"Li Yu, we just left like that?"

This unnamed river galaxy in the laboratory has left too many impressions on the laboratory. The laboratory has also stayed in this river galaxy for a long enough time. Now that he leaves, Fang Qianmo feels a little reluctant to leave.

"Of course we have to leave. There is nothing worth studying in this river galaxy. It's time for us to go to the next river galaxy!"

Li Yu of course expressed satisfaction with the laboratory's harvest in this river galaxy, and expressed his expectations for the adventure of another river galaxy.

Li Yu and the others no longer care about the future development of the unnamed river galaxy and the future of affiliated civilizations. They have left them enough strength. If they cannot face the ups and downs of the future in this way, then there is no need for them to exist.

However, Li Yu still left the necessary communication equipment under the affiliated Sixth Ring Federation of Civilization.

After all, he is a biological son, isn't he?

Next, choose the river galaxy, and Li Yu and the others have differences.

"With so many rivers, just pick one of them? Isn't it a waste of time after analyzing them?"

Xiao Wei listed a lot of river galaxies and asked Li Yu to choose a target, and then the differences occurred. Originally, Xiao Wei could decide on her own, but she didn't know what she was thinking, so she decided to let Li Yu choose.

Li Yu pointed at one casually, but Lin Wanbai stopped doing it. She felt that with her talent, she would choose a reliable target.

However, Fang Qianmo disagreed.

Originally, adventure is an industry that accidentally discovers surprises. If everyone is like Lin Wanbai, is adventure still called adventure?

So, both sides are in a tangle.

In the end, Li Yu made the decision and asked Xiao Wei to randomly choose a river galaxy and jumped over.

Xiaowei actually had no random choice. She was very interested in one river galaxy, but it was actually two river galaxies.

These two river galaxies are happening in the universe, with large collisions of galaxies.

Xiaowei made a model based on the data detected.

It can be seen from the model that both are rivers three times the size of the Milky Way, and under the action of gravity, they eject matter to each other.

"It's like a pair of glasses!"

Lin Wanbai made a comment on the model projected by Xiao Wei.

"This is like glasses, it should be like a human head. The two bright galactic hearts are like eyes, material flow, like nose bridge bones."

Sun Yixuan's description is closer to the truth.

The current location of the laboratory fleet is at the center of the collision between two rivers, just in the stream of matter.

I have to say that the location Xiao Wei chose was just the right time to see two river galaxies spitting at each other. This description was described by Lin Wanbai.

The collision of galaxies does not mean that two galaxies will directly collide.

In most cases, two galaxies will pass by each other, and in very rare cases, two galaxies will directly collide.

If this happens later, the two galaxies will eject a large amount of matter, and the remaining matter will re-form a larger galaxy.

There is another situation in galaxy collision, that is, the mass of a river galaxy is extremely large, that is, the black hole in the center of a river galaxy is extremely large, so it will capture another river galaxy and make it its own satellite galaxy.

What's next? Large galaxies slowly attract the matter of small galaxies.

There is such a material exchange belt between the Milky Way and its several satellite galaxies.

Another situation is that two galaxies spit a few sips of water at each other and then really pass by.

What we need to emphasize here is that the collision of galaxies is an extremely long process. Scientists on Earth believe that the Milky Way will collide with another overlord in this galaxy group, the Andromeda galaxy, in 4 billion years.

With this time, it is estimated that humans will be extinct several times.

"The phenomenon of galaxy collisions is very helpful for us to study the early stages of the universe. In the early stages of the universe, the collisions between galaxies were much more violent than they are now."

Li Yu was still very satisfied with the goal Xiaowei chose.

"Big fish eat small fish?"

Lin Wanbai looked at Li Yu and said this.

Li Yu nodded and said that Lin Wanbai was right.

According to Li Yu's speculation, in the early days of the universe, star-making movements were relatively frequent, and a large number of stars would form every day, and stars would die and form black holes.

The powerful gravity of black holes will aggregate into primitive galaxies. At this time, galaxies collide very frequently, and the consequence is that a large number of river galaxies begin to appear.

"It seems that we need to stay here for a while, at least study the collision between these two rivers."

Galaxy collisions are very common in the universe, but this is based on the scale of the entire universe. This phenomenon is not very common in a celestial area.

That's why Fang Qianmo said that the laboratory needs to stay here for a while.

"The mass flow outside actually reached 5,000 kilometers per hour!" Sun Yixuan discovered a data and said in surprise.

"It's true!" Lin Wanbai first looked at the data detected by Xiao Wei, and then said in admiration.

After saying that, Lin Wanbai's eyes rolled and she came up with an idea: "Li Yu, let's surf!"

Star surfing? This is a good idea, but there are still problems.

"Wanbai, you didn't expect that although the flow of matter is very fast, their density is very low and they can't carry you at all!"

Fang Qianmo said that it is correct. Although the material flow is called material flow, it is also compared to the universe. To put it bluntly, the density of material flow is extremely low. It is good to have 100,000 hydrogen atoms within one cubic meter.

"It's not difficult! Haven't you heard of sun sails? We just built a big surfboard!"

Lin Wanbai did not give up and proposed an idea.

Sunsail? This idea is good, but if you want to create a special surfboard that is enough for surfing, there is no problem with the laboratory. The question is, how big is the surfboard you need to make?

One thousand square kilometers should not be large!

Lin Wanbai is an action-oriented person. After she had this idea in her mind, she began to do calculations in the laboratory and then began to make this huge surfboard.

"Haha, let Wanbai do an experiment. If it works, we will come again!"

Fang Qianmo completely let Lin Wanbai act as the experimental subject.

When Lin Wanbai made her surfboard, Xiao Wei made new discoveries.

"Li Yu, I detected a hundred light years away, a strange galaxy is rushing towards us."

After saying that, Xiao Wei projected the detected situation.

When Li Yu and the others looked, they found that Xiao Wei was right, it was indeed an extremely strange galaxy.

A star is rushing in front and three planets are chasing behind. In the bright material belt, the pair pulls out a brighter ribbon.

In the material belt, there are many meteorites and even planets. These are all pulled away from the original place under the gravity of super-mass. However, it is still rare for a star system to be pulled away from it, even though this star system is very special.

"On the second planet, there is actually life!"

This is another discovery.

The planet is not revolving around the star, but is following behind the star's butt and eating soil, and getting farther and farther away from the star. In this case, there is life on the second planet, which is a miracle.

"Do we want to go to that planet to investigate?" Fang Qianmo suggested.

"Don't worry, that planet is there and cannot escape. After Xiaowei establishes the precise collision model of the two rivers, it will not be too late for us to go to that planet."

The collision of galaxies is more important.

"However, we can launch a probe in advance to conduct early detection of that galaxy." Although Li Yu decided to investigate that planet, it would not affect the laboratory launch of several probes to that planet.

After Li Yu finished speaking, he began to build a collision model with Xiao Wei.

Although these two river galaxies have begun to collide, the distance between them is still very far.

Five thousand light years, this is the distance between two colliding rivers.

But five thousand light years, for two river galaxies with a diameter of 350,000 light years, it is a very short distance, which is equivalent to two cars passing by one centimeter on the road.

If you are not careful, this distance will end up with the car being destroyed and the person being killed.

Fortunately, according to Xiao Wei's calculations, the two river galaxies will pass by each other at this distance, which means they do not need to collide head-on.

In fact, the probability of a head-on collision between galaxies is very small.

By imagination, you can know that in addition to gravity, there are other forces. When two celestial bodies are close enough, the distorted space-time will also generate repulsive forces to prevent the two celestial bodies from getting close.

This phenomenon is more obvious in the microscopic world, and the nuclei are positively charged, so they will maintain a certain distance.

However, applying enough force can make two atoms close enough to collide, which is much more powerful than a neutron bombardment.

Fusion reaction is also a manifestation of this phenomenon.

The occurrence of frontal collisions means that the repulsive force between two celestial bodies can no longer resist gravity, so they can only collide with one path.

When Li Yu focused on studying with Xiao Yi, Lin Wanbai's surfboard had been built. When he accidentally turned out, he discovered that there was a huge artificial creature outside the Space Number.

This is a surfboard that is 1,000 kilometers long and 100 kilometers wide.

It’s not that Li Yu couldn’t imagine a more accurate adjective, but that he couldn’t imagine how to surf when Lin Wanbai was less than 1.6 meters tall, standing on this surfboard that was definitely a giant to her.

However, Li Yu obviously underestimated Lin Wanbai's imagination.
Chapter completed!