Xiao Yu began busy preparations, the design of the four large particle colliders in Huantianyuan was put on the agenda, and the site selection work of the base also began.

At this distance, with Xiao Yu's current scientific and technological means, it is enough to make quite accurate and detailed measurements of Tianyuan Si. The latest observations show that the Tianyuan galaxy and the solar system are quite similar, with only some details being different.

The Tianyuan 4 is about a billion years old, and it is still in the juvenile years of a star, and there are a large number of early star features here, and the Tianyuan 4 galaxy is like the sun when it was young.

Through the occultation method, Xiao Yu determined that Tianyuan 4 had one rocky planet and two gaseous planets. The nearest planet is a rocky planet, only 30 million kilometers away from Tianyuan 4, with a mass of 0.4 times that of Earth and about the size of Mars. The planet is gravitationally locked by the Celestial Courtyard and will always have only one side facing the main star.

The main base chosen by Xiao Yu is on this rocky planet. If you only consider the convenience of fuel access, it is most appropriate to build the base on the moon of the gaseous planet, but Xiao Yu has other considerations, so he still plans to build the main base on this planet.

Outside, about 50 million kilometers away from Tianyuan 4, is a spectacular asteroid belt. This asteroid belt is much larger than the asteroid belt of the solar system, and Xiao Yu estimates that the total mass of material here is about six times that of the earth.

It is uncertain whether a new planet will form here, after all, the initial physical quantities that can determine this result are too many and too messy, and Xiao Yu has no way to make an estimate.

400 million kilometers further away is a giant gas planet with 1.6 times the mass of Jupiter, which forms an orbital resonance relationship with the third planet of the Tianyuan four galaxies, with a ratio of three to two, that is, this gas planet orbits Tianyuan four times for three times, and the third planet orbits for two times.

Thirty million kilometers away from this giant gaseous planet is the third planet. It is also a gaseous planet, about five times the mass of the Earth and about nine times the size of the Earth. This suggests that the density of the third planet is much less than that of Earth. Xiao Yu believes that this should be an evolving gas planet.

The density of matter in the interstellar space of the Tianyuan Four Galaxy is about six times that of the interstellar space of the Solar System, which indicates that this third planet will continue to absorb all kinds of gases in the interstellar space, grow larger and larger, and eventually grow into a gaseous planet similar to Jupiter.

The first and second planets, because they are too close to Tianyuan IV, the material here has been blown away by the powerful star winds of Tianyuan IV, so they have lost the ability to continue to grow.

Three planets, along with countless asteroids and a young star, make up this vibrant galaxy.

Xiao Yu named the first planet Tianyuan A, and then, Tianyuan B and Tianyuan C.

"Tianyuan A will become my main base, I will build a huge scientific research institute and spaceship construction base on the back side of Tianyuan A, Tianyuan B will become my fuel base, it will provide me with an endless stream of fuel, Tianyuan four star systems, will become my new home, here...... It's heaven! ”

Xiao Yu thought happily.

There are still two hundred years left in the whole voyage.

In full anticipation, Xiao Yu spent one hundred and ninety years, and when he had ten years left to sail, Xiao Yu finally entered the scope of Tianyuan Si's true control.

The heliospherical roof of Tianyuan IV. The stellar wind emitted from Tianyuan 4 came to a standstill here. Beyond the heliopause is the world of interstellar radiation, and within the heliopause is the territory of Tianyuan IV.

Here, it is four or two hundred billion kilometers away from Tianyuan. Although Tianyuan IV is smaller than the Sun, because it is so young, its stellar activity is 30 times stronger than that of the Sun, and correspondingly, the distance between its heliospherical apex and its main star is 10 times greater than that of the Sun.

Here, for the first time, Xiao Yu directly detected high-energy charged particles from Tianyuan Si.

Somewhat curiously, the Celestial Four galaxies do not resemble the Kuiper Belt in the Solar System. Xiao Yu estimates that this may be due to its special composition of inner planets, whose gravitational engagement empties the material in this area.

This means that the number of observable comets in the four galaxies is much smaller than in the solar system.

It will take about ten years to complete these 200 billion kilometers. During these ten years, Xiao Yu watched with a joyful mood at the ever-increasing intensity of stellar winds. The stronger the stellar wind, the closer it is to Tianyuan IV.

Time passed slowly, and Xiao Yu was only three billion kilometers away from Tianyuan Four. This distance is roughly equivalent to the distance of Uranus from the Sun.

Here, Xiao Yu observed the gorgeous aurora at the poles of Tianyuan C for the first time. The magnetic field strength of Tianyuan C is five times that of the earth, and the stellar wind strength of Tianyuan 4 is thirty times that of the sun.

Xiao Yu manipulated the huge fleet and began to slow down, and twenty days later, Xiao Yu reached the Tianyuan C orbit. It just so happened that Tianyuan C happened to run not far from Xiao Yu. Looking at this small gaseous planet, the excitement in Xiao Yu's heart was beyond words.

A large number of probes were launched by Xiao Yu and entered the orbit of Huantianyuan C, and a steady stream of information was collected by Xiao Yu.

"I'm going to use Tianyuan C as a base to build a big fort." Xiao Yu thought a little hesitantly, "Whoever dares to invade my territory, I will beat it hard." ”

The theory of the dark universe has become a shadow in Xiao Yu's heart, in order to guard against the possible arrival of alien civilizations. Xiao Yu must improve his strength as much as possible to ensure that his scientific research can be carried out smoothly.

Sixteen days later, Xiao Yu crossed the Tianyuan B orbit. However, at this time, Tianyuan B happened to run to the back of Tianyuan 4, and Xiao Yu regretted not seeing the true face of Tianyuan B.

After another twenty days, Xiao Yu finally reached the Tianyuan A orbit.

Here, it is only 30 million kilometers away from Tianyuan 4, which is only about half the distance from Mercury to the Sun. The intensity of the radiation here is at least 70 times stronger than that of Mercury. However, thanks to Xiao Yu's early preparation of haode's high-power anti-jamming communication instruments, all the spaceships are still under Xiao Yu's control.

"What a strong distraction...... Hey, it's time to start working on long-range communications. Over-distance communication is not afraid of any interference. Also, if there is no over-distance communication, when I am on Tianyuan A, the fuel collection work at Tianyuan B and Tianyuan C can only be handed over to the program, which is really not at ease. ”

Xiao Yu thought silently and made up his mind.

Under the current theoretical framework, ultra-distance communication can only be achieved by quantum entanglement. A lot of research has been done on Earth, but there has been little progress, and no one is sure if there will be progress in the future.

The reason is very simple, although quantum entanglement is superluminal, it has an impact on the particles in place A, and another coherent particle in place B will be reflected immediately, but people can't detect what information is transmitted between this pair of interconnected quanta, and the corresponding key must be cooperated, that is, what impact does place A have on this particle and the observation results of place A, and the two phases cooperate to interpret the information, but the key can only be transmitted through traditional means, and it still cannot be regarded as superluminal speed.

However, Xiao Yu already had a faint speculation in his heart, perhaps, through some specific means, this restriction could be cleverly circumvented. Now, it's just a matter of waiting for a large number of shiyans to verify.

Looking at Tianyuan 4 at this distance, it has a diameter of five or six meters, and it is dazzling and cannot be seen directly. Not only is it impossible to look at directly, but this place is simply a sea of light, and the infinite amount of light carries a huge amount of energy gushing out, like a raging sea.

Tianyuan A faced Tianyuan Silai, like a sesame seed on a basketball. Tianyuan A has been gravitationally locked by Tianyuan 4, and will always only face Tianyuan 4 with one side, which brings Xiao Yu a certain convenience. With the big shield of Tianyuan A here, Xiao Yu can safely avoid the excessive radiation of Tianyuan Si on the sunny side of Tianyuan A, calmly build a base, and develop science and technology.

Xiao Yu had already slowed down the fleet to ninety-seven kilometers per second relative to Tianyuan A, which was only twenty kilometers per second relative to Tianyuan A. Xiao Yu is chasing Tianyuan A, and after catching up, Xiao Yu will land on Tianyuan A and start his own construction business.

Because it is too close to Tianyuan 4, the atmosphere of Tianyuan A has long been stripped away by the powerful stellar wind of Tianyuan 4, so it has no atmosphere and no moons.

The density of Tianyuan A is very large, like a solid iron ball, it has no geological activity, and the surface is full of craters, and the temperature of the side facing Tianyuan IV has reached 700 degrees Celsius, and the temperature of the side facing Tianyuan 4 is only minus 150 degrees, which is very similar to Titan.

There is no methane lake like the one on Titan, but at Xiao Yu's current speed, it only takes ten days to walk back and forth between Tianyuan A and Tianyuan B, and fuel collection is very convenient, and it doesn't matter if there is no methane lake.

After a full month passed, Xiao Yu finally caught up with Tianyuan A, and then, the three county-level spaceships entered the orbit around Tianyuan A with all the township-level spaceships and two hundred village-level spaceships, and the remaining six hundred village-level spaceships, carrying a large number of instruments and equipment, began the landing process.