Chapter 31: 7 billion human tombs

Chapter 31: The Tomb of 7 Billion Humankind This is the last time to stay away from the sun, and this time away, there will be no return.
As the distance gets farther and farther, the sun is getting dimmer, and Xiao Yu's mood is a little heavy for no reason.
The road ahead is long and waiting for Xiao Yu will be a long journey of 10.5 light years and a long time of 6,300 years.
什么 样 What strange things will you encounter during the trip? What dangers will you encounter? Xiao Yu didn't know. But Xiao Yu decided to set out. What dominates the thinking of a scientist is the crazy desire to explore, so crazy that even life can be sacrificed.
So Xiao Yu did not choose to continue to develop in the solar system, but chose to set off immediately after gaining interstellar navigation capabilities.
Actually, Xiao Yu's current technology can only be said to have acquired the ability of interplanetary navigation. Because of the speed of nuclear fusion power, the stellar operation of 2,000 years is enough to keep out all creatures with a life span of less than 10,000 years. However, after the combination of Xiao Yu and the computer, he abandoned the physical body and left only his spirit. The life span is almost endless. By relying on this almost cheating method, he gained the ability to use interplanetary navigation technology to start interstellar navigation.
Humans have done calculations and the lowest threshold for interstellar navigation is to reach 5 percent of the speed of light, which is 15,000 kilometers per second. In this case, it will take about two hundred years to reach the Tianyuan Four Galaxy from the solar system. Compared with the life span of humans at that time, this time is already within an acceptable range.
However, before the development of a new generation of engines, the speed of 15,000 kilometers per second was somewhat extravagant for Xiao Yu.
I once again returned from Jupiter to Titan, Xiao Yu did not land. On Titan, two large photon computers have been transplanted to the Sun and the Yuanhang respectively by Xiao Yu. The current base is completely controlled by the computer on the small spacecraft in the beginning.
Although it seems to Xiao Yu today, this computer is really too backward and the calculation speed is too slow, but now on Titan, 99 bases have been stopped and all kinds of machinery have been sealed. Only a few simple maintenance tasks are left to this computer to do, enough.
Titan's atmosphere has extremely low oxygen content and low temperature, so there is no need to worry about mechanical rust and damage. Xiao Yu hopes that these machines and equipment can last for a long time, and they will be intact after tens of thousands of years.
Because a large part of Venus's atmosphere has been stripped, causing the temperature of Venus' surface to drop, in the infinite future, it is likely that intelligent creatures will evolve on Venus. So Xiao Yu hopes that these things left by him can point out a direction of evolution for the intelligent creatures on Venus, and by the way, leave some evidence that humans have existed.
As he watched Titan in the mist in space, Xiao Yu's heart was filled with emotion.
"Twenty years have passed." Xiao Yu thought silently.
In a blink of an eye, twenty years have passed since leaving the earth.
A lot has happened in the past 20 years. On earth, the time of carefree life seems to be just yesterday.
The past events flowed through Xiao Yu's heart.
For the first time away from the earth, facing the fear of the collision of Muyue, the surprise of the first meal, the difficult steps on Titan, the excitement of mastering controllable fusion technology, etc. Piece by piece, piece by piece.
"Let ’s go, let ’s go. In the solar system, although safe and comfortable, but not going through wind and rain, how can there be great achievements. Let ’s go, let ’s go, the boundless universe is the ultimate goal of my exploration.
Xiao Xiaoyu threw thousands of thoughts into his mind, manipulating the huge fleet, and flew towards Saturn.
In the Saturn system, Xiao Yu will make the last fuel replenishment. Then, Xiao Yu will leave the solar system and start a voyage towards Tianyuan IV.
Xiao Yu refueled frantically, and spent half a month in Saturn's atmosphere, and left Saturn until he couldn't hold it.
After a lasting glance at Titan, Xiao Yu resolutely marched forward and ran towards the solar system.
At this time, Xiao Yu had already filled half of the entire fleet with three county-level ships, the Voyage, the Sun, and the Tianyuan, as well as nearly five hundred village-level and township-level ships. Kind of supplies. If it is not necessary to cope with possible accidents and maintain maneuverability for some of the spacecraft, Xiao Yu even plans to load all the spacecraft with materials.
Within this time, Xiao Yu has deeply realized a truth. In cosmic space, the places where meteorites are flying around are not the most dangerous places. The empty places are the most dangerous places. Because there is a distance of at least a thousand years for any star, there is nothing there. In case of an accident, you ca n’t get any supplements. You just have to wait for energy to run out, then die and become cold. The cosmic stones follow the waves in the infinite time.
This is only a galaxy-level voyage, if it is a river-level voyage, it is even more terrible. There, in order to get a piece of scrap iron, you may need to fly at the speed of light for millions of years.
Long time is the greatest enemy of interstellar navigation.
Xiao Yu was full of thoughts, while thinking about things randomly, while manipulating the fleet to accelerate slowly. At the beginning, when leaving the earth, Xiao Yu was extremely eager to leave the solar system, but when he really wanted to leave the solar system, Xiao Yu was reluctant.
Xiao Xiaoyu thought of someone. It was a girl, very young, beautiful, energetic, pure and lovely. When it was still on earth, the girl was a researcher at Xiao Yu's institute.
That girl liked Xiao Yu, but Xiao Yu devoted her whole heart to science, dismissed the relationship between men and women, and even severely criticized the girl because of this incident, which led the girl to leave Xiao Yu's research sadly By.
Xiao Yu never thought that he had done something wrong, but at this time, Xiao Yu had a little regret in her heart.
"She ... is dead now? With seven billion humans, she has entered death. But it seems that since she left the institute and then until the destruction of the earth, I haven't got her for a total of seven years. I do n’t know what happened to her.

Xiao Xiaoyu thought, manipulating a three-dimensional color projector of the Sun, weaving a figure out.
Walking in the cabin of the Sun, a girl gradually appeared as the three-dimensional color projector moved.
"Oh, no, her eyes should be bigger. Uh, okay, the waist is thinner, the bridge of the nose is taller, and the breast is bigger ..."
Xiao Xiaoyu revised various data. Gradually, a three-dimensional color projector projected a figure of a smiling girl in the air.
She stood there just like that, her eyes were tenderly looking forward, and she seemed to have a lot to say.
Xiao Xiaoyu generated a piece of code. After execution, the girl made a sound.
"Director Xiao, how are you doing?"
She sounded very gentle, shy and timid, just like the tone of what she said above the earth.
Xiao Xiaoyu looked at her figure and murmured, "Chen Mo, I'm fine, I'm still alive, how about you?"
"I am dead, I died 20 years ago." The girl said with a slight smile.
"Yeah, you are dead, you died 20 years ago, and I have gained infinite life. But I have no body." Xiao Yu said sadly.
剥离 Separating the body and the mind is a risky behavior. When he was on the earth, Xiao Yu just happened to get an unknown substance from space, and after studying it for years, he took great risks to strip his spirit from his body. Before fully grasping all the characteristics of this material, Xiao Yu never dared to take any more risks.
In other words, even if there is another body, Xiao Yu will not choose to combine with it. Because of the combination, Xiao Yu would not be able to come out. Xiao Yu would be restricted by his body again, and he would die of old age, illness and death.
"Chen Mo, wait for me, wait for me to fully grasp the human genetic code, UU reading www.uukanshu.com I will revive you." Xiao Yu muttered.
When Xiao Yu left the earth, Xiao Yu kept the human gene bank and sperm bank, but when he avoided the collision with Muyue, he was hit by a meteorite and all was lost.
"I'll wait for you." Chen Mo smiled slightly. After saying this, Chen Mo's body turned into a light and shadow and disappeared.
"I will accept your confession when you are resurrected." Xiao Yu whispered, gazing at the light and shadow that Chen Mo's body turned into.
"Hoo ..." captured his mind from the infinite thoughts, Xiao Yu sighed, letting go of these cluttered thoughts, and continued to control the huge fleet to escape towards the solar system.
Gradually, a few months passed by.
Xiao Yu's fleet has reached Uranus orbit.
"It is about to reach Uranus' orbit. Here, leave a tombstone of human civilization." Xiao Yu thought.
The orbit of Uranus is about 2.7 billion kilometers from Earth's orbit. Looking at the sun in Uranus' orbit is just a bright spot in the sky, and you can no longer see the essential difference from the rest of the stars.
Xiao Xiaoyu sighed, using his own metal materials to create a tombstone, and using nuclear fusion technology to create a battery-a battery that can last at least millions of years to supply energy to a long light.
This tombstone will orbit the sun in a 130-year cycle, and for up to a million years, this long light will be on all the time, illuminating a line of characters carved on the tombstone.
"Tomb of seven billion humans!"
"One of the humans, Xiao Yuli!"
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