What was presented in front of Xiao Yu was a vast and mysterious starry sky painting. There are hundreds of billions of stars here, and countless planets, comets, asteroids, debris, and interstellar dust gather here. It's quiet, it's deep, and a vast river system is running quietly here. In these millions of years of history, there have been countless vicissitudes, joys and sorrows, or heroic or lingering things that have happened in this vast river system, but now, the traces of the existence of all these things have been erased.

Xiao Yu is very familiar with this place, because Xiao Yu has survived here for more than 100,000 years. But Xiao Yu felt that this place was very unfamiliar. Everything here is not what I remember. At this distance, through precise long-distance measuring instruments, Xiao Yu can clearly see the sun that should not exist for a long time, the Crab Nebula supernova that should have exploded a long time ago, the Tianyuan four stars that have long been destroyed, and many things that should not exist.

Xiao Yu entered the galaxy with a little dazed, and sent a message in the form of space broadcasting.

"Shenzhou civilization, I am Xiao Yu, because I noticed that something unusual happened in the galaxy, I returned here from the distant Andromeda galaxy. Can you receive this message? If you can receive it, then please respond to me, I would love to hear from you. ”

As long as it is an advanced civilization in the galaxy, it can receive this message, but because of this information, Xiao Yu has taken some kind of encryption measures, Xiao Yu believes. Only the Shenzhou civilization can decrypt this information and finally obtain the information loaded on this space broadcast.

Xiao Yu was very eager to get a response from the Shenzhou civilization, even if he couldn't get information about these strange changes from the Shenzhou civilization. It's good to just let Xiao Yu know that the Shenzhou civilization is still safe. But after waiting for a few days, Xiao Yu finally gave up this thought.

In the deep universe, the galaxy still maintained its quiet appearance, and no echo was received by Xiao Yu.

Xiao Yu can be sure that if the Shenzhou civilization still exists, then the Shenzhou civilization will definitely be able to receive the messages sent by itself. And if the Shenzhou civilization can receive this information, there is no reason why they should not respond to themselves. Since I can't get a reply. That can only prove one point, the Shenzhou civilization is not in the galaxy at the moment.

So where did the Shenzhou civilization go? Xiao Yu didn't know. Has the Shenzhou civilization been destroyed? Xiao Yu still didn't know. The news of Shenzhou civilization is unknown, so what about Zhang Shengya? When you leave on your own. What about the Pegasus civilization in the Small Magellanic Galaxy? Xiao Yu also didn't know. Xiao Yu didn't know anything.

"The Sweeper Civilization, we are the Shenzhou Civilization from the distant extragalaxies, and we are here on a mission to give you something. These things will help boost the Neutron Battlestar's combat power. If you can receive this message. Then please respond. "After the Shenzhou civilization never responded. Xiao Yu tried to send a message to the Sweeper civilization.

But Xiao Yu was still disappointed. Xiao Yu still hasn't heard back. After that, Xiao Yu sent messages to the Guardian Civilization, the Torol Civilization, the Alien Beast Taihao, the Technology Taihao, the Ghost Taihao, the Python Beast, and all the other beings whose names he knew. But without exception, Xiao Yu did not get a single response.

Xiao Yu at this moment. It's like a traveler who has been away from home for many years, after returning to his hometown again. The traveler was greeted not by smiling fellows, but by dilapidated houses and abandoned fields. It was empty, uninhabited. The lifeless stars and planets knew what was going on here, but they couldn't tell Xiao Yu what they saw, and Xiao Yu couldn't get what he wanted from them.

Sighing slightly, Xiao Yu began to prepare for a comprehensive river exploration. Through this means of detection, Xiao Yu can know if there is a spaceship that is sailing in the Milky Way at a curvature above a certain speed at this moment. Xiao Yu needs to find a more advanced technological civilization, hoping to get a little information about the galaxy from them.

This kind of detection method is very troublesome, so Xiao Yu has been preparing for more than a year. And in just this year's time, Xiao Yu has manipulated his fleet to advance a distance of more than a thousand light years. On this route, Xiao Yu arranged enough instruments. Spaces are interconnected and mutually influential, and by measuring the fluctuations of space within this range, Xiao Yu can grasp the distortion of the entire river system.

With a little trepidation, Xiao Yu activated these instruments. Immediately, a huge stream of data rushed into Xiao Yu's mind, and Xiao Yu mobilized his huge computing power to digest the data one by one.

To get accurate results, this information needs to be collected continuously for at least three days. After three days, the final monitoring results appeared in Xiao Yu's mind. This result made Xiao Yu's heart sink again.

The end result is zero. The range set by Xiao Yu for this monitoring is that any curvature sailing speed above ten times the speed of light will be observed by Xiao Yu. But even if the conditions are so lenient, Xiao Yu's final conclusion is still zero. This means that during these three days, no spacecraft in the entire galaxy was traveling with a curvature of more than ten times the speed of light. And one thing is obvious, any normal technologically advanced level 4 civilization, whether it is in a state of war or peace, even if it is not to meet military needs, but normal civilian needs, they will definitely have a spacecraft in curvature. It's like the age of the earth, when there were no fighter jets flying, there were still civil airliners flying in the sky.

But the data is all zero. This basically means that there is no civilization of level 4 or above in the galaxy at this moment. This is a very terrible result, in fact, Xiao Yu believes that the actual situation should be a little more terrible than this. It is very likely that not only the fourth-level or higher civilizations, but also the entire galaxy, there is a very likely lack of even third-level civilizations, second-level civilizations, or even first-level civilizations.

"Where have all the sapient beings gone?" Xiao Yu thought a little coldly in his heart.

Everything Xiao Yu saw and detected was unmistakably telling Xiao Yu that time in the Milky Way had indeed been reversed. This time is different from the last time, the last incident, the maze arranged by Taihao Civilization can't stand scrutiny at all, but this time, no matter how hard Xiao Yu tries, he can't find a clue.

"Go to Silver Heart, Silver Heart's supermassive black hole may be able to tell me a little bit about what happened here......" Xiao Yu thought silently, changed his course again, and sailed towards Silver Heart. At the same time, Xiao Yu also launched some probes and sailed towards the position of the sun, the position of Tianyuan 4, the original crab nebula, the Aquila nebula and other positions.

Xiao Yu's scientific and technological theory at the moment told him that black holes are the most difficult to change, so by observing some data of the silver heart black hole and comparing it with his previous data, he may be able to find a little information to study what is happening in the Milky Way.

While strolling forward among the vast galaxy, Xiao Yu was still trying to observe every starry sky he passed by, and observed every star that he had recorded. Some stars have appeared that weren't supposed to exist, such as the star in the Crab Nebula. The supernova explosion of this star was observed in the Song Dynasty on Earth, and it has not exploded yet after the suspected time has been flipped. It maintains its end-stellar state and is swaying a lot of matter.

There are some stars that are supposed to exist that have not yet appeared. Xiao Yu had observed a very young new star, but at this moment, it was still in the protostellar stage, and a large number of interstellar dust clouds fell on it like raindrops, increasing its mass, and around it, other protoplanets were being formed......

The fleet where Xiao Yu's main body is located has already reached the Silver Heart position. And at the moment, the probe has not yet reached the position of the sun. Because the sun is on the other side of the galaxy at the moment, the distance to reach it is farther than the distance to reach the heart of the silver.

In this process, Xiao Yu did not find any scientific and technological civilization creations, nor did he receive any information about any scientific and technological civilization, nor did he see any shadow of the existence of scientific and technological civilization.

Of course, there will be no traces of the last time when many powerful beings fought here. After reaching the center of the galaxy, Xiao Yu made a detailed observation of the black hole in the center of the Milky Way, analyzing it in terms of mass, accretion disk, angular momentum, gravity, electric charge, and the stars that revolve around it. The final conclusion disappointed Xiao Yu again. This black hole is exactly what it looked like 2.5 million years ago, which is completely consistent with the data that Xiao Yu extrapolated forward from the previously known data. This means that Xiao Yu's hopes of trying to find clues from the Silver Heart Black Hole have been disappointed.

"What the hell is going on here, where did the Shenzhou civilization go, and where did Zhang Shengya go?" Xiao Yu thought a little depressed, "What's wrong, what's wrong?" ”

At this time, Xiao Yu once again discovered something that shocked him inexplicably.

Xiao Yu observed a gamma-ray burst from a specific location in the Andromeda Galaxy. In Xiao Yu's records, the gamma-ray burst at that location should have occurred five million years ago. (To be continued......)