The dark universe, the beautiful sea of stars, there are countless pearls scattered, and the most brilliant one is probably human civilization.

Since Mars orbits the far side of the Sun, it cannot be used as a gravitational springboard to increase its speed. But luckily, the Voyage can get gravitational acceleration through the three stars of Jupiter, Saturn, and Neptune, so counting the acceleration and deceleration time, at a cruising speed of 15,000 km/s, it will take only about 6 days to reach the Kuiper XI Institute, which is about 42 AU (42 astronomical units, about 6283110540 kilometers) from Earth, and then meet up with the experts there to explore the mysteries of the space rift together.

Soon we will pass through the asteroid belt, which is an empty but dense pure land, where there are about 500,000 asteroids, but they are distributed in a huge space, like grains of sand into the sea, without a little luck, you can't touch it at all. But there are a few cobblestones in the sand, the largest of which is a dwarf planet, Ceres, which has climbed several industrial cities and begun to provide nutrients for human civilization. Several other larger asteroids, such as Vesta and Marriage, have also begun to develop, and the asteroid belt has begun its glorious mission.

The formation of the asteroid belt is no longer a big mystery, and it has become a key knowledge in the second year of junior high school astronomy teaching. It is now mainly thought that the objects of the asteroid belt originated from a group of stars (the precursors of planets smaller than planets) left over from the formation of the Sun. However, the gravitational pull of Jupiter and Mars prevented these stars from forming planets, causing many stars to collide with each other and form many debris and debris.

Of course, there are still people who insist on the theory of planetary explosions, believing that these debris were formed by the explosion of a planet for some reason, and according to the law of conservation of angular momentum, these debris will remain in its original orbit, and after hundreds of millions of years of evolution, it has become the current asteroid belt.

Some people even believe that the planet was shattered by an alien civilization, and this view is mostly adopted in science fiction novels.

Soon, the spacecraft sailed out of the asteroid belt and crossed Jupiter, at this time the cold fusion engine was turned off and in standby mode, and the spacecraft successfully entered the cruising state.

Compared to the asteroid belt, Jupiter is much more lively here. Due to the high cost of mining liquid metal hydrogen deep into the interior of Jupiter, a large number of energy companies choose to mine in the surface layer, of course, there are also scientific expeditions in the depths of Jupiter, such as the human Jupiter deep diving program, various scientific expeditions, scientific research institutes are proud of the depth of diving. In addition, there are industrial cities and living cities on the four planets of Galileo (Europa, II, III, and IV), and there are also a large number of famous universities that attract high school students from planets such as Earth.

After admiring the beauty of Jupiter's Great Red Spot and the alternating light and dark bands, the Voyage soon reached Saturn, a gaseous planet that is favored by mankind like his brother Jupiter, and Titan, one of the most developed moons in the solar system. Here you will find the University of Human Astronomy and the Federal University of High Energy Physics, which are among the best universities in the Federation of Mankind and are blessed with the perfect environment to observe the starry sky or conduct physics experiments.

Looking at the sun here, it's probably just a small disk, about one hundredth of the area seen on Earth. And the people of Titan don't need the harsh sun, for them, the huge "moon" with its fascinating rings of Saturn is certainly more beautiful than an old sun.

The speed of the Voyage increased slightly, shooting over the giant planet like a meteor, and the rest of it was in full view. The starry sky was exceptionally clear, the sky was full of pearls inlaid with a ribbon, and looking forward, without the light of the sun, all light was like the last ray of light in the darkness, and those insignificant rays of light seemed to be crumbling and swallowed up by the dark universe.

Neptune doesn't have much to look at, the slightly flattened blue planet doesn't have much human footprint, and at most there are a lot of research institutes on his moon. Such a cold planet must be a dead silence, not to mention that it is also a sea of storms, Neptune has the strongest wind in the solar system, wind speed up to 2100/h, compared to any typhoon on the earth, is just a small spiral on the ground.

The Voyage continued to move forward, quickly leaving Neptune behind, there were no more large objects ahead, the Sun was just a big bright spot here, and the Voyage seemed to be getting closer and closer to its destination.

"Slow down."

It was less than 0.2AU away from its destination, when the cold fusion energy engine roared again, and its blue tail light was exceptionally bright in the darkness, like a meteor, piercing the dead silence.

After several sirens, the Yuanhang entered a steady deceleration phase, and the entire deceleration was controlled by the AI automatic response system, which is a way to save fusion fuel, and can reduce the speed to 100 km/s at a distance of 20,000 kilometers from the Kuiper 11 Institute, and then land steadily.

After a while, everyone could feel the hull shake violently, and then it shook incessantly, and a rapid siren sound pulled the crew back to reality immersed in the virtual world.

"Woo......"

Self-test mode startup ......

"The Yuanhang suffered an unknown blow, and the electromagnetic protective layer was seriously damaged, with a damage rate of 85.3%. The particle flow protective layer was slightly damaged, with a damage rate of 12.3%. ”

"The load of the whole ship is 89.7%."

"The cold fusion reactor is normal, the engine is normal, the energy interface is normal, the fire system is normal, the armor is normal."

"Intensify the defense against particle flow. The thickness of the particle flow layer has been increased to 500 meters, and the density of the particle layer has increased by 50 percent. ”

"Alert, a large number of energy vortices have been discovered, and the hull will be subject to continuous blows."

"Alert, unable to determine the source of the attack......"

Alert ......

"What's going on, there is nothing wrong with the AI system, but why can't we confirm the specific cause of the attack on the ship's hull." Hans quickly retrieved the relevant data, looked at the strange models, his face changed, and he said anxiously.

Liu Wei quickly flicked a few buttons, called up the nearby radar map, four-dimensional space map, optical live map, and energy distribution map, and while frowning and carefully observing the information, he said: "The specific situation of the attack on the Yuanhang still needs to be further analyzed, first ask for tactical guidance from the earth base, and always be ready to exit the AI automatic response mode and conduct manual exercises."

"Yes!" Hans gripped the railing of the deputy podium and replied.

Although humanity has been in a state of peace for a long time, the UNA special forces have quickly maintained their composure, calmly stuck to their posts, and remained unmoved.

First mate Jimmy calmly debugged the hologram, and he said solemnly: "Director, the results are out, you look at this four-dimensional space map, according to the feedback from the passive gravitational wave detection system, we seem to be stuck in a group of spatial rifts."

Before the words fell, everyone moved their eyes to the four-dimensional space map, and the crew found that the book of time and space seemed to have been poked with a pencil and a large number of gravitational wave blind spots. In this area, there are many signs of depression, as if the paper has been crushed by many invisible iron balls.

Liu Wei touched his chin and asked thoughtfully: "There are many areas nearby with great spatial curvature, and there are even many blind spots for gravitational waves, so why aren't our warships pulled into the space cracks by such a great force?"

Jimmy shook his head and said, "I don't know very well, this needs to be explained by a professional physicist." But these spatial cracks radiate enormous amounts of energy to the surroundings, and calculations based on the Stefan-Boltzmann law (a formula for the energy density of an absolute blackbody radiated to the fourth power of temperature) would give a very unscientific answer – unless there are many small neutron stars or white dwarfs there. Besides, how can a space hole have a temperature? As we all know, temperature is a measure of the intensity of the thermal motion of a particle, but there may not even be a particle there, how can there be a temperature? Unless, perhaps, this phenomenon can be deduced from a formula for calculating space and energy. ”

"The point is that these spatial cracks are constantly changing, so I recommend exiting the AI automatic response mode and doing hand exercises."

Liu Wei nodded, and he suddenly said sharply: "I order: exit the AI automatic response mode and perform hand exercises!" Hans, Jimmy and I are in action, ready to take on the rampaging rift. ”