The orbits of the eight planets of the solar system are like eight traps outside the sun.

The first and smallest circle is Mercury, and the second is Venus.

The earth, on the other hand, is the third circle.

Mars is the fourth circle and Jupiter is the fifth.

Between Mars and Jupiter, there is an asteroid belt, made up of 600,000 stars and cosmic dust.

The asteroid belt of the solar system is a real ring that orbits the sun.

It has been 4.568 billion years since the formation of the solar system.

This is an incomparably long time for human beings, so long that no one knows what has happened in these 4.5 billion years.

Human beings can only speculate about what happened in the universe by what they see in their eyes.

And in the solar system, the most mysterious place is the asteroid belt.

In the astronomical world, there are two points of view.

One view is that there was once a large asteroid in the orbit of the asteroid belt, which shattered into countless pieces due to the impact, and finally formed the asteroid belt.

Another view is that the asteroid belt is the early stage of the formation of the solar system, a group of stars under the gravitational pull of Jupiter, unable to form large planets, and finally formed the asteroid belt.

However, both views are only speculation and have not yet been conclusive.

Even if microorganisms were found in meteorites brought back from outer space, the conclusion was not proven.

After coming out of the Biological Research Institute, Fang Yuan and the others went home in the same car.

Eve held her cheeks and watched the sunset outside the car window.

The sun on the horizon was radiating bright sunlight, illuminating the earth, burning a fiery red under the clouds.

"Youwei, do you think the sun is beautiful?" She turned back to Han Youwei beside her.

"Yes, it's beautiful, it's 4.6 billion years old, and it's still emitting light and heat, how beautiful." Han Youwei also looked at the scorching sun outside the window, and sighed in her heart.

"Captain, do you say that the asteroid belt is really formed by the crushing of an Earth-like planet with intelligent civilizations?" Eve turned her head to look at Fang Yuan again, asking the question in her heart.

This question is not only for her, but also for everyone in the car, even everyone who saw the meteorite in the biological research institute just now.

A galaxy that nurtures life is, from a human point of view, great and welcoming.

However, the solar system is anything but peaceful.

"Who knows. In fact, I hope that there will be no big planets in the orbit of the asteroid belt, because if there is a big planet there, then the present of the asteroid belt may be the future of the earth. Fang Yuan also sighed.

In the car.

In addition to the five members of Fang Yuan's team, there were also two cadets of the military scientific research class.

The military scientific research class is actually a class at the university, but it is slightly special, and the procedure is the same as that of the military school.

Therefore, the cadets in the military scientific research class are all classmates.

Among the two military scientific research class students in the car, there was one named Lang Xiaonian.

Lang Xiaonian is not outstanding in all aspects in the military scientific research class, so he is rarely noticed.

What came out of the Biological Research Institute just now was that Lang Xiaonian and one of his classmates who were better in the class wanted to ride in the same car as Fang Yuan and the others.

Everyone is a classmate, and they have fought together, and they have a very good relationship with each other, so Fang Yuan and the others naturally will not object.

Eve usually talks a lot and can talk to anyone.

She looked at Lang Xiaonian and asked, "You and Professor Lang are both surnamed Lang, are they relatives?" ”

"Uh...... He's my dad. Lang Xiaonian was stunned for a moment and replied.

"Professor Lang is your father? Then why didn't you go home with him? Everyone in the car was a little surprised.

"I prefer to be around everyone." Lang Xiaonian replied with his hands outstretched.

"By the way, since Professor Lang is your father. Then you know astronomy as well, right? Tell me, what do you think of the two views on the asteroid belt? Fang Yuan learned that he was Lang Tongguang's son, and immediately became curious.

"Forehead ......"

Lang Xiaonian was stunned for a moment before replying: "Actually, in terms of the view of the asteroid belt, I am different from my father. ”

"How?" The crowd was even more curious.

The father and son actually held different views on the same matter,

Lang Xiaonian explained: "Actually. My dad's view of the asteroid belt was more inclined to be that there were no planets there in the first place, because Jupiter's domineering gravity caused the asteroids and cosmic dust there to fail to coalesce into large planets in the early days of the formation of the solar system.

"I don't think it's the same, I'm more inclined to have a terrestrial planet there, which shattered into hundreds of thousands of pieces because of the impact."

Fang Yuan and the others became more and more curious, and asked, "Then what did your father say?" Have you guys discussed this before? ”

"Of course it was discussed. My dad thinks I'm still young and has weird, unrealistic fantasies, so I'm more inclined to the asteroid belt impact formation hypothesis. He also said that when he was younger, he also agreed with this hypothesis, but later gradually changed his opinion through various data. Lang Xiaonian explained.

"Why do you think the asteroid belt was formed by the impact of terrestrial planets?" Fang Yuan asked again.

Lang Xiaonian didn't answer directly, but took Eve's tablet, entered a string of numbers on it, and then handed it to everyone.

I saw this string of numbers displayed on the tablet.

0、3、6、12、24、48、96……

In fact, it is not difficult to find the pattern of this string of numbers, starting from 0 and then moving to 3, and then each number is twice as large as the previous number.

This sequence is a relatively simple sequence and can be seen at a glance.

It's just that Fang Yuan and the others looked at it again and again, and they didn't see what this string of numbers had to do with the asteroid belt under discussion?

"What does this sequence mean?"

"Is it the number of asteroids in the asteroid belt?" Niu Dazhi began to diverge his thinking and think seriously.

"You better don't use your brain, you're thinking too biased, you don't count your own bias, and you're leading us astray." Eve began to scold him again.

"Then you say, what do these numbers mean?" Niu Dazhi was not happy.

"Can't you see the pattern of these numbers?"

"How can you not see that 6 is twice as much as 3, 12 is twice as much as 6, the latter is the same, and the latter number is twice as much as the previous one, this rule is too simple. I was also seriously admitted to Donghai No. 1 Middle School. Niu Dazhi rolled his eyes.

Since there was only one number series and no other information, several people could not see the connection between the number of the ship and the asteroid belt for a while.

"What does this sequence represent?" Fang Yuan asked directly.

"This sequence, I call it the Planetary Secret, and it is because of this sequence that I insist that the asteroid belt was formed by the fragmentation of a large planet." Lang Xiaonian replied.