"Holy!" Veterinarian almost jumped in the airspace of a few hundred light-years? With his poor imagination, he didn't even dare to think about the distance of a light year, let alone a few hundred light years?

"I'll too!" Zhou Kuang rolled his eyelids and spread his hands helplessly, "It is said that the harsher the environment, the stronger the evolution of creatures, and the outer bone people were forced to leave their homes, maybe they were not like this at the beginning." Perhaps, in order to adapt to the cosmic environment during the long escape, the genes of the entire race were modified. ”

The veterinarian looked sideways: "This is too ruthless, isn't it?" How do you change yourself to look like this? ”

According to Zhou Kuang's statement, maybe the outer bone man turned out to be similar to a human being, and he could get such a heavy hand...... Outsiders are so cruel to themselves, let alone outsiders?

"This is just a guess I didn't have to do anything, not the result of research." Zhou Kuang smiled slightly, "I also have some guesses about this kind of alien spaceship." ”

The veterinarian looked at the juveniles hesitantly: "Guess how they evolved?" ”

"That's right!" Zhou Kuang snapped his fingers, "At present, there is no evidence that living beings can directly arise and evolve in the universe, and the early life matter is too fragile to exist for a long time under harsh cosmic conditions. So, we can be sure that organisms must have to arise in an environment similar to Earth, at least in an environment with liquid water like Europa. ”

"And then?" The veterinarian listened a little intrigued, and quickly asked.

"In the beginning, living things were very simple, and over time, they evolved more and more complex and advanced, just like the history of biological evolution on Earth. If there had not been a natural disaster such as the extinction of the dinosaurs, and there had not been the evolution of destructive intelligent creatures such as humans, then the creatures on the planet would have continued to evolve. ”

Zhou Kuang paused, and then continued: "I believe you also know that the age of the earth is 4.5 billion years, and the age of the emergence of organisms can be traced back to the Proterozoic period 2.4 billion years ago, but the appearance of a large number of organisms began in the Cambrian period of the Paleozoic Era 570 million years ago. The sun can still be stable for billions of years, if ...... What happens if the sun's settling time is halved? ”

The veterinarian suddenly realized.

The stability of the sun is fundamental to the prosperity and evolution of life on earth, and if there is a problem with the sun, the earth will be most directly affected.

"In about five billion years, the Sun will enter the red giant phase, and its expansion will eventually engulf the Earth." Zhou Kuang continued, "In about three billion years, the Earth will become as hot as Venus today, and in another four billion years, the Earth will eventually become a charred and black planet." ”

A scorched earth? Maybe not even the scorched earth, only the crystallized surface left behind by the high temperature.

The veterinarian thought.

He is a commando and has a very intuitive understanding of weapons of mass destruction, and the heat of the sun is no worse than that of nuclear weapons, so there is no problem in crystallizing the earth's surface.

Perhaps by that time, the Earth will be ignited by the sun's heat, and eventually the entire surface will vaporize, leaving only a charred, inconspicuous core.

Finding that the veterinarian's expression was wrong, Zhou Kuang smiled slightly: "Don't worry, at least for now, the sun is still very stable." The astronomical community has not yet studied how long it will take for the Sun to swallow the Earth, and the expansion of the Sun may affect its gravitational pull, and the Earth may fly to its current position on Mars. Everything is unknown, and the only thing that is certain is that this process will not happen overnight. ”

"I don't really understand." The veterinarian said.

Zhou Kuang explained: "To put it simply, the rapid development of life on the earth is a matter of 570 million years, even if the sun enters its old age, three billion years is long enough for the evolution of life, if at that time, there is still life on the earth, whether it will eventually evolve strong cosmic creatures in a harsh environment, it is also unknown." ”

The veterinarian looked embarrassed: "I never thought about these things, it's really ...... It's too far away. ”

"Far away?" Zhou Kuang whispered as if in a dream, "I don't think so. ”

"Billions of years from now, isn't it not far away?" The veterinarian subconsciously asked.

"Maybe." Zhou Kuang said, "A long time ago, it was discovered that the solar system is an organic whole centered on the sun, and sunspots entering the active period or the solar wind will cause drastic changes in the earth's magnetic field. ”

"For example, in the Carrington event of 1859, the British astronomer Carrington suddenly discovered two small bright spots on the sun when he was studying sunspots. A few minutes later, the Greenwich Observatory measured a drastic change in the strength of the geomagnetic field, and 18 hours later, the hands of the geomagnetometer jumped out of the scale due to the super-magnetic intensity. At the same time, telegraph offices everywhere reported that their machines were flashing sparks and even the wires were melting. That night, the colorful Northern Lights spread all the way to Cuba and Hawaii. ”

"There have been many similar events in history, but the Carrington event is undoubtedly the strongest solar storm ever recorded on Earth."

Zhou Kuang said these words in one breath, as if a new world had opened up in front of the veterinarian's eyes, and he said a little overwhelmed: "I have never heard of these things, let alone thought about them. ”

"Really? You are not the only one who has not thought about it, even in the last century, people's lives are only a few decades, and the average life expectancy is more than 100 is a matter of this century, and life is short. Zhou Kuang smiled, "Think about it, the history of human civilization is only more than 5,000 years, and the time for human beings to discover electricity and magnetism and study and use them is only a few centuries. ”

"Moreover, the 5,000-year history of human civilization is as short as a white horse passing through a gap for tens of millions or even hundreds of millions of years of biological evolution. It is because the sun's influence on the Earth is so profound that some have speculated that the extinction of the dinosaurs was due to a super-strong solar activity, not some asteroid hitting the Earth. ”

The veterinarian was dumbfounded, he didn't know about the Carrington incident, but he had a vague idea and a clear understanding of the relationship between the sun and the earth.

Zhou Kuang still did not give up, and continued: "Although the sun is the mother of all things on the earth, it is also a sword of destruction that always hangs over the heads of all living beings. Humanity coincided with the 'golden age' of the planet. The stable sun and the equally stable earth have given mankind sufficient time to develop, and at the current rate of scientific and technological development of mankind, it will not be long before mankind will have the ability to migrate to the universe on a large scale. At that time, humanity will leave the solar system and go to habitable planets in the depths of the universe, where they will branch out, and even if the earth is destroyed, humanity will not be extinct. ”

"Only by immigrating to the universe can we ensure the eternal survival of the human race." Zhou Kuang summed up later, "Okay, I didn't expect that I couldn't close my mouth as soon as I said it, don't say it, let's go, let's go to the laboratory." ”

The flesh on the veterinarian's cheek twitched vigorously, and only then did he enter the hall and say so much, such a large laboratory, really walked up again, to what extent did he have to say this?