The last human in the universe

Chapter 145
A powerful ion jet is jetted out from the huge nozzle with a total area of ​​more than ten square kilometers at the tail of the Yuanhang spacecraft, endowing this giant spacecraft with a total mass of more than 2000 billion tons with surging power, pushing it to slow down. Slowly started the acceleration process.

At this moment, there are almost no other man-made objects above the orbit around Sedna.There is only a piece of wreckage left on the land of Star Sedna.

Either they have been blown up, or they have been loaded onto those spacecraft, and the acceleration process has also been started, and the flight to the asteroid has begun.

Human civilization has stayed and developed here for nearly a thousand years.A thousand years ago, Zhao Changxing came alone.Now, thousands of years later, Zhao Changxing started the journey again with millions of human beings.

Because the acceleration is too small, the people who are still awake at this moment, including Zhao Changxing, can't feel the existence of the driving force at all.

At this moment, in the spacious main control room and the first conference room of human civilization, Zhao Changxing and the rest of the civilization leaders all looked serious.

Apart from them, a larger number of scientists, engineers, secretaries, staff officers and others also looked serious.

At this moment, about 150 million spacecraft operation and maintenance personnel have been scattered all over the spacecraft, either closely monitoring every fault-prone part of the spacecraft, or carrying various equipment, ready to go at any time.

A monitor suddenly issued a Didi alarm.This indicates that the pressure in a pressure vessel is too high and the defined threshold is about to be exceeded.If it persists and cannot be mitigated, it poses a risk of explosion.

This alarm message was directly sent to Xiaoxi's global monitoring and troubleshooting platform.However, it did not issue the fault, but directly drove a multifunctional robot to the incident site according to the standard fault handling mode recorded in advance in the database.

After tightening the component connections and handling some program glitches, the glitch cleared.

Another piece of information was abnormal.This time, Xiaoxi still didn't hand over the matter to humans, but directly used robots to solve the matter.

In the entire Yuanhang spacecraft, there are a total of tens of millions of robots that can be driven by Xiaoxi, and their functions cover all walks of life.From troubleshooting, crisis management, life support, power supply, energy, water circulation, etc., it is impossible to do without the use of robots.

But Xiaoxi is not omnipotent after all.There are always some things that no matter how intelligent artificial intelligence is, it cannot be solved.This kind of thing must be solved by humans on the ground.

This is the significance of the 150 million spacecraft operation and maintenance personnel at the moment.

"There was an unexplained flooding accident in the cabin number 56115 in D area, and the 1156 team went to deal with it immediately."

"Yes."

A message was sent from one of the hundreds of secondary command rooms.The corresponding team immediately set off to deal with it.

"The positive-antimatter annihilation reactor No. 7 in Area A is suspected of having a heat dissipation failure. The 68-79 team went to deal with it immediately."

"Yes."

The positive-antimatter annihilation reactor can be called the heart of the entire spaceship, so there is absolutely no room for surprise.In order to solve this incident, more than 12 people from [-] teams went at the same time.

In the main control room of the spacecraft, Zhao Changxing and other civilization leaders had a huge screen in front of them.On the screen is a perspective image of the Yuanhang spacecraft.

At this moment, in the huge perspective image, there are small red dots one after another, flickering like fireworks.At the beginning, the number was small, but with the full power operation of the entire spaceship, the number of small red dots also increased rapidly.

Later, it even filled the entire spaceship densely, almost tens of thousands of them.

It seems that every part of the spaceship, from the hibernation room to the storage area, from the life support area to the power area, is full of malfunctions and alarms everywhere.

This situation is still very scary.If people who don't know the place see it, they may think that the Yuanhang spacecraft will explode in the next moment.But Zhao Changxing and the others knew in their hearts that there was nothing to make a fuss about in this situation.

This was expected.

Because even a small faulty lighting short circuit, or a malfunctioning door sensor, or even a blocked shower will mark a red dot on the perspective.

For a giant spacecraft like the Yuanhang spacecraft, all kinds of glitches that emerge in an endless stream are unavoidable.

I am afraid that even the Moyun Litar civilization cannot avoid this situation, let alone human civilization.

Five minutes after the red dots began to emerge on a large scale, this surge was contained.The data clearly shows that among the total of about 5 faults at this moment, more than 7 faults were eliminated in a short period of time after the maintenance robot army controlled by Xiao Xi began to join the battle.

Shown in the perspective view, more than 1000 red dots were eliminated.

150 million operation and maintenance personnel also joined in this encirclement and suppression battle.

New red dots are constantly being born, and red dots are constantly being wiped out.In each maintenance channel inside the spaceship, in each cabin with gravity or without gravity, both robots and humans are running fast.

This situation lasted for 7 days.Seven days later, the scale of the alert was abruptly suppressed, from a peak of about 7 to about 10.

During these 7 days, the speed of the Yuanhang spacecraft has only increased by about 2.2 kilometers per second, and it has just broken free from the gravitational field of Sedna.

Originally, the speed should be a little faster than this, but during this period of time, because of the endless faults and alarms, the thrusters have not been able to enter the full power operation state, which caused this situation.

Now, the Yuanhang spacecraft has officially started its journey to the inner solar system.

Now, the originally huge Sedna star has gradually become smaller, and finally turned into an ordinary dim star in the endless starry sky, no longer distinguishable from the rest of the stars.

In the blink of an eye, a month has passed.At this time, the number of red dots decreased again, and now there are only about 1.Among them, about 8000 can be disposed of by Xiaoxi herself.Only 2000 require people to go to the field for disposal.

At this moment, as many as 150 million operation and maintenance personnel have begun to hibernate in batches.Because it is no longer necessary for so many people to stay awake at this moment, and they are ready to repair the fault.

Of course, before leaving the solar system, the number of operation and maintenance personnel will always remain at a high level of more than 80.After actually entering the inertial navigation—generally speaking, the inertial navigation state is the safest, the number of operation and maintenance personnel will be reduced to about 50.

Some people are destined to devote all the rest of their lives to this journey.Every time someone goes to hibernate, it is a life and death.

After meeting this time, we will never see each other again.

At each group farewell party, Zhao Changxing made an appearance in person as much as possible, paying tribute to those who went to hibernate and those who were still awake.Even if there is really no time, he will send other civilization leaders to replace him.

At this moment, three months after setting sail, the total power of the thrusters has finally increased to the 80% level.During these three months, the Yuanhang spacecraft traveled a total distance of about 3 million kilometers.

In the vast sky, in the boundless universe, it is extremely huge, even enough to carry the fate of an entire civilization, but it is also extremely small, like cosmic dust, the Yuanhang spacecraft is silently advancing.

In this way, more than a year after setting sail, it finally approached Uranus, then Saturn, and then Jupiter.

It didn't stop here at Jupiter.Because it has finally reached its current speed, it will not only take a long time to slow down, but also consume a huge amount of energy.

However, before it arrived here, the people who originally lived in the Jupiter system had already completed the disposal of the materials here in advance.They have all boarded the space carrier that is the only remaining human civilization at this moment, and have already started synchronous acceleration along the forward trajectory of the Yuanhang spacecraft in advance.

In the end, the two sides converged hundreds of millions of kilometers away from Jupiter.

At this moment, both sides are maintaining an acceleration of 0.02 meters per square second, maintaining a relatively static state.

All the civilization leaders headed by Zhao Changxing stood on the side of the covered bridge together, and held a grand celebration ceremony for the people who had finally returned to the main body of civilization.

The materials from the Jupiter system were also transported to the Yuanhang spacecraft one by one, and other things were transported from the Yuanhang spacecraft to the space carrier.

After a brief rest, most people were arranged to enter hibernation.Zhao Changxing and others left the Yuanhang spacecraft and entered the space carrier.

The Yuanhang spacecraft still maintained its acceleration state, while the space carrier began to decelerate.In order to save fuel, it also used the gravity of Mars to slow down during this process.

Eventually, when it reached Earth, it slowed down just enough to enter Earth's orbit.

It finally landed in space only a few hundred kilometers away from the earth.

After human civilization left the earth for thousands of years, Zhao Changxing brought all the leaders of human civilization at this moment, and the ashes of those who gave their lives for the revival of human civilization, and returned to this great place that gave birth to human civilization. above the planet.

Looking at the huge earth-yellow planet under their feet, which is completely different from the colorful and magnificent earth in memory, Zhao Changxing and the other civilization leaders had a lot of thoughts in their hearts.

"Let's go to our hometown and have a look."

Zhao Changxing said.

(End of this chapter)