"Zhao Qian, I have an important matter to ask you for!" After looking forward to it for many days, Jiqing finally saw Zhao Gan in a dream, if it was usual, he was actually a little afraid that Zhao Gan would look for him, because he had no clue about looking for Zhao Kun, and he had already secretly participated in the exchange between Renhe and human civilization without hiding from his father, but in the past few days, because of the dark rain, he really hoped to get Zhao Gan's help.

"Yes, no problem, how do I want to repay your help?" Zhao Qian paused for a moment, "I feel it, your state has been very unstable in the past few days, and I have been guided several times and have no way to communicate with you, what is the matter!" ”

No wonder Zhao Qian didn't look for himself for so long, it turned out that his recent sleep state was unstable, which affected Zhao Gan's contact with himself.

"Do you know what cosmic phenomena and can penetrate the Father of Kua, how do you describe it?" Ji Qing was a little unsure of Zhao Gan's way of understanding, "It can cause damage within the substance. ”

"I roughly understand what you mean, I can get the message you want to express in the thoughts of your activity, huh...... I see what you mean. ”

"How? Have it? "Jiqing is a little impatient, what happened recently made him feel the horror of this unknown starry sky for the first time, originally their generation of crew lived in a beautiful period, human beings came into contact with other cosmic civilizations for the first time, this civilization is stronger than humans, friendly, and more importantly, they are willing to communicate with human beings and pass on more advanced technology, although these technologies cannot be applied immediately by human beings because of the difference in life forms, but I believe that in the near future, Kuafu will be blessed with the wisdom of all human beings on the earth, You can fly farther into the starry sky, and even dominate the starry sky.

Jiqing's generation of crew members is in such a beautiful fairy tale in life, and has spent decades peacefully, but the universe once showed its contempt for ignorance, and not long after Renhe civilization left, he gave Kuafu a lesson in an unprecedented special way, so far, Jiqing has a feeling of waking up from a dream, it turns out that Kuafu has not been recognized by this small piece of cosmic space.

"The situation you express is very common, and there are many situations that can cause this phenomenon, but I don't know how to express my answer to you."

Jiqing understands what Zhao Qian means, how to make the other party understand the professional vocabulary or theory he expresses with two different forms of civilization and different basic knowledge systems, which is indeed a big problem. After all, the time of contact between Zhao Qian and Jiqing is too short, and the two sides have not had relatively in-depth exchanges, but they have simply talked a few times, and the time is also very short.

"Then since you can read my meaning through my thinking, in the simplest way, I say, you simply say yes or no, or close, words like that."

"I understand."

"There's no particular flaw in this space, like gravitational waves, or the faults in the space, the cracks, the great curvature distortions, or the like?"

"We have observed gravitational waves, but we have not met, and we have not found extreme cases such as faults and fissures, after all, it is a channel that we have walked on, and the safety is still very high, and the space there will be stable for a long time."

Sure enough, hearing Zhao Gan's explanation, Jiqing was a little sad, the channel that Renhe gave to Kuafu was the space they had explored, and it was very stable, otherwise according to the character shown by Renhe, Kuafu would not have been guided.

"However, there are still small curvature changes in space, after all, there is a nebula there, in which many low-density cores have been formed, and it is believed that a large planet may form in hundreds of millions of years. The mass of the stardust is now large, and it has an effect on the surrounding space, but this curvature of space should have little effect on Kuafu's voyage. ”

"Small curvature? Nebula? Jiqing was stunned for a moment, feeling that his brain couldn't turn around, how could there be a nebula near Kuafu? He carefully recalled that the star map near the Kuafu that he could see when he was awake, where did the nebula come from, and all directions looked at a clear starry sky, even on the radar, there was no imaginary nebula. Such an obvious celestial body, it is impossible for Kua Father to miss it, is he really dreaming this time?

"Has this nebula been here all along?"

Jiqing had no way to judge his current state for the time being, so he could only guess that this nebula had drifted from the distant universe not long after Renhe left, but due to technical reasons, Kuafu did not observe it.

"The position is moving, and the celestial bodies in space are moving, this is common sense, but this nebula is extremely slow, and now it is mainly affected by the gravitational pull of Tianyuan IV, and it is approaching that direction. Interestingly, its microscopic particle composition is different from Tianyuan IV and human star systems, this type of microscopic particles are very common in the universe and we are more familiar with them, so we did not stop to study its composition and origin when passing by. ”

"Microscopic particle composition is different?" Jiqing seems to realize something, the solar system is the birthplace of human beings, and all the scientific achievements of human beings are based on the observation and study of their own living places, and the microscopic particles in the solar system constitute the most familiar to human beings, and are different from the particle composition of the solar system and the four star systems near Tianyuan, which must be the field that human beings have not set foot in now.

"Is it dark matter?"

Dark matter and dark energy are one of the entire components of the entire universe, they are the general term for human beings who cannot understand matter and energy, and what form these substances and energy are, what are their composition, what are different from the characteristics of known matter, and even whether they really exist in the universe, human beings can be said to know nothing. The only clear evidence of their existence is that they produce a gravitational pull and an impact on the universe that is far greater than what is known about matter and energy. But who can guarantee that the effects of these artificial calculations are not the result of human ignorance?

According to human calculations, 5% of the matter and energy in the entire universe are known to humans and can be clearly proven, that is, they can be understood or observed by some method. In addition, 27% of matter and 68% of energy are incomprehensible and observable by humans, and can only be calculated based on known theories obtained by humans from the solar system.

Dark matter is more than five times the amount of matter known to mankind, and its existence was first proposed in the early 20th century and only came to attention in the 60s, according to the astronomers of the time using the theory of gravity, calculated the rotation and mass of galaxies.

According to the results of later research, mankind has a new understanding of dark matter, which is massive, invisible, hidden in galaxies, and the most amazing thing is that it does not interact with ordinary matter, or even other different types of dark matter. Among the four basic forces of the universe discovered by mankind, dark matter has only one gravitational effect, and as for the interaction of other mutual forces, human beings have no clue for the time being.

Zhao Qian was silent for a while, he should be trying to understand the human definition of dark matter, and said with some uncertainty: "According to the human definition of dark matter, the matter that makes up that nebula should be what humans call dark matter." So you can't see that stardust! ”

"Yes, we can't see it!"