A gamma-ray burst in the Andromeda Galaxy five million years ago, Xiao Yu certainly did not actually observe it. When he was in the Andromeda Galaxy, Xiao Yu had reached the ruins of the neutron star collision. Two neutron stars collided to form a black hole, and around the black hole, some of the material that was ejected during the collision formed an accretion disk around the black hole. Through the analysis of these ruins, Xiao Yu determined what happened here millions of years ago, and determined that there had been a gamma-ray outbreak here, and also measured the intensity of that gamma-ray burst.

This is something that should only exist in inference, and it should not be measured by Xiao Yu in reality. But now, Xiao Yu really observed this gamma-ray burst, and all the data of this outbreak is exactly the same as the explosion in Xiao Yu's inference. Such a coincidence is largely impossible.

Xiao Yu once again fell into an inexplicable shock. So Xiao Yu immediately launched a follow-up observation of the Andromeda Galaxy. For this galaxy closest to his hometown, since Xiao Yu has the ability to sail the universe, Xiao Yu has never relaxed his observation of it, and in the past more than ten thousand years, Xiao Yu has accumulated a lot of information about the Andromeda Galaxy. At this moment, since the light carrying this gamma ray burst has been observed by Xiao Yu, it means that the light carrying the rest of the change information has also reached the Milky Way.

After observing the Andromeda Galaxy for a month, Xiao Yu was completely sure of this matter. The authenticity of the Andromeda Galaxy was also confirmed to have a time-lapse event.

What does that mean? Why did I leave the Milky Way, the Milky Way changed, I left the Andromeda Galaxy. The Andromeda Galaxy has also changed? Xiao Yu thought silently, "In these things, there seems to be some kind of law. This change seems to be following in my footsteps. ”

"Then, according to common sense, the Big Magellanic Galaxy, the Small Magellanic Galaxy, and the Ursa Major Dwarf Galaxy should also have changed. After all, I've been to those places before. ”

So Xiao Yu immediately shifted his focus of observation, and aimed a large number of high-precision long-distance observation equipment at the three faint Milky Way satellite galaxies in the celestial sphere. However, the observed data once again exceeded Xiao Yu's expectations.

Among the three satellite galaxies of the Milky Way is the Small Magellanic Galaxy. None of the Ursa Major dwarf galaxies have changed. On the contrary, the Great Magellanic Galaxy has undergone some changes. Xiao Yu observed that the size of the Big Magellanic Galaxy has decreased by a lot, and its mass has also decreased by at least 60%.

"It's understandable that the McEllanic and Ursa Major dwarf galaxies haven't changed, it's just that the change hasn't spread to them. Or maybe they don't change at all. How is the Big Magellanic Galaxy explained here? Xiao Yu's mind was full of fog at the moment.

After thinking for a moment, Xiao Yu made a decision. Dozens of long-distance fleets were sent out by Xiao Yu and set off towards dozens of satellite galaxies in the Milky Way. Xiao Yu decided to search for traces of the Pegasus civilization in these satellite galaxies. During the period of his absence, it is unlikely that the Pegasus civilization will make a technological leap, which means that it is very likely that they are still in the sixth level civilization stage. As long as it is in the sixth-level civilization stage, then it basically does not have the ability to travel to the galaxy, but can only transfer between the galaxy and the satellite galaxies of the galaxy. These fleets are tasked with exploring the satellite galaxies as well as the Pegasus civilization.

Xiao Yu's huge tentacles have been fully extended. Searching for all the information that will help solve the current dilemma.

The fleets going to the galaxy's satellite galaxies have not yet reached their destinations, and the exploration fleets within the galaxy have already reached their respective destinations. The main targets of this round of exploration are the various high-level civilization ruins that Xiao Yu knows are hidden in the galaxy.

Xiao Yu was the first to probe. It is the remnants of the seventh-level civilization in the mechanical direction around the silver heart. The relics of this seventh-level civilization in the mechanical direction are very cleverly hidden by using space technology, but now Xiao Yu is also a seventh-level civilization, so he naturally has the ability to find it out.

Xiao Yu carefully measured the spatial curvature and fluctuation degree of each area around the silver heart, and explored for more than ten years, but the final result was nothing. According to the information from the last time he came to Silver Heart, Xiao Yu was sure that if the seventh-level civilization ruins were still here, then under his own intense search, he would definitely be able to find them. But now that the result is nothing, it's worth playing.

"Is it gone? A true galactic time lapse shouldn't be like this. If it was a real time lapse, then the situation in the galaxy should not have changed so much, at least, the two civilizations of the Sweeper and the Guardian should exist, and this relic here should not disappear. Xiao Yu thought slowly. By this time, another exploration fleet had reached the Aquila Nebula.

The Aquila Nebula is an important stop on Xiao Yu's galaxy journey, and it was in the Aquila Nebula that Xiao Yu met the white dwarf alien beast called the Mirage, and obtained the body of his compatriot, the earth girl Zhang Shengya, and according to the diary tips left by Zhang Shengya, he found a way to unify the four basic forces in the multi-body system, and finally mastered the curvature navigation and had the qualification to truly step into the vast universe.

Xiao Yu soon found the star he named Aquila A, and then extended it to find the binary star system where the mirage once lived.

The white dwarf beast once said that it was injured by the Taihao civilization and then trapped here for nearly 10 million years, according to common sense, the galaxy has gone back 2.5 million years, and this beast should still be staying on the white dwarf at this moment. However, Xiao Yu's fleet arrived here, but did not find any clues on this white dwarf. Like all other white dwarfs in the Milky Way, this white dwarf is orbiting quietly with its companion star around the common center of mass of the two stars, without any anomalies.

It's just an ordinary white dwarf. Aside from having a companion star, there's nothing special about it at all. Xiao Yu didn't find a powerful beast on it that had become a rank sixth.

Xiao Yu felt a sense of loss in his heart. Xiao Yu had already anticipated what he would encounter next, but Xiao Yu still set off.

This time, the destination was a more ordinary star system ahead. It's home to the beasts. According to Xiao Yu's understanding of the history and evolution process of the Arrow Beast Clan, Xiao Yu knew that according to common sense, the Arrow Beast Clan should still be at the level of second-level alien beasts at this moment, and the entire group was only about 10,000 heads.

Xiao Yu found the planet with an ecological environment very similar to the earth. There are a large number of animals and plants on this planet, and the ecological environment is good, but Xiao Yu has not found any traces of the beasts.

Mountains and rivers, oceans and lakes, forests and deserts are all part of the planet's diverse landscapes. There are birds, there are animals, there are carnivores, there are herbivores. Tens of millions of species thrive quietly on this planet. They have long formed a stable food chain, and they are closely integrated with the environment of this planet, and everything is natural.

The scenery here is beautiful, at least in Xiao Yu's eyes. However, the robot representing Xiao Yu's will stood in this picturesque landscape, but felt a piercing chill.

There's something missing here. Without those beast races that already possessed wisdom, Xiao Yu always felt that something was missing here.

Here, too, Xiao Yu found nothing. At the same time, another fleet arrived at the ruins of the seventh-level silicon-based civilization that Xiao Yu had visited. Unfortunately, it was also empty, with a binary star system consisting of a white dwarf and an ordinary star. There is also a planet orbiting them within this binary star system. Xiao Yu explored this planet, and as expected, the dilapidated and huge buildings on this planet that were suspected to be seventh-level civilization factories also disappeared. It's just an ordinary planet with no life. Above it, there are only gentle plains and mountains, with the occasional canyon. Because the earth's core has long since ceased to be active, there are no orogenies, no volcanoes and no earthquakes on it. Only the dense craters that dot it tell the story of outsiders who have come here.

The broken Rank 7 Silicon-based Civilization Neutron Battle Star naturally disappeared. It's as if nothing like this has ever existed here.

Xiao Yu also went to another seventh-level civilization ruin, the seventh-level travel direction, or the star gate left by the eighth-level civilization. It was with this star gate that Xiao Yu was able to cross a distance of millions of light years in just a few years, but what was presented in front of Xiao Yu at this moment was only a piece of nothingness.

I don't know where that stargate went.

Xiao Yu was frantically exploring in the galaxy, and Xiao Yu did not let go of any place he could set foot in, but he never found anything. Everything here is so similar and not similar to Xiao Yu's memory. It's as if the entire galaxy has gone back in time, but in the process of going back in time, something has been lost, and it just so happens that these things are very important to Xiao Yu.

Xiao Yu couldn't help but have a little doubt about his memory: "Did I really go out of the galaxy?" There is nothing in the galaxy at this moment that can prove that I have existed......" (to be continued......

PS: I'm sorry...... I have a cold, my head is a little weak, and this chapter is a little late...... Rainbow hurried to write the next chapter