When it was late at night, two young people were writing questions wildly.

Li Zhendong was very angry, really angry. Every time he was surpassed by Zhang Yuan, he had to work hard again to surpass the other party.

Working hard is a very painful thing for him.

Especially, this guy was doing junior high school mathematics questions while giggling happily. What is this?

Can you still do the junior high school mathematics questions happily like a god. Is this a human?

After grabbing his hair, Li Zhendong felt irritated. The various words on the book were like fleas, jumping east and west, and after reading for a long time, he didn't know what he was talking about.

I can't calm down and I won't watch anymore.

I glanced at Zhang Yuan's question again: "Prove that 2 is an irrational number to the power of n. (n is a positive integer greater than or equal to 2.)"

"Proof: Assume that 2 is a rational number to the power of n, and counting p/q, p, q are prime numbers for each other."

"Then 2=(p^n)/(q^n), that is, 2(q^n)=(p^n)"

"Move the item to get p^n=q^n  q^n."

"Fermat's great law can be obtained: this equation has no positive integer solution. Therefore, assuming that it is wrong, 2 is irrational to the power of n."

Li Zhendong almost vomited a mouthful of blood: "You can't teach my sister like this, really can't! And you are helping her with the Olympiad math problems, how can this work?"

Zhang Yuan was stunned for a moment and found that he seemed to have become a thug who did his homework for free without realizing it.

But it doesn't matter, the whole proof idea... If I copy it exactly the same, the teacher will definitely laugh crazy.

"Forget it, I won't do it anymore. It's enough to get here." Zhang Yuan yawned, feeling quite happy.

Li Zhendong finally breathed a sigh of relief, and couldn't wait to put down the books in his hand and rub the painful temples.

He picked up his telescope, walked out of the balcony, and looked into one direction in the deep space.

Glitzer 581, a red dwarf star located about 2 degrees north of Libra Beta, their destination.

Its mass is 0.31 solar masses, a radius of 0.38 solar radius, and its surface temperature is about 3,480K (3206.85℃).

The 10.56 visual star means that ordinary astronomical telescopes cannot see there, but Li Zhendong is still searching tirelessly.

That is the future parent star!

Li Zhendong suddenly had a whim: "Why are there any deep space plan? Could it be that the top humans have learned that aliens will come to attack the earth?"

"impossible!"

Zhang Yuan responded lightly: "If this is true, it is definitely a gathering of global power to build a spaceship on a large scale. And it is our turn to escape? You should have watched various science fiction movies. When the end of the world is coming, how much does the ticket to Noah's Ark cost? Even if we are the sons of scientists, it is not necessarily that important, right?"

"Although the movie is not real, it is also a partial portrayal of the truth. Now no national leader is in a hurry to run away. When did humanity become so noble?"

Silence for a while.

The 500,000 volunteers are not the best people in the earth's civilization, and everything depends on personal volunteers. There are a few scientific giants with dreams, but real political celebrities cannot give up everything on the earth and go to such poor and bad places.

Li Zhendong smiled and said, "Yes, so no aliens attacked the earth. So what did you think is the reason?"

Zhang Yuan pointed to both directions of the sky and frowned and said, "It may be that, or this... or both reasons, or there are more important reasons that are not known to us..."

In the direction of Zhang Yuan's finger, there is a star, KIC-8462852, commonly known as Tabi Star.

One in the other direction is the η star on the base of the ship.

Looking up at the sky.

The moon is bright and the stars are sparse, and the lights in the big city cover the bright starry sky above our heads. It becomes even more difficult to discover these stars.

In 1977, there was a major power outage in North America.

On that night when the lights disappeared, the vast sky revealed its original appearance.

A ridiculous scene happened. That night, the police station actually received many calls from the police, saying that "Aliens attacked the earth!"

The reason is nothing more than... this group of urban people have never seen the real Milky Way. They are so scared that they are at a loss by the power of the eternal past.

Yes, Mother Earth is so warm and gentle. Humans of that era are reluctant to leave their cradles and have gradually forgotten the vast world outside.

But……

This world is not just humans.

The universe will not disappear directly because of humans' hidden ears.

The first challenge comes from the "Ship Base η Star", also known as Haishan II, an extreme super giant, which has more than a hundred times the mass of the sun. Scientists estimate that this star may explode within a million years and form an extreme supernova!

Note that it is a supernova, with an extra word "美" than an ordinary supernova.

If the η star on the base of the ship is 7,500 light years away from the solar system, it is pretty good news, then another news is simply fatal...

After research, its rotation axis may have been aimed at the solar system, which is tantamount to a stellar cannon that is ready to be launched at all times!

When the η star at the base of the ship explodes, a powerful gamma ray explosion will strafuse the entire solar system.

"I'm sorry, this bright star cannot be seen in the northern hemisphere."

Of course, this disaster may be very large and small. First of all, the time node of its outbreak is too vague. It may have erupted millions of years later, tomorrow, or even a hundred years ago.

What's more, scientists are still arguing about the deflection of the rotation axis of the η star on the ship's base and disaster prevention...

Humans do not have much knowledge of this type of celestial body, and it is difficult to accurately predict the disasters it brings to human civilization.

After a long journey, the gamma ray explosion may destroy the entire ecosystem, but may not have much impact. I can't figure it out anyway.

The second challenge comes from KIC 8462852, Tabixing.

In the 21st century, humans have discovered this strange star, and its periodic light changes have attracted widespread attention from astronomers.

At that time, many scientists speculated that it was a nebula or other large celestial bodies that covered the star, which triggered its light change.

But!

Hundreds of years of observation have proved only one thing: its shading is increasing at a rate of 0.64 per thousand per ten years.

That is to say, if the maximum shading data ten years ago was 22.112%, then now it is 22.176%, without exception.

What does it mean?

It means that there is an artificial building near the star and it is under constant construction.

It has been going on for hundreds of years!

Dyson Ball, it is there. There will be no change due to human will.

This fact has caused great panic among the top leaders of civilization.

The distance of 1,400 light years is too far away for humans, but it is far from enough to smooth out this panic.

Any normal person knows what "Dyson Ball" means.

Compared with the civilization that can build Dyson Balls, human civilization is simply paramecium!

At that time, Professor Qi Yuanshan, the "father of nuclear fusion", wrote excitedly in his diary: "If there are no aliens, human beings will be destroyed by their own laziness!"

"... Just like the old days, the upcoming entertainment trend, non-toxic nerve drugs will inevitably destroy most of the enterprising spirit of mankind. Dyson's ball has been proven to be true, and human beings may be able to revive from erosive consumerism and capitalism, similar to the effect of the Cold War of the United States and the Soviet Union!"

"I have to say that humans have a good neighbor, and maybe there is hope, and luckily... it's so great!"
Chapter completed!