The so-called heliosphere is a big bubble blown by the sun in the universe, and the heliosphere is the edge of this bubble. The several major planets that humans have discovered are all within the scope of the heliosphere. The sun generously protects her.
The people of the United States have used their own radiation activities to carve out an area of their own in the vast space of the universe. In the past, this was a safe haven for human beings. Without the existence of the solar circle, all kinds of terrifying things in the universe would
The burst of rays and energy blast will cause no grass to grow on the earth, making it impossible for any life to survive.
Now, this is also a safe haven for Xiao Yu. After entering the solar circle, Xiao Yu withdrew from the curvature voyage and started to move forward in a conventional way. Here, Xiao Yu once again saw what he had left a hundred thousand years ago.
traces below.
"The Tomb of Seven Billion Humans, Xiao Yuli."
This tombstone is still moving quietly around the sun in its own orbit. The low-power candle using nuclear energy as its energy source is still emitting a faint light, illuminating this line of text. Its design life is not that long.
, but just like the Curiosity rover launched by humans in the Earth era to Mars, this candle has worked far beyond its designed life.
The design life of the Curiosity Mars rover was only a few months, but it worked for several years. It was still roaming on Mars until the destruction of the Earth. If the big event of the Jupiter-Moon collision had not happened, it would have been very
You may have to continue working.
"I have returned to the place where I was born and raised, back to the human cemetery." Xiao Yu thought silently. After staying here for a while, the Hope spacecraft began to move forward.
Xiao Yu first visited Neptune. Pluto and Uranus were on the other side of the sun at the moment. So Xiao Yu did not see them for the time being. Looking at Neptune, which is as blue as the sea, some distant memories are gradually being opened.
Xiao Yu did not stay here for too long, and did not even observe Saturn and Jupiter in detail, although one of Xiao Yu's main goals was to stay at the construction base on Titan. Xiao Yu quickly passed through these places
, passed through the asteroid belt, which is as empty as the rest of the universe, and reached Mars.
Mars is still the same as when he left. One hundred thousand years of long time have not brought any obvious changes to Mars, except that there are more meteorite impact craters on it. Mars is still the same as before, with yellow sand all over the sky.
There was an air of coldness, deathly silence, and desolation in between.
In fact, every planet that Xiao Yu saw along the way had many traces of impact. Even gaseous planets like Neptune were not spared. Xiao Yu still found many dark red impact spots on it.
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Extremely high energy bursts and temperatures will cause changes in the elemental composition of the area, and differences in temperature will also cause this phenomenon. This means changes in color. And these color changes express what happened in the past in another way
came out. By analyzing the size of these dark red spots and the elemental composition in the area, Xiao Yu can even deduce the size of the asteroid that hit this area.
There is no doubt that these asteroids all come from the orbit of the Earth. The explosion of the Earth has a comprehensive and far-reaching impact on the entire solar system. Frequent asteroid impacts will last for at least hundreds of millions of years. It is during this period of time that
The solar system will form a new balance.
Xiao Yu stayed in the orbit of Mars for a longer time. Xiao Yu hoped to find some traces of life on Mars. Even elementary traces of life would be good. This is entirely possible. The explosion of the earth is certainly a
It is a bad thing, but in some aspects, it also has some positive aspects. The earth is full of life, whether in the vast ocean or the sky. In the mountains or jungles, in caves or deserts. The earth is covered with life everywhere. And
After the Earth explodes, all these life forms may not necessarily be killed. It is likely that some species with tenacious vitality will survive. In this case, the Earth will transform into a huge life seeder, carrying the seeds of life on Earth.
The fragments will embark on a long interstellar voyage, sailing with the wind like a dandelion. Titan, Ganymede, Triton, Venus, Mars, these planets may become the second home of life on earth.
But Xiao Yu was disappointed. During these 100,000 years, Mars has undoubtedly withstood hundreds of millions of Earth debris impacts, but there is still no sign of life on Mars. It seems that the seeds from the Earth have not
Able to take root on Mars. This result made Xiao Yu a little disappointed.
Beyond the orbit of Mars, the original Earth orbit is ahead. Of course, there is no trace of the Earth, replaced by a ring-shaped cluster of asteroids. The evaporation of gas has not stopped, and many asteroids still have long trails behind them.
Tail. For example, after the Earth explodes, the sea water will condense into an icy asteroid. When it is blocked by other debris and not exposed to the sun, it will maintain a solid form. However, if the orbit changes, it will come from the sun.
When light can directly hit its surface, the water will evaporate quickly and float backward under the action of light pressure and high-energy particles, becoming a tail.
This is the comet.
The tails of countless comets completely cover this area, so that the sun is a bit hazy when viewed from here. But Xiao Yu knows that this scene will not last long. On an astronomical scale, it can only exist for a very short time. After all,
, the total amount of evaporable materials is limited. When they are completely evaporated by the sun, this place will become an ordinary asteroid belt, just a little denser, and there will be no other special features.
The Hope spacecraft shuttles among the dense asteroid communities. Traces of certain Earth era can still be seen on many asteroids, such as some special lime structures - which come from the remains of some buildings in the Earth era, some
These special calcium phosphate structures come from the bones of large creatures from the Earth's time.
There was a strange emotion brewing in Xiao Yu's heart.
During the long journey, Xiao Yu discovered a somewhat strange phenomenon. There are some special red colors on some asteroids containing water, and these red colors are appearing and disappearing according to certain rules. Specifically,
, that is, when these places are illuminated by the sun, water vapor begins to evaporate in large quantities, and these red colors will appear quickly. When these places are blocked by other asteroids and prevent them from receiving sunlight, these red colors will quickly disappear.
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This phenomenon aroused Xiao Yu's interest. Xiao Yu began to approach an asteroid and observe these red colors up close. Xiao Yu controlled the Hope spacecraft to push away several asteroids blocking it, allowing this area to receive
When exposed to sunlight, a large amount of water vapor emerged from the asteroid almost immediately, and the hidden red color began to appear quickly.
Xiao Yu controlled the Hope spacecraft to block part of the sunlight shining here. Immediately, the red under the shadow began to disappear, and in the area next to it that was still under direct sunlight, the red part began to increase. It seemed that the red in the shadow area was originally
The material moved to the area exposed to direct sunlight.
"This is a kind of life." Xiao Yu thought silently, "It has a strong phototaxis and thermotaxis. When there is sunlight, they will quickly become active. If there is no sunlight, they will quickly enter a kind of life.
In a state similar to hibernation, to resist the cold in the universe."
As the Hope spacecraft gets closer and closer, Xiao Yu discovers more and more details about this life. Xiao Yu discovers that this is an algae-like creature that seems to be a plant, but it also has animals.
rapid response mechanism.
Xiao Yu has been silently observing here, understanding everything about this creature, watching them go from silent to active, and then from active to silent. Chasing the sun is their only mission. Where there is sunshine, there is energy, and the sun will melt water.
Ice releases the rich nutrients frozen in the water ice and mixes them with the water vapor. Once the water vapor appears, it means the arrival of food.
"The water ice content on an asteroid is limited. When the water ice is consumed, how will they survive? They don't seem to have the ability to migrate between different asteroids." Xiao Yu thought, "
And under such circumstances, species that cannot migrate between different asteroids are not qualified to survive."
They are not real animals. They have no feet and cannot travel between different asteroids. And even if they have feet, the distance between planets is not something they can cross. Most importantly, this kind of creature relies on water ice to survive.
, they will die immediately without water ice. And there is no water ice in the universe.
Xiao Yu was observing here. Suddenly, another asteroid broke in and suddenly hit this asteroid. As the impact occurred, a large amount of debris immediately sputtered out. These sputtered out
The materials include rocks and ice, and naturally there are red algae-like creatures that live in the ice.
These sputtered materials travel around here, some hit other asteroids, and some travel through space. But Xiao Yu knows that based on the current material density of the Earth’s asteroid belt, they
It is unlikely that they will break out of this range, and they will eventually fall on other asteroids.
Looking at the small stones and ice cubes that were splashed out like a goddess scattering flowers, Xiao Yu suddenly understood.