Xiao Yu's thirst for powerful force has reached the point of almost madness. Not to mention the hatred of exterminating the clan for the time being, just talking about the pressure of his own survival has been pressing on Xiao Yu's heart all the time, almost making Xiao Yu breathless.

Xiao Yu didn't forget that the Aquila Nebula was a second-level medium danger area, and a fleet of fourth-level civilizations had been destroyed, and Xiao Yu didn't think that he would be able to fight it.

Xiao Yu once consulted Luca 2 and asked him if there was a danger zone where the cause had been discovered.

Xiao Yu was really curious about this question, because Xiao Yu really couldn't figure out what kind of existence could make such a powerful civilization as the Guardian and the Sweeper jealous.

Luca II replied, "Yes." Five ,270,000 years ago, a Level 3 High Danger Zone was discovered by the Guardian Civilization, and after that exploration activity, the Guardian Civilization announced that the danger sign had been lifted. But what exactly the Guardian civilization discovered from there, no one knows except the Guardian civilization. ”

Xiao Yu scolded secretly: "If you say it, you don't say it, except for arousing my curiosity, it's useless." ”

"But......," Lukka II continued, "there has been a rumor circulating within the Alliance that the ultimate war bastion of the Sweeper civilization, the Neutron Warstar's manufacturing technology, was obtained from a dangerous area. It is rumored to be a Level 5 Extremely Dangerous Area located in the Heart of Silver, and the Sweeper Civilization has discovered this dangerous area and obtained the manufacturing technology of the Neutron Warstar from it. ”

"Oh? Explore dangerous areas and get advanced technology? Xiao Yu suddenly came to his senses, and secretly thought in his heart: "It's not good, in this second-level danger area, there will be something that can quickly improve my technological level." ”

"This idea is a bit unrealistic, let's do our own thing first." Xiao Yu sighed, commanded the village-level spaceships, and transported the machinery to the No. 1 satellite.

Xiao Yu first carried out the construction of the scientific research base. At the same time as the construction of the scientific research base, Xiao Yu also sent a huge robot force to explore the entire Aquila A planetary system, and had a general understanding of the distribution of minerals in it.

The construction of infrastructure took Xiao Yu a year. Within this year, Xiao Yu built more than 1,000 mining bases within the entire Skyhawk A planetary system with extremely high efficiency, and these 1,000 mining bases were distributed on different satellites, and between the satellites, they relied on village-level spaceships as transportation vehicles.

The nine satellites that have reached hydrostatic equilibrium have become Xiao Yu's main construction base. In the early stage, Xiao Yu planned to build a large particle collider around the Sky Aquila 1 first.

It is an indispensable tool for fundamental physics research. During this period of time, Xiao Yu's technology has improved again, so the construction speed will be greatly increased this time, and the materials used will be reduced by more than 99%.

The specific plan is to build 600,000 independent large acceleration rings on the orbit around the Sky Eagle, each acceleration circle is about 1,000 kilometers apart, and the acceleration circle is no longer linked by physical materials, but uses protective cover technology to ensure the purity of the accelerator.

This saves a lot of material as well as time. With Xiao Yu's current construction speed, Xiao Yu can build it within two years.

After the infrastructure was completed, Xiao Yu immediately began the construction of the particle collider. Tens of thousands of spaceships are busy navigating the Aquila A system, and a large particle collider around the Aquila is growing at a perceptible rate.

At the same time, Xiao Yu also conducted a lot of scientific research in the main base. Eventually, half a year later, the first improved village-level ship was built.

This village-level spacecraft applies the latest power system, the latest defense system, and the latest weapon system. Today is the day of the first test flight of this spacecraft.

In the space dock, Xiao Yu sat in the Beijing, quietly watching the small spaceship.

"The maximum tolerable acceleration is three kilometers per second, under which the engine can run continuously for half an hour, accelerating it to a speed of 5,100 kilometers per second, and consuming 20 percent of the fuel it can carry. For the sake of subsequent deceleration, as well as maneuverability, this ratio could not be higher. Xiao Yu thought silently and gave the order to launch.

As soon as the order to launch was given, the tail of the small spaceship, the specially modified engine sprayed a strong air current, pushing it out of the dock in an instant.

It was accelerating at an astonishing rate, thirty seconds later, it was 90 kilometers per second, ten minutes later, it was 1,800 kilometers per second, 1,000 seconds later, 3,003 kilometers per second, and counting.

And then...... The ship exploded.

Xiao Yu arranged the haode ultra-distance communication satellite in advance and transmitted this picture to Xiao Yu. Xiao Yu saw that when the speed accelerated to 3,100 kilometers per second, the shell of this village-level spaceship was deformed, the engine overheated, and the deformation of the shell pressed the engine, and immediately, the spaceship exploded.

"Mommy." Xiao Yu secretly scolded, "Material technology is still not up to par, and the fuel ratio of 20 percent is too high." It is important to continue to improve the strength of the material, as well as to improve the efficiency of the engine. ”

Gravitational acceleration and gravitational force have the same effect. In other words, on top of a spaceship accelerating at a speed of 9.8 meters per second, a person will feel gravity that is no different from that of Earth.

The acceleration of this spacecraft is three kilometers per second. The effect of this acceleration is roughly equal to the effect of 300 times the Earth's gravity. Under such a huge gravity, the materials that make up this village-level spaceship were deformed by pressure.

The energy shield can only defend against external attacks, and is powerless against gravity.

This means that Xiao Yu has to further enhance the strength of the material in order to adapt to greater gravity and make the spacecraft maneuver better.

In addition, Xiao Yu also needs to continue to enhance the energy conversion efficiency of the spacecraft's engines. Assuming that nuclear fusion can release 100 parts of energy, the energy that can be used for useful purposes is only about 20 parts, and as many as 80 parts of energy are wasted. What Xiao Yu has to do is to reduce energy loss and squeeze the most energy from the least amount of fuel.

Materials technology, and energy conversion are the two major obstacles to Xiao Yu's further improvement of the spacecraft's speed and maneuverability.

In order to solve these two problems, Xiao Yu continued to focus on the scientific research institute, in which various shiyans were carried out.

Just when Xiao Yu was struggling to improve the performance of his spaceship, Xiao Yu observed a strange phenomenon.

In the sky, a bright star suddenly appeared. The bright star, which was previously invisible in the visible light band, has suddenly skyrocketed to an apparent magnitude of -5.7 degrees. Brighter than looking at Venus from Earth.

This means that its luminosity, at this moment, has increased by tens of thousands of times.

Looking at this bright star that suddenly appeared, Xiao Yu fell into fear.

There's nothing wrong with that, it's fear. Because of this star, Xiao Yu is very familiar.

That's Tianyuan Four.

By its side, Xiao Yu spent hundreds of years, where Xiao Yu defeated the water droplets, defeated the first fleet of the Lucca civilization, obtained the protective shield technology, and initially stepped into the third-level civilization.

In Xiao Yu's mind, in addition to the sun, the most important thing is Tianyuan Four.

"Tianyuan four, there is a supernova explosion. Tianyuan Four, dead. Xiao Yu muttered to himself, turning the scene to Luca Two.

Luca II was similarly in shock.

"The mass of Tianyuan IV is not high enough for a supernova explosion. Then, its current abnormal state can only be caused by someone on purpose. Don't...... Is the fleet of the Guardian civilization finally here? ”

Xiao Yu thought silently.

The mass of Tianyuan IV is smaller than that of the Sun, and in 10 billion years, Tianyuan IV will become a red giant star, and the core will collapse into a white dwarf, ending its life in a relatively gentle way. But now, the energy radiation that could have lasted for 10 billion years has all exploded at this moment.

Tianyuan 4 was detonated.

"The light of Tianyuan 4 travels at the speed of light, and I am here more than 6,000 light-years away from Tianyuan 4, that is to say, more than 6,000 years ago, Tianyuan 4 has been detonated. One day of my voyage under the Ghost Clan, more than 6,100 years have passed in the outside world...... In this way, thirty years after I met the Ghost Clan, Tianyuan IV was detonated, and its light has not been transmitted to me until now. ”

Xiao Yu felt a little bitter in his heart.

Is that...... A star! A young star with a life span of 10 billion years! Now, that's it. It burst out in this moment with all the energy it could radiate in the next ten billion years, ending its life in a heroic way.

"Tianyuan Si, I hurt you." Xiao Yu thought silently, and a strong hatred came out of his heart.

That's hatred for the Guardian Alliance.

"If it weren't for my people who brought me here, I would have been captured by the Guardian Alliance. Don't...... If you can't find a trace of me and my people, will you destroy a star to vent your anger? ”

The light of Tianyuan IV, after lasting for two days, gradually dimmed, and finally disappeared, completely missing from the universe.

After that, no matter how advanced Xiao Yu used observation methods to find Tianyuan IV, he couldn't find it. In the position of the original Tianyuan Four, only a large cluster of planetary nebulae that continued to spread was left, like the corpse of Tianyuan Four.

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