In the current human civilization, no matter whether they are still alive or dead, everyone, everyone, except Zhao Changxing, no one has ever been to the earth.
Over the course of thousands of years, everything about the earth has appeared over and over again in various literary and artistic works. People can tell without thinking about the amazing achievements created by the predecessors living on the earth despite extremely backward technology. They know about the Great Wall, the Mausoleum of Qin Shihuang, the Grand Canal, and the Pyramids. Wait for everything.
Most of the various film and television dramas take place on Earth. Through advanced CG technology, people have simulated all the scenery on the earth. Blue sky, sea, icebergs, snowfields, grasslands, lakes, rivers...
Everyone clearly knows that they come from the earth. Human blood flows in his body. Even people from Deep Space or Moyun Litar clearly know where their cultural heritage comes from.
In the midst of thoughts that were too complex to be described in words, in the vast space, Zhao Changxing and others rode the space carrier, hundreds of kilometers away from the earth, rotating around the earth at a speed of several hours. This allowed them to see almost the entire planet.
The earth at this moment is different from the earth described in any film and television works with abundant materials and flourishing of all things.
At this moment, it is earthy yellow. It's not just one place that's khaki, but... the whole world.
The whole earth, almost everywhere, is khaki. Like Mars.
No matter where it was before, it was a large lake or a grassland, whether it was a vast ocean or a dense jungle, at this moment, it was all earthy yellow.
The ocean has disappeared from the earth. The intense solar radiation evaporated all water on the surface, causing it to escape into the atmosphere. Too strong solar wind "blows" them directly into space.
The four oceans became four basins. There is not enough water to fill them up at this point.
Even at this moment, the concentration of the earth's atmosphere has dropped to less than one-tenth of what it was a thousand years ago.
Even invisible to the naked eye, in the direction of the earth facing away from the sun, something like the tail of a comet has appeared.
All this is because of that black hole.
"Let's go."
A landing spacecraft and a space shuttle ship, carrying the ashes of the people who had passed away, as well as Zhao Changxing and others, passed through the atmosphere and landed on the surface of the earth.
According to the longitude and latitude, the place where we landed at this moment should have been the administrative, economic, and cultural center of the entire earth nearly a thousand years ago.
This was once a super metropolis that was so prosperous that no film or television work could show it. There used to be many high-rise buildings and elevated highways here. This place used to be bustling with traffic and people.
But now, all Zhao Changxing and the civilization leaders see is only a piece of yellow sand, and some broken walls occasionally exposed on the surface under the wind and sand.
There are even some... bones that occasionally appear on the surface.
Zhao Changxing, wearing a spacesuit, stepped on the yellow sand that was hundreds of degrees Celsius - the average temperature on the earth's surface at this moment was as high as 106 degrees Celsius, and walked to the section of bones.
After cleaning up the yellow sand a little, he could clearly see the entire skeleton.
It should have been a dog when it was alive.
In this most prosperous place in the world, perhaps it also had an owner who loved and cared for it at that time. But human civilization has become a thing of the past on this planet. Without shelter, its fate has been doomed.
"Just here."
Zhao Changxing's expression was calm, with no trace of sadness or joy. He ordered in a still calm tone.
As a result, the cargo spacecraft that followed took off again until it reached an altitude of one thousand meters. After that, its cargo door was opened, and under the operation of automatic equipment, one urn after another was opened, and the ashes contained inside were still violent even though the atmospheric concentration dropped to about one-tenth of the previous time. It was blown away by the hot wind.
Zhao Changxing clearly saw the gray-black dust pouring out of the cabin and then floating to an unknown distance.
In this way, they stayed forever on this planet that gave birth to human civilization. and, avoiding the possibility of their remains being desecrated by any enemy.
They will sleep forever on this planet, together with the tens of billions of people from the old human civilization who once lived here but have all died now.
Zhao Changxing stayed on the earth for several hours. Most of the time, he stood quietly, or found a place to sit quietly. He seemed to be looking into the distance, but he didn't seem to be looking at anything, just thinking quietly.
No one knows what he saw or what he thought.
After that, he stood up, his voice still calm: "Let's go."
The group of people took the space shuttle again and returned to the space carrier. After that, the space carrier immediately began to accelerate.
Unlike the Yuanhang spacecraft, the acceleration of this space carrier was so rapid that Zhao Changxing could even feel obvious overload pressure.
After only two weeks of orbiting the Earth, it gained enough speed to escape the Earth's gravitational field. So it galloped away in the direction of the sun.
Zhao Changxing stood in front of the porthole, still looking steadily in the direction of the earth. He watched for a long, long time, until the earth became a bright spot and no detailed features could be seen anymore.
He knew that once he left, he wouldn't know when he would come back.
What's more likely is that he will never be able to come back.
After leaving the earth, the space carrier successively crossed the orbits of Venus and Mercury. After that, it gradually got closer to the sun.
The strong gravity from the sun gives the space carrier extremely high acceleration, allowing it to increase its speed a lot without spending too much fuel.
The Yuan Voyage spacecraft, which has already passed by the sun, also used the power of the sun.
This is essentially stealing the sun's kinetic energy and turning it into its own kinetic energy. But the sun is too big. Such a small amount of energy lost cannot even be observed at all.
It's like a virus landed on an aircraft carrier.
At the place closest to the sun, through multiple light-filtering observation equipment, Zhao Changxing saw with his own eyes the appearance of the culprit that had destroyed human civilization and would also destroy the entire solar system.
It is not appropriate to say that I saw it with my own eyes. Because the black hole is too small. Even though its mass is now as high as fifteen times the mass of the Earth, its radius is still less than 10 centimeters.
At such a long distance, especially with the interference of the sun, it is impossible to see it with your own eyes, even with powerful observation equipment.
What Zhao Changxing saw was the impact it had.
It is just a small celestial body with a radius of less than 10 centimeters, but it has created an accretion disk with a diameter of tens of thousands of kilometers, and caused the material in the accretion disk to rotate crazily around itself.
During this violent rotation, part of the material acquired high enough energy and was ejected directly from the poles of the black hole, forming a high-energy jet. When the other part of the matter accelerated to its fastest speed, it fell into the black hole and turned into the mass of the black hole.
During this process, most of their physical quantities were lost, leaving only three physical quantities: mass, charge, and angular momentum.
This is the so-called black hole hairless theorem.
Outside the accretion disk, the gas in the solar atmosphere is continuously attracted by the black hole's gravity. Because in this place, the gravitational pull of the black hole is greater than the gravitational pull of the sun.
The sun continues to lose its mass in this way. At the same time, the loss of the sun's mass has in turn affected its own stability. This results in the continuous explosion of extremely high-intensity coronal mass ejections, flares, etc., forming an extremely violent solar wind that sweeps across the entire solar system.
It is precisely because of this process that all water sources on the earth have been completely evaporated, and even the atmospheric concentration has been reduced to less than one-tenth of its original value, and it is still decreasing.
Facing this black hole that threatens to annihilate the entire solar system, people's thoughts are extremely complicated.
Speaking of hate, of course. After all, it is what caused all these disasters. However, people clearly know that it is just a natural celestial body.
It is lifeless and has no will of its own. All these behaviors are not its active behaviors.
Perhaps the gravitational battle between some extremely distant stars finally allowed it to obtain a forward trajectory to the solar system, which ultimately caused this result.
In this respect, too, it is innocent.
Zhao Changxing looked at it for a long time, but in the end he could only sigh.
If you want to hate it, just hate yourself for not being strong enough.
If human civilization is strong enough, it might be possible to prevent all of this from happening. In fact, he is no longer afraid of the threat of the Moyun Litar civilization, so why is he leaving his hometown and fleeing to other star systems at this moment?
At this moment, the acceleration with the help of the sun has been completed. The space carrier is moving away from the sun at an extremely high speed, chasing the Yuan Voyage spacecraft.
Looking at the still bright sun, Zhao Changxing made a vow in his heart.
“I will definitely lead human civilization to continue to be strong, until all disasters, whether natural or man-made, can no longer threaten us, until everyone who makes up human civilization can live in peace and happiness. When that time comes, I will definitely return to the hometown that gave birth to us and make everything get back on track."
Time is still passing slowly. At this moment, the space carrier finally caught up with the Yuanhang spacecraft, which was still accelerating.
