many years have passed, it should be sad over there!

Hearing this, Zhou Xing hurriedly stood up, put his arm around Tang Xin's shoulder, and said comfortingly: "Soon, once the explorer has formed a scale, it won't take a few years to explore the wormhole that has returned to the earth." ”

"Hmm, really?" Tang Xin's eyes flashed with surprise, she thought it would be difficult to see her parents in this life!

Zhou Xing smiled confidently, looked at Zhou Xiaozhi and ordered, "Xiaozhi, expand the model diagram of the 'Cosmic Tree'." ”

"Okay, boss!" Zhou Xiaozhi responded, and in an instant, a 'tree'-shaped model composed of countless black balls appeared on the holographic screen.

"This is what the 'Cosmic Tree' looks like?" Tang Xin asked as he looked at the holographic screen.

Each black ball represents a universe, and those linked 'tree trunks' represent cosmic wormholes, through which explorers will continue to advance, like a drug injected into the human body, spreading along the blood vessels, and finally forming a diagram of the structure of the cosmic wormhole network, using this kind of net exploration, it will soon be able to find the wormhole that returns to the earth. Zhou Xing looked at Tang Xin and introduced with a smile.

"It would be great if I could really do it, I miss home!" Tang Xin hugged Zhou Xing excitedly.

"Me too, the Discovery project will continue forever, and the chances of finding Xiaoyu are much greater. Zhou Xing lowered his head next to Tang Xin's ear and said softly.

Hearing this, Tang Xin's spirit was shocked, and he raised his head and looked at Zhou Xing with shining eyes: "Really? It would be great if we could find Xiaoyu to go home with us! ”

Zhou Xing nodded solemnly, time passed year after year, and he was also eager for the family to reunite as soon as possible.