Chapter 309 The answer from the past

This is undoubtedly another long journey.

The straight-line distance from Yan Xia's star city to the solar system is 427 light years, and it will take 3103 years at the speed of the Potato Chips.

In fact, smaller spacecraft can already reach very fast speeds.

More than 70,000 kilometers per second, greatly shortening the voyage time. Ella even built several super tracks on the upper end of the Potato Chips battleship. These super tracks are about 5,000 kilometers long and can accelerate a 50-meter-class starship to a maximum of 108,700 kilometers per second, which is more than one-third of the speed of light.

This is the fastest navigation speed of the Federation now, and the Olive Branch Civilization is slightly inferior in this regard.

After flying for more than 2,000 years, Yan Xia received a message from the rear.

"The number of individuals willing to become life and welcome death exceeds 2987 trillion, which is more than I thought. These individuals will be transported to various star fields to participate in the construction of the star fields."

"The remaining individuals will become a new star country, the Eternal Democratic Star Country, also called the Eternal People Star Country."

When Ella saw this message, she said to Yan Xia: "The naming level of Yan Xia is as high as yours, Yan Xia!"

Indeed.

After receiving the news, Yan Xia entered the dormant state again. There is a virtual world on the Potato Chip, but Yan Xia will not enter the virtual world. In fact, entering the dormant world in the dormant state is only fresh in the early stage, or it is a good way to prolong the life of some short-lived lives.

But for Yan Xia, it is too boring. After all, the virtual world is just a virtual world. Yan Xia has a nearly eternal life. He doesn't need to enter the dormant state. The reason why he enters the dormant state is just to enjoy the tranquility and the feeling of fleeting time.

One eye closed, one eye opened.

A thousand years passed.

Yan Xia woke up and saw that the clock beside him had reached 150056 AD. The clock eventually turned into a string of numbers. Time has become meaningless for the vastness of the universe.

"Yan Xia, the solar system has arrived."

Yan Xia once made the decision to surrender, part of which was not to destroy the solar system.

After all, if even the solar system is destroyed, then he will not be able to find his roots.

A rootless human has no thoughts in his heart. It's like a person who always wants to go home when he goes to work or school. What would it be like if he thinks that he has no home at all?

At least Yan Xia can't think of it. It's because he can't think of it that he thinks he should avoid this from happening.

Although the earth is gone, Yan Xia has never given up some ideas.

The Potato Chips entered the Oort Cloud, where nothing seems to have changed, and then spent several years crossing the Oort Cloud to reach the Kuiper Belt.

Ella observed Pluto.

The last time the Hope left, it did not pass by Pluto. Of course, this only exists in Ella's memory, and Yan Xia was in hibernation at that time.

But Yan Xia still felt shocked.

Because this dwarf planet looked so small in front of the Potato Chips, it was even attracted by the powerful gravity of the Potato Chips and deviated from its orbit.

Further in is Neptune.

This deep blue gas giant still stands still.

In the outer solar system, everything seems to have not changed.

Uranus, Saturn, and Jupiter, they are so huge that they are as calm as the breeze when facing the solar wind.

After flying over Jupiter, this is the place that has really changed.

"The orbit of Mars has become more elliptical than before, and its perihelion has even reached the vicinity of the Earth's aphelion."

The solar system was hit by gamma rays, which would not have caused too much disaster. It seems unreasonable for Yan Xia to tear the Earth apart, after all, the smaller Venus, Mars, and even Mercury are fine.

Yan Xia did not explore these things at the beginning, because he was not studying astronomy, and secondly, the most important thing at the time was the pressure of survival, so he had no time to think about these things.

Later, Yan Xia also put these things behind him, because the destruction of the earth had already become a foregone conclusion, and there was no point in exploring them.

Of course, there were some conjectures at the beginning.

For example, it was the extremely small probability of gravitational turbulence caused by electromagnetic force. Although the probability of electromagnetic force affecting gravity is almost zero, it is definitely not equal to zero. The unification of the four basic forces has proved that electromagnetic force can affect gravity and even convert with gravity.

Yan Xia thought so.

But now that he has arrived in the solar system, Ella's test results made Yan Xia realize that this was wrong.

"What really destroyed the earth is this."

On Ella's detector, there was a huge gravitational source in the original orbit of the earth. This gravitational source is: the primordial black hole.

The so-called primordial black hole is a black hole produced when the universe was born. It is different from the current black hole formed by the collapse of massive stars. The primordial black hole was born from the tear of space-time at the beginning of the universe. Primordial black holes were widely present in the early universe, but as time went on, primordial black holes died due to Hawking radiation.

Perhaps some of them grew into large black holes by devouring each other, just like other black holes formed by the collapse of stars, but they are also a small part.

And some primordial black holes have been lurking in the deep space of the universe.

In the 21st century, humans actually discovered that the orbits of asteroids in the Kuiper belt were very strange, and speculated that there were small primordial black holes outside the Kuiper belt, but at that time it was just speculation and could not be confirmed.

At this time, the primordial black hole was detected inside the solar system, and the mystery of more than 100,000 years ago was also solved.

The arrival of gamma rays activated the ultra-small primordial black hole in the solar orbit. This primordial black hole may have been only slightly larger than an atom before. Although the mass is also very large, 1 billion or 10 billion dense, it is only at the level of an asteroid and is difficult to detect.

However, gamma rays changed the orbit of the primordial black hole to maintain stability, causing the orbit of the primordial black hole to overlap with the earth, or even collide with it.

The earth was directly shattered under the influence of the primordial black hole.

This is a low-probability event, even as low as the probability of gamma rays hitting the solar system, but they occurred in superposition, leading to the direct destruction of the earth.

"So that's it."

The destruction of mankind is still an accident, just an accident superposition.

This is difficult for Yan Xia to accept.

Of course, even if there is no primordial black hole, the earth is not broken, and life on earth will be lost under gamma rays, but the survival rate at that time should not be so small, and humans may survive hundreds, thousands, or even tens of thousands of people.

Yan Xia would no longer be alone, and would try to return to Earth to look for traces of humans.

Everything will change.

However, all this is in the past, and there is no point in discussing it now.

"Yan Xia, I found traces of civilization on Mars." Ella suddenly said.