This is the last time to leave the sun, and there will be no return this time.
As the distance got farther and farther, the sun became dimmer and dimmer, and Xiao Yu's mood became a little heavy for no reason.
The road ahead is long, and what awaits Xiao Yu will be a long journey of ten point five light years, and a long time of six thousand three hundred years.
What kind of strange things will you encounter during the journey? What kind of dangers will you encounter? Xiao Yu doesn’t know. But Xiao Yu still decides to set off. What dominates a scientist’s thinking is a crazy desire to explore, so crazy that even
Life can be sacrificed.
Therefore, Xiao Yu did not choose to continue developing in the solar system, but chose to set off immediately after gaining the ability to navigate interstellar space.
In fact, to be precise, Xiao Yu's current technology can only be said to have acquired the ability to travel between planets. Because at the speed of nuclear fusion power, interstellar navigation can take thousands of years, which is enough to reject all living things with a life span of less than 10,000 years.
It's out of the door. However, after Xiao Yu combined with the computer, he abandoned his physical body and left only his spirit. His lifespan is almost endless. Relying on this almost cheating method, he obtained the technology of interplanetary navigation to carry out interstellar navigation.
Ability.
Humanity has made calculations and found that the lowest threshold for interstellar navigation is to reach 5% of the speed of light, which is a speed of 15,000 kilometers per second. In this case, it will take about two days to reach the Tianyuan Four Galaxy from the solar system.
A hundred years, compared to the human lifespan at that time, this time was already within an acceptable range.
However, until a new generation of engines is developed, the speed of 15,000 kilometers per second is a bit of a luxury for Xiao Yu.
Once again returning to Titan from Jupiter, Xiao Yu did not land. On Titan, two large-scale photon computers have been transplanted by Xiao Yu to the Sun and Yuanhang respectively. The current base is completely composed of the original one.
The computer on the small spaceship will control it.
Although it seems to Xiao Yu now that this computer is too backward and the computing speed is too slow, now all ninety-nine bases on Titan have stopped operating and all kinds of machinery have been sealed
, there are only some simple maintenance tasks left, which are enough to be done by this computer.
Titan's atmosphere has extremely low oxygen content and low temperature, so there is no need to worry about machinery rusting and damage. Xiao Yu hopes that these machinery and equipment can exist for a long time. After tens of millions of years, they will
Still intact.
Because a large part of the atmosphere of Venus has been stripped away, resulting in a decrease in the surface temperature of Venus, intelligent creatures are likely to evolve on Venus in the infinite future. Therefore, Xiao Yu hopes that the things he left behind can contribute to the development of Venus on Venus.
Intelligent creatures point out the direction of evolution, and by the way, they also leave some evidence that humans once existed in the solar system.
Looking at Titan shrouded in fog from space, Xiao Yu felt filled with emotions.
"Twenty years have passed like this." Xiao Yu thought silently in his heart.
In the blink of an eye, twenty years have passed since I left the earth.
In the past twenty years, a lot of things have happened. The time when we were living carefree on earth seems like just yesterday.
Scenes of past events flowed through Xiao Yu's mind.
The first time I was far away from the earth, the fear when facing the collision between Jupiter and the moon, the surprise when I had a big meal for the first time, the difficulties on Titan, the excitement when mastering the controllable nuclear fusion technology, etc., etc.,
One pile, one piece.
"Let's go, let's go. Although it is safe and comfortable in the solar system, how can we achieve great achievements without experiencing wind and rain? Let's go, let's go. The boundless universe is the ultimate goal of my exploration."
Xiao Yu threw away thousands of thoughts from his mind, controlled the huge fleet, and flew towards Saturn.
In the Saturn system, Xiao Yu will replenish fuel for the last time. Then, Xiao Yu will leave the solar system and embark on a long voyage towards Tianyuan IV.
Xiao Yu frantically replenished fuel and stayed in the atmosphere of Saturn for half a month. He did not leave Saturn until he couldn't hold it anymore.
After taking one last reluctant look at Titan, Xiao Yu moved forward resolutely, heading towards the outer reaches of the solar system.
At this time, Xiao Yu had already filled half of the entire fleet's spaceships, including three county-level spaceships, the Yuanhang, the Sun, and the Tianyuan, as well as nearly five hundred village-level and township-level spaceships.
Xiao Yu even planned to load all the spacecraft with supplies, if it were not for the necessity to maintain mobility for part of the spacecraft in order to cope with possible unexpected situations.
During this period of time, Xiao Yu has deeply realized a truth. In the universe, the place where meteorites are flying is not the most dangerous place, but the empty place is the most dangerous place. Because there, any place is the most dangerous place.
The distance between stars is at least a thousand years of voyage. There is nothing there. If an unexpected situation occurs, you cannot get any supplies. You can only wait for the energy to run out, then die and turn into a cold cosmic stone.
Drifting with the tide in infinite time.
This is just a galaxy-level voyage. If it is a river-level voyage, it will be even more terrifying. There, in order to get a piece of scrap metal, you may need to fly at the speed of light for millions of years.
Long time is the biggest enemy of interstellar navigation.
Xiao Yu had a lot of thoughts, and while he was thinking about things randomly, he controlled the fleet to slowly accelerate. At first, when he left the earth, Xiao Yu was extremely eager to leave the solar system, but when he really wanted to leave the solar system, Xiao Yu's heart
Instead, he was reluctant to leave.
Xiao Yu thought of a person. She was a girl, very young, beautiful, energetic, pure and lovely. Back when she was still on earth, this girl was a researcher at the research institute under Xiao Yu.
The girl liked Xiao Yu, but Xiao Yu focused solely on science and was dismissive of the relationship between men and women. He even severely criticized the girl because of this incident, which caused the girl to leave Xiao Yu's research sadly.
Place.
Xiao Yu never thought that he had done anything wrong, but at this moment, Xiao Yu felt a little regret in his heart.
"Is she...dead now? Along with seven billion humans, she has entered death. But it seems that since she left the institute and until the destruction of the earth, I haven't gotten her for a total of seven years.
I don’t know any information about her, and I don’t know what happened to her afterwards.”
Xiao Yu thought, and controlled the three-dimensional color projector of the Sun to weave a figure out.
In the cabin of the Sun, as the three-dimensional color projector moved, a girl's figure gradually appeared.
"Well, no, her eyes should be a little bigger. Uh, okay, the waist should be a little thinner, the bridge of the nose should be a little straighter, and the breasts should be a little bigger..."
Xiao Yu modified various data, and gradually, the three-dimensional color projector projected the figure of a smiling girl in the air.
She just stood there, looking forward with tender eyes, as if she had a lot to say.
Xiao Yu generated a piece of code, and after executing it, the girl made a sound.
"Director Xiao, are you okay?"
Her voice was very gentle and shy, exactly the same as the tone of her words on earth.
Xiao Yu looked at her figure blankly and murmured: "Chen Mo, I'm fine, I'm still alive, how about you?"
"I'm already dead. I died twenty years ago." The girl said with a smile.
"Yes, you are dead. You died twenty years ago, and I have gained infinite life. But I no longer have a body." Xiao Yu said sadly.
It is a very risky behavior to separate the body and spirit. While on the earth, Xiao Yu happened to get an unknown substance from the universe. After studying it for several years, he took great risks and took his own
The spirit was separated from the body. Xiao Yu would never dare to take risks again until he fully mastered all the properties of this substance.
In other words, even if there is another body, Xiao Yu will not choose to combine with it. Because if combined, Xiao Yu will not be able to get out. Xiao Yu will be restricted by the body again and will suffer from old age, illness and death.
"Chen Mo, wait for me. When I completely master the human genetic code, I will resurrect you." Xiao Yu murmured.
When Xiao Yu left the earth, he had stored up the human gene bank and sperm bank, but while avoiding the collision between the moon and the moon, he was hit by a meteorite and lost them all.
"I'll wait for you." Chen Mo smiled slightly. After saying this, Chen Mo's body turned into a piece of light and shadow and disappeared.
"When you are resurrected, I will accept your confession." Xiao Yu whispered, staring blankly at the light and shadow that Chen Mo's body turned into.
"Huh..." After retracting his mind from the infinite thoughts, Xiao Yu sighed softly, put aside these messy thoughts, and continued to control the huge fleet to escape outside the solar system.
Gradually, several months flew by.
Xiao Yu's fleet has reached the orbit of Uranus.
"We are almost reaching the orbit of Uranus. Let's leave a tombstone of human civilization here." Xiao Yu thought.
The orbit of Uranus is about 2.7 billion kilometers away from the orbit of the earth. When you look at the sun from the orbit of Uranus, it is just a bright spot in the sky, and you can no longer see the essential difference from other stars.
Xiao Yu sighed and used the metal materials he had stored to build a tombstone. He also used nuclear fusion technology to create a battery—a battery that could last at least millions of years to supply energy to an ever-burning lamp.
This tombstone will revolve around the sun in a cycle of 130 years, and for up to one million years, this ever-burning lamp will always be on, illuminating a line of words engraved on the tombstone.