The meeting lasted a full 24 hours, during which hundreds of plans, both big and small, were discussed and agreed upon. In the face of the survival crisis, the mad scientists brought out all their ingenuity. Ideas such as artificial glucose synthesis and artificial protein synthesis emerged, but were put on hold for various reasons.

Human technology, when tested by the specter of life - and - death, seemed so feeble. In fact, without the aid of plants, humans hadn't even managed to synthesize glucose artificially!

It was not until the early morning of the next day that Yu Yifeng walked out of the meeting room, looking exhausted. However, the glimmer of hope in his eyes could not be concealed. The plan had been formulated, and as long as it was carried out, there was still hope for humanity!

The perfect - element, unexpectedly, remained the greatest hope!

During the meeting, a scientist proposed using the perfect - element to cultivate a batch of super - plants, and then using these super - plants to produce food!

After all, three months was an extremely short time. Just arranging the venue and manufacturing new equipment would take a significant amount of time. Moreover, ordinary plants had weak environmental adaptability. A single air leak or malfunction of the cultivation equipment could easily claim their lives, and humanity simply could not afford such failures!

But super - plants did not have such problems. For example, super - rice, after being transformed by the perfect - element, had changed from an herbaceous plant to a woody one. It was tall in stature, had increased yields, and its environmental adaptability was greatly enhanced.

This super - rice was not only cold - and heat - resistant but could even survive for a short time in the extreme cosmic environment. Although it was just a short time, it was already sufficient!

And the time required for super - rice to grow from germination to maturity was only two months, which meant that humanity had at least one month of preparation time! In this way, the time was much more abundant.

"The previous Federal Government had extremely strict control over the perfect - element. Any experiment required written approval. Now the situation is different." Yu Yifeng recalled. "The amount of perfect - element preserved in the Moon base is sufficient for six million people. Currently, our population is only fifty - thousand... So, it's not unreasonable to use some on plants."

Dr. Roman nodded upon hearing this, but then said worriedly, "However, the control over the perfect - element still needs to continue. We don't understand its principle. If it's used recklessly and something like super - insects or super - bacteria emerges, it will be a huge disaster."

Currently, humanity's exploration of the perfect - element was still only on the surface. They only knew that it had an evolutionary effect on life, but they didn't know how it worked. The direction of this evolution was uncontrollable and unpredictable. If a biochemical crisis or something like an alien creature really emerged, then all of humanity would be doomed.

"Yes, technology has always been a double - edged sword. Some control is definitely necessary." Yu Yifeng nodded.

At this moment, the group was on their way to the alien spaceship, which was also the core of the entire base. It was deeply buried beneath the surface of the Mare Imbrium. According to the plan, all humans would gradually move into this spaceship in the future, and the surface area would be vacated for cultivating plants.

Although this was not the first time Yu Yifeng had seen this spaceship, he was still deeply astonished by the sight before him. It was enormous, stretching as far as the eye could see. According to measurements, it had a diameter of a full 15 kilometers. Such a massive volume was beyond the reach of human technology to manufacture.

It was not streamlined, nor did it resemble a flying saucer. Instead, it was a perfect sphere, like a hollow lead ball. The surface of the ship's hull was made of a silver - gray metallic substance, hard and thick. In fact, people had once studied this unknown material, but due to the vast technological gap, there had been no progress in 30 years.

It was not the "neutron - star material" from science - fiction novels. Different from any known substance, under a scanning tunneling microscope, no atomic structure could be seen, no electrons, no atomic nuclei... It remained a dense entity, clearly beyond human comprehension.

It was completely smooth, and even at the atomic scale, it was still smooth. The friction on the surface of the sphere was almost zero, so the surface of the spaceship appeared spotless and glistened.

Now people had a sense of self - awareness, and few people studied this unknown material anymore. They only knew that it was a product of the same technological level as the perfect - element. It was hard and reliable enough. Perhaps when technology advanced in the future, someone would consider this issue again.

Yu Yifeng walked around the spaceship and discovered objects like "mirrors" on the surface of the ship's hull. These "mirrors" were a bit like water surfaces hanging on a wall, with ripples appearing from time to time, which was truly amazing. He reached his hand into this "water surface", and his entire palm actually passed through it as if it had disappeared. When he pulled his hand back out, he found that his palm was still intact.

"Captain Yu, these water - like things are the entrances to the spaceship." Physicist Felix introduced. "There are a total of over two thousand entrances of various sizes. Since the surface of the spaceship is completely smooth and there's almost no way to gain leverage, we can only mount facilities outward through these entrances. Look, this is also the entrance to our Moon laboratory. Please come in."

This entrance was a full six to seven meters wide. Without hesitation, Yu Yifeng got up and entered this "water surface". In an instant, he felt as if he had crossed into another world. His center of gravity became unstable, and his body swayed.

Gravity! He actually felt gravity similar to that on Earth!

The gravitational acceleration on Earth was approximately 9.8 meters per second squared, which was also the gravity that humans were more accustomed to. The gravity on the Moon was only one - sixth that of Earth, so people walked with a light, floating feeling. But at this moment, Yu Yifeng would bet that the current gravity was exactly the same as that on Earth!

Felix followed closely behind. As one of the most outstanding physicists of the current era, he had studied this spaceship for many years and was well - versed in its basic information.

"As you can see, this spaceship has its own gravity system." Felix sighed with emotion. "The alien civilization, with technology beyond our imagination, created gravity within the spaceship."

"The intensity of gravity changes with height." He drew a spherical image and gestured with his hands to explain. "At the highest point of the sphere, the gravity is almost zero. The lower you go, the stronger the gravity becomes. At the bottom of the spaceship, the gravity even reaches 20 times that of Earth! We can experience different intensities of gravity on a single spaceship. What a great piece of technology.

And the place where we are standing now, the gravity is exactly equivalent to that on Earth... It's probably around the middle of the sphere."

"The reason we chose this location for the laboratory is precisely this! The gravity that humans are most adapted to is this kind."

Yu Yifeng paced back and forth for a while. This feeling was unmistakable... A gravity environment identical to that on Earth was truly amazing!

"Mr. Felix, what's the volume of this spaceship? How many people can it accommodate?" Yu Yifeng asked.

Felix had a strange expression on his face and smiled. "Captain Yu, the internal space of this spaceship is distorted, much larger than you can imagine! Measured from the outside, it's a sphere with a diameter of 15 kilometers, but the interior is not."

"Measured from the inside, the horizontal diameter is about 200 kilometers, 13 times larger than the outside, and the vertical length is 60 kilometers, 4 times larger. It looks like a sphere from the outside, but inside it's an enlarged ellipsoid!"

"This is - - space - folding technology..."

"Personally, I think there might be an object with a mass of hundreds of millions of tons at the bottom of the spaceship, generating a powerful gravitational force. Coupled with this distorted space, it creates this unique gravity environment. If we had such technology... Sigh..." Felix suddenly sighed, feeling a bit lost. Perhaps the more one knew, the more one understood the ignorance and insignificance of humanity.

The vast universe contained countless truths. Humanity was like a child playing by the sea, occasionally rejoicing at picking up a smoother pebble or a more beautiful seashell, while in front of humanity lay the completely uncharted ocean of truth.

At this time, Biologist Dr. Roman also joined in. "The spaceship is already large enough. If we can really establish a complete ecosystem, with carbon, oxygen, and water cycles, humanity can live in it permanently."

"However, we have to repair this spaceship first. Except for our laboratory, almost all other areas are in a vacuum state. Did these damned aliens not need air?" Roman said.

Yu Yifeng strolled around casually, looking at the laboratory with curiosity. In fact, he was born here and had some vague memories.

There was no doubt that this was the best laboratory in the entire scientific community. All kinds of cutting - edge experimental facilities in electronics, chemistry, biology, physics, etc., could be found here.

The high - gravity, low - gravity, and even zero - gravity environments, which did not exist on Earth, were particularly appealing to a large number of researchers. Over the past 30 years, this place had become the most advanced scientific and technological base.

Yu Yifeng put on a spacesuit and walked out of the laboratory. The outside was a vacuum environment, pitch - black, with no light and no atmosphere. If the inside of the laboratory was a finely decorated house, then the outside was a rough - cast room, empty. The ground was a purple - tinged metal, cold and silent, with a kind of rugged beauty.

This metal - like substance had an extremely high strength and could not be damaged even at temperatures of tens of millions of degrees. However, compared to the spaceship's hull, its technological content was a bit lower. After all, it had friction and belonged to an atomic - level substance.

The interior of the spaceship was somewhat like a honeycomb structure, with regular hexagonal "rooms" on its own. These "rooms" were terrifyingly large, with both length and width exceeding several kilometers. It could be said that one "room" could accommodate a mountain!

People had searched the entire spaceship. Except for finding the perfect - element in the middle room, nothing else was discovered...

This spaceship had no cockpit, no power room, and not even an engine! This had triggered a lot of speculation among humans. How did the spaceship start? Why was there nothing inside? Had the aliens evacuated collectively? What did they look like?

Yu Yifeng even suspected that this was not a spaceship at all but a container, a container for holding the perfect - element... But why was it on the Moon? Why was it so huge? Was there some hidden secret?

These secrets might never be known. Perhaps the previous United Government knew something, but with the explosion of the Earth, all the secrets were buried in history. He only knew that this spaceship was about to become humanity's home...

Some planning was essential. Residential areas, industrial zones, agricultural areas, entertainment venues, laboratories, etc., all needed to be planned in advance. According to the plan, the low - gravity area above and the medium - gravity area in the middle were places where humans could live normally. The high - gravity area at the bottom of the spaceship was not very useful. The fragile human body could not withstand too much gravity.

In short, the specific design would be left to the engineers.

Now, what he had to do was to carry out mobilization work! Mobilize all the dispirited people.