In a void in the solar system, the Kuafu spacecraft is flying rapidly in the void, with a speed of more than 200 kilometers per second. This speed has surpassed the fastest historical record in human history, and its speed is still
It's constantly soaring.
But the void is too vast. Even at a speed of hundreds of kilometers per second, in the boundless void, the Kuafu spacecraft still seems to be still at the origin, as if it is always at one point without any movement.
The changes, not to mention the universe, the solar system are too huge.
In the Kuafu spacecraft, everyone is lying on their own space chairs, using the virtual watches they carry with them to play games in the virtual world, chat with relatives and friends, and feel the effects of the acceleration of the spacecraft.
A strong push-back feeling.
The engine of the Kuafu spacecraft has a powerful thrust of 800 million tons. The mass of the spacecraft itself is only one million tons. Even if all the things in the spacecraft are included, its mass is only more than 2 million tons.
This mass is simply insignificant compared to the engine's 800-million-ton thrust.
"Accelerate~Accelerate~"
The speed of the spacecraft is still soaring, but in order to take into account the pressure resistance of the crew on the spacecraft, the acceleration process of the spacecraft is not too fast, it is a continuous acceleration process.
The distance required for this scientific expedition around the solar system is too far. Without sufficient speed, the spacecraft would not even know how long it would take to complete the scientific expedition.
The earth gradually becomes smaller in the field of vision, and finally disappears slowly. With the naked eye, no trace of the earth can be seen at all. According to the calculations and planning of scientists.
The first stop of the Kuafu spacecraft is Mars, heading to Mars for investigation.
Mars and the Earth have many, many similarities. They both have atmospheres, their revolution speeds are similar, their autobiographical speeds only differ by 41 minutes, and the temperature difference on the surface of Mars is not too big. Of course, this is compared to that in the solar system.
As for other planets.
Furthermore, Mars, like the Earth, is located in what scientists consider the habitable zone in the solar system. The so-called habitable zone is an area that scientists believe is suitable for habitation only within a certain range where life is possible.
For example, in the solar system, the habitable zone refers to the range of the four planets: Mars, Earth, Venus, and Mercury. Within this range, because it is closer to the sun, there is sufficient light, and the temperature is not too cold, making it suitable for the birth and reproduction of life.
.
Once it exceeds this range, because it is too far away from the sun, the light is not available, and the temperature is very low, it is impossible for life to breed and reproduce.
Therefore, taking the asteroid belt as a boundary, the area within it can also be called the inner circle of the solar system, and the area outside it can be called the outer circle of the solar system.
Because Mars has so many similarities with the Earth, it has always been considered by scientists as the most likely planet for interstellar immigration. There are also many science fiction movies about Mars immigration, Mars transformation, etc.
.
Moreover, through the analysis of everything currently available, scientists have inferred that Mars may have given birth to very prosperous life like the Earth in history, but later, for unknown reasons, Mars slowly withered and eventually became
It became a dead planet.
Scientists really want to go to Mars to investigate, search for Martian life, explore traces of life on Mars, and also investigate whether Mars can potentially become a planet for human immigration.
Of course, if there was really life on Mars, we can also find out the reasons for the demise of life on Mars through the investigation of Mars. We can also check to what extent the life on Mars evolved when life on Mars flourished, and whether advanced life was born.
The ending of advanced life is anything.
There are too many things waiting for scientists to explore and discover.
So when the figure of Mars appeared in everyone's field of vision on the Kuafu spacecraft, all the scientists on board the spacecraft became excited.
The Kuafu spacecraft is getting closer and closer to Mars, and its speed is slowly decreasing. The gravity of Mars is only about 40% of the Earth's. This means that if the Kuafu spacecraft wants to be captured by the gravity of Mars,
The speed must be reduced to a low enough level.
"It's hard to imagine how prosperous Mars would be if it had ever had life."
Long Zhankong began to observe Mars from a distance through the telescope on the spacecraft.
Unlike the Earth, which is a blue gem, Mars is a red-yellow planet. Its atmosphere is very thin, only about 1% of the Earth's atmosphere, so the surface of Mars can be clearly seen in the sky.
It is a very desolate world, dominated by red.
"Even if there was life in the past, we don't know how many billions of years ago it happened. The entire solar system has a history of 4.6 billion years. In such a long time, the history we humans know now is simply insignificant."
Next to Long Zhankong, Huang Zhibin was also constantly observing the red planet in the void. As a cosmic astronomer, he also had a strong interest in the history, evolution and development of the solar system.
In another part of the spacecraft, in the simulated ecological area, Liu Daoming and Li Jingxuan, who are also graduates of the first batch of biological science majors from Galaxy University of Science and Technology, are studying the growth of plants in a weightless environment while also discussing life on Mars.
"In a weightless environment, plant genes mutate very frequently, which has a greater impact on animals. In space, almost all of these mice have lost the ability to reproduce the next generation. It is estimated that in a weightless environment, the impact on animals is even greater.
The secretion system, genetic system, etc. in the animal body have had an impact."
Liu Daoming carefully observed the plants and animals in the simulated ecological zone. After his long-term observation and research in space, he also discovered that the weightless environment has a great impact on plants and animals. Animals in space will
Very restless, difficult to adapt to, often without eating or drinking.
"Stop talking about this, do you think there will be life on Mars?"
"There is water at the North and South Pole of Mars. If there is water, it is very likely that life can be born, especially since the environment of Mars is relatively mild. I estimate that life must be born under the glaciers of the South Pole and South Pole of Mars.
"
Li Jingxuan looked outside the window, and saw a red planet standing quietly in the void. Scientists who study biology are obsessed with finding the origin of life.
Just as astronomical scientists want to figure out the origin and evolution of the universe, and how big this universe is, biological scientists are also looking for the origin of life, and want to figure out how far life will evolve in the future.
"As for the origin of life, there have always been two views. One is the idealist view, which believes that life and all things are created by the so-called gods; the other is the materialist view, which evolved with the continuous development of modern science and technology.
It appears that life on earth was accidentally produced by meteorites from outer space or by chemical reactions on the earth itself."
"I will not talk about the idealistic point of view. The microscopic point of view is deduced based on the existing biological science and technology, especially Darwin's theory of evolution, coupled with the emergence of genetic technology, almost all living things will be lost if they go to the source to trace and explore.
You can trace back to the most original and simple life."
"So now scientists basically believe that life is a comprehensive reaction of chemistry, physics, etc., where different molecules interact with each other, and the mixture produces original organic molecules containing DNA. DNA has two characteristics: first, it can produce amino acids;
Second, it can replicate itself. These two characteristics of DNA are also the basic characteristics of bacterial organisms, and bacteria are the simplest living organisms in the world of life and are also the oldest fossils we can find."
When it comes to the origin of life, Liu Daoming suddenly became energetic. As a biological scientist, he has been thinking hard about the very serious issue of the origin of life.
However, the history of the earth has been billions of years, and the history of life is also very long. What happened in the long years measured in hundreds of millions of years can only be studied and inferred through some fossils in modern times, but if you want to
Tracing the source is very difficult.
Although life is also composed of various molecules, various things in the body of life are dead when taken alone, but when combined together, they become life, which is very magical!
You can imagine that these substances in the human body are very common in nature, but after being combined, humans, this magical life, were born.
"The birth of life may not necessarily be related to water, but our current understanding believes that without water, there would be no life. However, there have been many assumptions in science fiction movies and science fiction, such as carbon-based life, silicon-based life,
Energy body life, mechanical life, etc.”
"The universe is too big, and what we know now is too little, too little. We are now looking at the sky from a well."
"A planet with water does not necessarily have life, and a planet without water does not necessarily have life. I think life may exist widely in the universe, and maybe life can be found on Mars."
Liu Daoming put down his work, came to the window of the spacecraft, and looked at the planet in the void. Although it was not as moving as the earth, it exuded an intoxicating halo of life.
But at this time, Liu Daoming could not wait to fly to Mars immediately to search for traces of life. Human beings are too lonely. No extraterrestrial life has been discovered so far, so that sometimes humans sit in a well and look at the sky.
It is said that human beings are the only life in this universe.
ps: Are there aliens? Everyone can say it, and it must be well-founded~