The universe is so big that even if human beings have limited conquest of space, their understanding of the universe is still one-sided. In order to understand the universe, human beings have created head-scratching terms such as dimension, time, space, space-time, curvature, etc., as well as constants such as the speed of light and Planck time, and derived a series of theories that try to explain the universe.

Even so, the vast majority of human theories about the formation of the universe are based on assumptions. These assumptions are then counter-deduced through numerous observations. Many hypotheses were eventually turned out to be wrong, such as the once-popular aether theory, and some hypotheses were confirmed by a growing body of evidence, such as the Big Bang theory.

At least until today, there is not enough evidence to prove that the Big Bang theory is wrong.

But after today, it has been proven that there are some problems with the current set of theories. At least the estimation of the age of the universe is wrong. These galaxies that should not have been present have proven this, especially after a cursory calculation of the mass of these galaxies.

Even if these galaxies were the earliest galaxies to form at the beginning of the Big Bang, they should not be so massive. Although the mass of these galaxies is actually not large, although it is said to be ten or hundreds of times larger than the solar system, it is far from the Milky Way where the solar system is located.

According to current calculations, the mass of the Milky Way is trillions times that of the solar system. This is not an exact number, but it can only be done with current human technology. But if T03 really received the same light from 14.2 billion years ago, then the mass of these galaxies should not be so huge.

Unless the age of the universe is much older than human calculations, at least more than 16 billion years, then the error will be large.

That's why astronomers are surprised.

But no matter how surprised the astronomers on Earth were, probably not as surprised as Ning Xiao, who was watching the meteor shower on the Wugang.

Although he does not yet know the detection results of the deep space telescope, because at this time, the position of the spacecraft, almost on the line between the Earth and Mars, coupled with the ionization reaction caused by the meteor shower at the cosmic level, has completely cut off communication with the Earth.

This is also the reason why the Mars weight gain program was successful, and it only had time to send a text message to Earth. There was simply no time to send more information with the resource, but in this case, March actually received a message, not from Earth, but also an invitation message?

Well, at this time, Ning Xiao was no longer surprised, to be precise, shocked. Because this can only show one possibility, there is more than one intelligent civilization on Earth in this universe. What's even more terrifying is that they have been observing the Earth.

Because this timing is indeed too coincidental, it happened that the Kuafu successfully guided 271 to hit the node of Mars, and then received the news in March, which says a lot.

At this time, Lu Xiaoya had already felt Ning Xiao's emotional fluctuations, and asked in surprise, "What happened again?" Urgent news from the other side of the planet? ”

After all, she has been an old husband and wife for more than ten years, and Lu Xiaoya has long been accustomed to Ning Xiao's special ability to receive news. Ever since Ning Xiao told her about the wonderful use of biochips, Lu Xiaoya blamed everything unusual about Ning Xiao on science.

Anyway, as long as you accept the fact that your husband seems to be omnipotent at the scientific level, there won't be too many problems. Not to mention the bunch of secret things in the base, Lu Xiaoya didn't bother to ask.

"Whew...... There's no news on Earth, but something does happen. I've got to go back to the conning tower. Ning Xiao exhaled deeply and showed an apologetic smile.

Lu Xiaoya is used to this kind of smile.

Every time he worked overtime at the base and couldn't go home, Ning Xiao would laugh like this in his hologram.

"Hurry up, I'll stay here for a while, and then come back to me when you're done."

"Okay, it shouldn't be long." Ning Xiao replied, then calmly turned around and walked out of the room specially used for holographic simulation of meteor showers.

……

When he came to the control tower, Ning Xiao saw March lying on his seat, and for the first time, he felt that this cat's eyes could be very serious.

Of course, this can also be a delusion.

Theoretically, he doesn't think there will be too many human-like feelings in March. Except for the attachment to the original owner, but Ning Xiao hasn't figured out whether it is the setting of the backstage core, or a real data simulation.

"Are you sure it's an invitation from outside the solar system?"

"Meow, of course, because according to the coordinate system given in the message, it is about 130 billion light-years away from the solar system."

"The detectable diameter of the universe is only more than 90 billion."

"Meow, so it's a message from the undetectable universe."

Ning Xiao was silent, and then said, "Okay, show me the news." ”

"Meow ......"

Soon, the screen opposite Ning Xiao showed a message, which was expressed in the simplest Morse code. Above is the code received, and below is the automatic translation given by March: "Ning Xiao: The book is not exhaustive, meet in detail." ”

In addition, there is a complex series of numbers below, and from the characteristics of those symbols and numeric encodings, Ning Xiao can easily see that they are the codes used by the earth to locate and convert the medium space and the real space. This coordinate conversion system has been used many times in his paper, and he optimized it with March.

The shock was even stronger, because this news seemed to indicate that his hunch seemed to be correct, and the civilization of the earth was really being monitored.

After a moment of silence, Ning Xiao suddenly asked, "Didn't your former master receive a similar invitation?" ”

"Meow...... To be precise, I certainly didn't receive it until I entered the medium space alone and began to wander. I don't know if there will be any after that, after all, I can't exchange information across the universe. ”

Ning Xiao nodded and said, "Okay, then there are two possibilities, the first is to send an invitation...... Intelligent beings live only in our universe; Second, I did something different from your original owner. Which do you think? ”

"Meow...... Given the way the message is sent and the position given by the other party, the second possibility of computational simulation is more likely. ”

Ning Xiao's expression became more serious: "Then what is the difference between me and your original master?" ”

"Meow...... The biggest difference between you and the original owner is that you don't care much about some of the rules, so you're even more unscrupulous when it comes to lighting up the tech tree. For example, the original universe did not use planetary matter to transform the technology tree when lighting up the technology tree, and I think that the transformation of the planet is most likely the reason why you will receive the invitation.

Maybe you have been chosen by some intelligent life form that you have not met to represent the civilization of the Earth in the solar system, maybe this invitation letter represents an endorsement of this transformation method, of course, it may also be a kind of disapproval, and it is difficult to draw an accurate conclusion with insufficient information. ”

Ning Xiao closed his eyes and fell into deep thought.

Although the text content of this message is simple, the content of the coordinate system is very rich, and it only needs to be copied into the navigation system of the Kuafu Father, and it can be reached directly through the media space.

The other party even thoughtfully helped him choose several spatial transformation coordinates in the solar system.

The language is very concise, the language sent is very concise, and there are some artistic conceptions of ancient Chinese texts, but there is no specific time to go to the appointment.

In other words, the decision seemed to be still in his hands, but Ning Xiao felt that this was a sign of the other party's confidence enough.

But the communicator does have the right to be confident. Ning Xiao knows better than anyone how powerful it is to be able to control information. Since the other party can accurately transmit the information to March at a certain time, it is enough to show the strength of these unknown intelligence bodies on the other side of the earth information. Although Ning Xiao didn't know how the other party scanned the earth's information for the time being.

What's more, Ning Xiao has a reason why he must go.

Because he's already starting to be curious about everything behind this message.

All the motivation for his efforts over the years is not to remodel Mars itself, but to try to validate his ideas through these macroscopic modifications, and hope to find the answers to the three questions he asked in March in his lifetime. Now there seems to be a shortcut, and Ning Xiao feels that as long as he is willing to go to the appointment, when the meeting is detailed, he may be able to get an answer.

Getting some ultimate answers is not only his goal in life, but also the cat's goal in front of him.

"So, you want to go as soon as possible, right?"

"Meow ......"

"Don't worry, let me think about it, this time, do you think we can come back?"

"Meow...... Since the other party can have the ability to pass the message to me, they should also have the ability to pick you up. ”

"But what about time? Anyway, don't worry, give me some time, at least we have to go back to Earth, I have to send Xiaoya and the child back, and then explain some things. The Mars transformation plan must continue, and the precautions that should be taken must be done first, and we have to say goodbye to my father and uncle. The affairs of the base have to be arranged......"

Ning Xiao rarely began to nag, which shows that his emotions are also very messy at this time.

Of course, this is already calm.

After all, the meaning behind this simple message is not so simple, it is enough to prove that there are extraterrestrial intelligences in this universe that are more advanced than the development of Earth civilization, and they seem to know the existence of Earth, and even understand their language. Learn more about the solar system, such as access points in the system in dielectric space and normal space.

Some of these coordinates are unknown to even Ning Xiao.

If the news is released directly, it may really make countless people go crazy on the spot.

"Meow ......"

"Okay, okay, I know, two months, the current plan can't be done halfway, and I have to explain some things when I return to Earth, two months should be about the same, just because you use this time to make some modifications to the spaceship, this time there will be no auxiliary people, and you need to ensure the controllability...... Also, who can know the news that you think? ”

"Meow...... I think it should be strictly secrequent. The most fearful thing in human nature is often the unknown, and after knowing the truth, the more rational people are, the more likely they are to make decisions that go against common sense, and it is better not to tell anyone the real secret. ”

Ning Xiao nodded, he believed in March's judgment, and he had always believed it.

And he really didn't know who he could tell the news, even the closest people around him.

This time, he didn't know if he could come back, so he said it would only add to his troubles.

It's better to go directly under the pretext of scientific research. No one can control him anyway.

"One last question, so it's just the two of us on this trip?"

"Meow...... This is the perfect solution. ”

"If the other party has bad intentions?"

"Meow...... Don't you think that it is very meaningful if your life can be exchanged for the long-term peace and stability of the earth's civilization? ”

"Meow...... With all due respect, with the abilities shown by the other party, if those unknown beings really want to be detrimental to the earth, even if it destroys the entire solar system, it should not be difficult for them. ”

"Meow...... The technology of accurate information transmission spanning thousands of light years is extremely difficult and jumpy, and even if it has been realized, my core database cannot reverse how it was done, which is the backwardness of basic academic achievements. Or that the other party has the basic laws of the universe that we don't yet understand. ”

At this time, Ning Xiao had already calmed down.

To be honest, he did not have the consciousness of sacrificing for the sake of the entire earth civilization. But when it comes to his family, his lover and his children, there are some costs to be borne after all.

Not to mention that the purpose of this trip is to get some answers.

"So be it, and two months later, we'll set off. But don't worry, we have to do the work that needs to be done, and when this impact process is over, we will collect enough data and return to Earth. When you're ready, go to the meeting with the invitees. ”

"Meow...... Wise decision. ”

Ning Xiao could see that the kitten was excited. Well, to be honest, he also has a faint and irrepressible excitement in his heart, even if he knows that it may be dangerous, but who can refuse such a sci-fi journey?

……

After making a decision and returning to the holographic cabin, Lu Xiaoya glanced at Ning Xiao and asked, "What's the matter?" Been there for so long? ”

"Well, this time it's top secret!" Ning Xiao replied honestly.

"Top secret news!" Lu Xiaoya blinked, and then felt unhappy.

Hey, there are too many secrets in this family, and even the manuscript paper used by men to calculate can be linked to secrets, and it is collected regularly by someone every day. or collection, or destruction......

】

On top of that, she couldn't read the contents of the papers. has been hit a lot, and Lu Xiaoya really has no interest in these secrets, she feels that she must not understand. However, women's sixth sense is often very accurate: "Then are you going to go on a business trip soon after you go back this time?" ”

"Well, it's true that with some particular findings, it might take a year or two to do some long-term research remotely. Actually, I want to take you with me, but this trip also shows that you are still not used to life on the ship. And this time the research task is even more boring. Ning Xiao replied.

Lu Xiaoya nodded thoughtfully, life on the ship is indeed very bad, so she gave a very intimate suggestion: "If you want to sail far, I suggest that you should bring enough psychologists on the ship to relieve your emotions regularly......