It is known that the dinosaurs became extinct about 70 million years ago, and the reason is highly suspected to have been the impact of an asteroid about 10 kilometers in diameter.

The asteroid crashed into Earth's Yucatan Peninsula in Mexico, creating the famous Chicxulub crater. It is speculated that the impact of the asteroid caused a large amount of dust to enter the atmosphere, blocking the sunlight for up to a year.

Large amounts of sulfuric acid also enter the stratosphere of the Earth's atmosphere in the form of aerosols, reducing the amount of solar energy reaching the surface by about 20%, and killing plants and marine plankton. As a result, the organisms that exist at the top of the food chain also become extinct. This was the end of the age of dinosaurs.

Scientists highly suspect that the asteroid came from the asteroid belt, but there are also some theories that the asteroid came from the Oort cloud.

Scientists speculate that at that time, in the vast galaxy of the Milky Way, there was a star that happened to pass by the sun, and the distance between the two was as close as two light-years, or one light-year, or even closer than one light-year.

This distance already belongs to the Oort cloud range.

Because of the influence of this star, the orbits of a large number of comets and asteroids existing in the Oort cloud were affected and began to orbit the inner solar system.

Asteroids and comets have hit every celestial body in the inner solar system. Earth is just one of them.

The rest of the stars have no life on them, so it doesn't matter if they hit. But there is a huge dinosaur world on the earth, and with this impact, the dinosaurs are all finished and extinct.

This is the logical chain of the Oort cloud and distant passing stars that led to the mass extinction of the dinosaurs on Earth.

In addition to this, passing stars may also play an important role in the formation of Earth's oceans.

A large part of Earth's water comes from the impact of ice comets. When an ice comet hits Earth, the ice melts into water, which accumulates and becomes an ocean. And where do ice comets come from?

According to the research, scientists and Chen Yue agree that these ice comets are very likely to come from the Oort cloud, or at least a considerable part of it from the Oort cloud.

Since it comes from the Oort cloud, it is very likely to be inseparable from passing stars. It is highly likely that because of their influence, the ice comets lost their stable orbits and eventually crashed into Earth.

Chen Yue thought back to himself in the Earth era, and a sigh of emotion arose in his heart.

"Maybe at that time, I bought a bottle of mineral water from a roadside shop, and this water went back billions of years, maybe it came from an ice comet in the Oort cloud at the edge of the solar system."

This is a very possible thing, and it is not false.

With emotion in his heart, Chen Yue watched the asteroid that was leaving the solar system go away.

He knew that from this moment on, he had truly left the solar system.

Because in this region, the gravitational pull of the sun is no longer dominant. The gravitational pull of the remaining stars in the Milky Way has overwhelmed the Sun.

Chen Yue turned his telescope and looked at the bright star in the distance again.

Even at such a distance, the Sun is still the brightest star in the sky.

"Sun, goodbye, goodbye.

I'm going to sail to other galaxies, and in the future, I'm probably going to even farther places.

In those places, I may see more magnificent scenery, encounter more magical phenomena, come into contact with more strange stars, and see more and bigger stars.

But I'll always remember that the solar system was my home. It was you who gave birth to human civilization and also gave birth to me.

Sun, goodbye, goodbye. ”

The human fleet is still accelerating, unstoppable.

What Chen Yue didn't know was that at this moment, in the other direction of the solar system, a huge space helicarrier came to a place about 1.2 light-years away from the sun after a long deceleration, and began to glide at a speed of 10% of the speed of light.

The captain of the Helicarrier Yunguang, Yunguang, in the main control room, sent a broadcast to the solar system in the form of electromagnetic waves.

"Captain of the Seventh Fleet of the Mosoti Civilization, Commander Mozhuo, please follow the following requirements to ship the corresponding materials and deliver them to the following coordinate points."

After sending the order, Yunguang looked at another soldier-looking Nanxing man in the main control room.

"Go ahead and investigate the disappearance of Otto."

On the word "careful", Yunguang deliberately accentuated his tone.

The soldier knew this, and immediately stepped forward to salute and said solemnly: "Yes." I'll look into it 'carefully'. ”

Yunguang knew that the Seventh Fleet of the Mosoti Civilization had already pronounced the death sentence from this moment on.

In any case, Otto is the co-captain of the USS Cloudlight. Whatever the reason for his death, he died under the control of the Seventh Fleet of the Mosoti Civilization. Then the Seventh Fleet will have to take responsibility.

The Seventh Fleet must be wiped out.

This is where the dignity of the three-level civilization lies, and it cannot be challenged.

Thinking of Mo Zhuo's figure, Yunguang felt a little sorry in his heart.

"You have more than a hundred years to move around, but you didn't do anything, and you ended up in this situation. Hey, perhaps, you've tried, but the head of your civilization is not willing to pay too much and has decided to give up on you? ”

Yunguang shook his head slightly, stopping to think accordingly.

Die or die, just don't delay the transportation of supplies.

At this moment, the soldier, who is also the head of the armed investigation team, has gathered the fleet and left the space carrier and began to set off for the solar system.

A full 50 third-level civilization level warships are completely enough to deal with the seventh fleet of the Mosoti civilization.

After several years of slowing down, the Armed Investigation Team finally reached the solar system. But to the surprise of the head of the investigation team, the solar system was empty at the moment.

"Wouldn't it? Murdra that guy absconded in fear of crime? You are a second-level civilization, even if you escape, where can you flee to? ”

"Report ...... Report! ”

A soldier barged in with a little panic: "The observation team has found a large number of ruins on many planets in the solar system, and preliminary observations show that the mode of destruction should be that it was bombarded with a large number of energy cannons first, and then completely destroyed it with a hydrogen bomb!" ”

"What? Energy cannons? ”

The head of the investigation team also changed his face: "A weapon of a third-level civilization? How can it be? Could it be that the Blue Moon Civilization discovered our supply point? ”

The Blue Moon civilization is the only civilization that has the motivation and the ability to invade the solar system.

After thinking for a moment, the regimental commander finally made a decision.

"Stop, don't move forward, lest you be ambushed by the Blue Moon Civilization! Send a survey ship to verify the situation, and if it's true, we'll evacuate immediately! ”

"Yes!"

As for what Mo Zhuo, the head of the regiment didn't care about it at all.