In the vast universe, a huge fleet is advancing rapidly. Their speed relative to Tianyuan Si has reached 3,000 kilometers per second. However, because there is no obvious reference object here, they seem to be stationary.
moveable.
But by observing red shift and blue shift, Xiao Yu determined that he was really moving and not stationary.
The light of stars in front of Xiao Yu begins to turn blue, while the light of Tianyuan Si behind Xiao Yu becomes a little redder. This is red shift and blue shift, because Xiao Yu is sailing forward quickly and quickly approaching the star in front.
, so the light of the front star will become bluer. On the contrary, because Xiao Yu is moving away from the rear star, the light of the rear star will turn red.
In this vast void, Xiao Yu's fleet is a busy scene. Xiao Yu has created countless robots with basic power structures, shuttling back and forth between large transport ships and large casting ships, transporting large amounts of materials
Transported into the foundry ship, there are more robots busy in the foundry ship. They process these materials through a series of methods such as processing, manufacturing, and assembly to create spaceships one after another, supplementing Xiao Yu's
Among the fleet.
The number of spaceships in Xiao Yu's fleet is increasing every moment.
Seventeen years have passed since the flash of the hydrogen bomb was observed. The total number of spacecraft in Xiao Yu's fleet has grown to 110,000. More than 90 large transport ships have been emptied, and all the materials loaded on them have become
After picking up spaceships one by one, Xiao Yu began to transform the transport ships.
Each of these transport ships can be transformed into three county-level spaceships. Naturally, Xiao Yu cannot waste these materials.
It has been twenty-one years since Xiao Yu left the Tianyuan Four Galaxy. During these twenty-one years, Xiao Yu has sailed a total distance of two trillion kilometers, which is almost one-fifth of a light-year.
"In another three years... in another three years, if the Lucca fleet has not caught up with me, I will be basically safe." Xiao Yu thought silently.
"After arriving in the Tiancang Five star system, it is time to start the research and development of a new fusion engine. The current engine power and fuel utilization are not enough to support my spacecraft to reach a speed of five percent of the speed of light. This means,
I have to develop a more efficient engine."
Although Luca Civilization is a third-level civilization, their speed does not reach 5% of the speed of light. Xiao Yu specifically asked Luca 2 about this, and Luca 2's answer was that they are only a third-level primary civilization.
, and they are the kind that have just entered the third level civilization. They will probably need hundreds of years of development to increase the speed of the spacecraft to five percent of the speed of light.
The peak speed of the third-level civilization can even reach 50% of the speed of light, which is 150,000 kilometers per second. Fifty percent of the speed of light can be regarded as the limit of conventional navigation of a spacecraft. Only some special small
Only spaceships or weapons can exceed this speed.
If you want to break through this limitation, you must find another way.
"Level 4 civilization is undoubtedly a civilization that has mastered a new source of energy, because nuclear fusion energy is definitely not enough to support the huge energy demand for faster-than-light travel. Well... Level 4 civilization is most likely to use the proton-neutron level
This method of obtaining energy through the decay of matter is more than ten times more efficient than nuclear fusion. And... within a thousand years, I am confident that the technology for obtaining energy through this method will be developed! Within a thousand years,
Upgrade to level four civilization!" Xiao Yu thought with confidence.
"Luca 2, today you come and tell me about the structure of civilization in the universe." The work in hand came to an end, Xiao Yu got in the mood and summoned Luca 2.
Luca No. 2 replied respectfully: "Master, I wonder what information you want to know?"
"Well... what are the different types of civilizations in the universe, no, in the Milky Way?"
"Within the Guardian Alliance, civilizations are roughly divided into these types. The first is technological civilization, where intelligent creatures evolve through the development of technology. The second is the civilization of alien beasts, which evolves by developing themselves.
, alien civilizations of level three or above have the ability to sail through the stars with their own bodies. The third type is mechanical civilization, which is developed by the intelligent computers left behind after the demise of technological civilization. Mechanical civilization generally has an extremely large number of warships.
, wandering in the universe like locusts, but they generally have no ability to evolve. Ah, of course this is not talking about you, please don’t get me wrong." Luca 2 said, suddenly feeling a little frightened.
"It's okay, just keep talking." Xiao Yu said a little funny.
"The main types are these three, but there are some special existences in the galaxy. They are not civilizations, but they have certain characteristics of living things. For example, the nightmare of all civilizations, the ghost race..."
"Ghost clan?" This was the second time Xiao Yu heard this term, and he couldn't help but be very interested.
"Yes, the ghost tribe. The ghost tribe is a special kind of existence. They have no entity, just an existence similar to radio waves. They are bloodthirsty and powerful. They can evolve by devouring the souls of intelligent creatures. Evolve to high-level ghosts
The ghost tribe is extremely terrifying. In the past 70 million years, the total number of recorded civilizations that have been wiped out by the ghost tribe has reached more than 3,000, and there is even a fifth-level civilization among them."
"Ghost tribe?! Why are they so similar to wood spirits?" After hearing Luca No. 2's explanation, Xiao Yu suddenly thought of the wood spirits imprisoned by him.
Even now, there are still some wood spirits on Xiao Yu's spaceship. However, since Xiao Yu obtained more advanced material casting technology, Xiao Yu has given up the practice of using wood spirits to strengthen materials. Those wood spirits
Xiao Yu also put him in the storage room and didn't bother him for a long time.
"The ghost tribe is the common enemy of technological civilization and alien beast civilization. Because mechanical civilization has no soul, the ghost tribe is dismissive of them. Every time traces of the ghost tribe are discovered, it will trigger large-scale encirclement and suppression actions throughout the galaxy.
, 30 million years ago, facing an extremely powerful ghost race, the sweeper and guardian civilizations even had a precedent of joining forces to fight. In this way, these two civilizations almost suffered a defeat, and finally the sweeper civilization took action.
The neutron battle star wiped out that ghost clan." Luca 2 explained in detail.
Xiao Yu thought silently.
"I wonder if the Wood Spirit is a ghost tribe... If it is really a ghost tribe, it would be great fun. I actually imprisoned such a powerful thing? I can't let the people of Luca know about this matter. I will research it myself slowly.
"Xiao Yu made up his mind, and at the same time, he raised another question.
"How did the ghost tribe come into being?"
Luca 2 shook his head: "I don't know. But there is a certain pattern in the appearance of ghosts. The place where they are first discovered is always in a place where civilization exists but is exterminated. The latest research shows that ghosts
The formation of the tribe may be related to the extinct civilization. About one thousand extinct civilizations, a ghost tribe will appear once. For example, the ghost tribe discovered this time was discovered around a yellow dwarf star.
That third planet from the yellow dwarf once had a technological civilization."
Xiao Yu's heart skipped a beat and he immediately asked: "Yellow dwarf star? Give me the specific parameters of this yellow dwarf star."
Luka No. 2 did not dare to neglect and immediately sent a piece of information to Xiao Yu.
Xiao Yu saw that this yellow dwarf star is located in the third cantilever of the Milky Way. It has a diameter of 1.39 million kilometers and a mass of 2X10^30 kilograms. The star spectrum is classified as a G-type main sequence star with an absolute magnitude of 4.83.
, with a surface temperature of 5778K, and eight large planets. The third planet once had a second-level intermediate civilization, but this civilization has been extinct...
"This is the sun, the sun that nurtures me." Xiao Yu thought silently.
Xiao Yu controlled the robot and took out the box where the wood spirit was stored. Xiao Yu watched it silently through the camera.
"Could it be that... you are all the souls that refuse to rest after the death of my people? On Jupiter, I once destroyed so many wood spirits... I'm sorry, I really don't know."
At this moment, Xiao Yu's heart was full of mixed feelings, and he didn't know what it felt like.
Xiao Yu managed to calm down and put this matter behind his mind for the time being, but continued to ask: "Besides the ghost race, what other existences are there in the galaxy?"
Luca 2 replied respectfully: "There are still some unknown and terrifying existences. I have heard that hundreds of thousands of years ago, a powerful fleet of 100,000 spacecraft of the Guardian Civilization once launched in the
A certain star suddenly disappeared around a cantilever. The Guardian Civilization sent a follow-up exploration fleet, but they also disappeared. I don’t know the subsequent development. I only know that the Guardian Civilization sent the star’s
The sphere of influence is divided into extremely dangerous areas with a danger level of five. In the galaxy, there are hundreds of dangerous areas with level four and above. Unknown and powerful creatures may exist in these areas.
.”
"Where is the nearest dangerous area to me?" Xiao Yu asked.
"Well... it is an open star cluster. In your civilization system, it is called the Pleiades star cluster. It is about 450 light years away from you. The danger level is level four, severe danger. There once was a level five civilization.
When the fleet passed there, all the creatures in the fleet died due to unknown reasons, but the spacecraft was not damaged at all. We still don’t know the reason." Luca 2 replied.
"It's really dangerous in the universe." Xiao Yu sighed, "I want to continue to be strong, avenge human civilization, and let my people rest in peace..."
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