A Test From the Earth!

"Sister Xia, we've prepared the second batch of resources on our end. We have 20 spacecraft in total. Please make sure to inspect them."

"Alright, I got it. I'll report to the supervisor soon."

Ever since their first trade meeting between Colonel Chu and Ba Jie, all further communications between Earth and the Moon were conducted by Liu Ning and Zhang Yi Xia.

Both of them grew accustomed to this interaction style, maintaining their previous way of communicating without breaking the existing boundaries

After establishing contact with the Moon, Liu Ning's job changed. Besides filming some materials for the TV station, she spent most of her days visiting various tourist spots, letting Zhang Yi Xia experience Earth's beauty.

Following some small talk, the call ended, and Zhang Yi Xia headed to the command center to report the situation to Zhao Yu.

"Commander, the second batch of resources from Earth has taken off and is on its way," Zhang Yi Xia announced.

In the command center, Zhao Yu was listening to Uncle Da as he introduced the gravitational lens and the disk-shaped spaceship.

Upon hearing this, Zhao Yu casually responded. Seeing the holographic spaceship Zhang Yi Xia's eyes lit up, and she slowly walked to the door. When she noticed no one was asking her to leave, she stopped and stayed where she was.

Uncle Da continued, "The gravitational lens currently has three modes."

"The first is close-range detection of gravitational waves. With our gravitational lens as the center, it radiates outwards, and any independent celestial bodies weighing over 100 grams within a diameter of 10 million kilometers can be detected."

"The second mode is medium-range detection of gravitational waves, requiring auxiliary equipment to be launched. I suggest launching 125,010 receivers to cover the entire solar system. This way, we can clearly discover every independent celestial body, similar to the first mode."

"The third mode is ultra-long-range reception of gravitational waves, capable of probing the depths of the universe. However, as the distance increases, the minimum mass of detectable celestial bodies will also increase. While all stars in the Milky Way can be detected, slightly smaller planets may be missed."

After listening for a while, Zhao Yu gained a better understanding of gravitational lenses.

This device was indeed very useful, able to discover objects through gravitational curvature and simulate their shapes.

However, it had a drawback: large objects could conceal the gravitational waves of smaller ones, making them difficult to detect.

For example, while detecting a planet's shape, mass, velocity, and orbit, it couldn't explore the planet's interior.

Similarly, if a device was hidden within a meteorite, the gravitational lens couldn't detect it.

Of course, the advantages were also clear: all independent celestial bodies with mass would be exposed.

Particularly in close-range detection mode, even small meteorites weighing around 100 grams, possibly just the size of an egg in space, could still be detected by the gravitational lens.

"Sounds good. Let's follow your plan and cover the entire solar system. That way, if any aliens arrive, at least we'll know they're here,"

After Zhao Yu finished speaking, he rubbed his hands eagerly and looked at the spaceship. This was a spaceship for outer space exploration!

In the past five years, although there were spacecraft capable of sending the star destroyer cannon to outer space, Zhao Yu had never left the base for safety reasons.

With this spaceship, he could finally venture beyond.

"The first spaceship we constructed was a basic model designed for data recording, so I didn't have you install any additional weapon systems," Uncle Da explained.

He continued to describe the spaceship's features, "The spaceship employs magnetic flight and has a circular shape with a diameter of 108 meters."

"Only one-third of the spaceship's space is available for movement, and weapons will be installed in these areas. The remaining two-thirds are occupied by the magnetic framework, which cannot be tampered with."

"The spaceship has numerous functions, including an optical invisibility system that can refract light signals, rendering it physically invisible."

This type of system could make the spaceship undetectable even if it appeared right in front of someone.

"The plasma invisibility system reflects incoming electromagnetic waves along a predetermined path, making the vehicle invisible on radar."

"The magnetic tweezer system creates a ring-shaped magnetic field beneath the spaceship. Within this magnetic field, passengers can defy gravity and move freely in any direction."

In the 3D model, the spaceship hovered ten centimeters above the ground. Its bottom opened, emitting a faint white light ring downward. 

On the ground, a small virtual figure stood in place. Illuminated by the white light ring, the figure swiftly ascended into the spaceship's interior.

Zhao Yu's eyes sparkled, and he grinned, "This technology is impressive and intriguing!"

Uncle Da nodded and proceeded to discuss the remaining functions. They mainly consisted of conventional technologies like communication systems, radar systems, life support systems, balance systems, and more

Technologically speaking, the spaceship was far more advanced than anything on Earth, capable of arriving and departing in silence without anyone noticing.

The most satisfying aspect for Zhao Yu was that the disk-shaped spaceship speed was extremely fast, using magnetic power and could reach a maximum speed of 100 mach in a very short time. The fastest missile on Earth could only reach 20 mach.

This meant that even if there were no weapon systems installed on the spaceship, there would be no danger. 

 Of course, Zhao Yu did not plan to go to Earth before the U-shaped spaceship was built.

It was better to be safe than sorry. When the time came, even if he had to go to Earth, he would definitely bring along the entire escort fleet to deal with all possible crises.

"Commander, now that the spaceship is built, why don't I help you test fly it?" Zhang Yu Xia, who was beside them, spoke up.

"You, are you thinking of going to Earth?!"

Zhang Yi Xia scratched her head. Zhao Yu shook his head, realizing he did need someone to test drive the spaceship.

 Zhao Yu nodded and said, "We'll keep the first spaceship for Uncle Da records. When the second one is ready, you can take it to Earth. Just make sure to keep it invisible the whole time so it doesn't get spotted."

"Yay!"

..

Three days later.

"Chi chi ~~!"

On the surface of the moon, 20 rockets from Earth landed one after another.

This was the second trade between Earth and Moon.

At the underground entrance, Xiao Tian and his team were already on standby, ready to go out and receive resources at any time.

Earth's spacecraft were outdated, with a conical shield resembling a parachute on the head and flames continuously spraying out from the bottom of the rocket to slow down the spacecraft's descent.

Most of the rockets landed smoothly towards the designated location, but one of the rockets experienced a malfunction when it was still several thousand meters away from the ground. One of the bottom thrusters suddenly extinguished.

The whole rocket instantly lost balance, and the body began to tilt.

"Chi chi ~!" "Chi chi ~~!"

The plane twisted a few times in the air, but it could not stabilize itself. The trajectory of the landing also changed, and it started to fall towards the craters where Xiaotian was hiding.

This was the only entrance to the moon base that was exposed to Earth. Although it was far from the core of the base, it was still part of the base.

Just as the rocket was about to hit the ground, a light screen suddenly rose from the ground.