Zhu Lei's trade fleet of the Ming Empire has been staying in this galaxy for several years, building the most basic defense system of this galaxy, and at the same time, the construction of various factories in this galaxy is also proceeding in an orderly manner.

Now the Ming Empire has a set of effective procedures in alien colonization, first transforming the planet so that the colonized planet is as close to the earth's environment as possible, so that human beings and even most of the creatures on the earth can survive on it unhindered, and at the same time began to establish the defense circle of the galaxy where the planet is located, and also started the construction of the most basic weapons and various heavy industry factories.

After the construction of the galaxy defense circle is basically completed, it will begin to further improve the defense facilities, make the defense capability of the defense circle more perfect, and start the construction of a complete industrial system at the same time, and finally when the environment of the colonized planet reaches a certain level, a different number of suspended cities will be established on the planet to start the real colonization of the planet.

In addition to building defense circles and various factories and transforming planets in this galaxy, Zhu Lei and the others are also collecting all the useful information in the Ocean of Light all the time, understanding all the useful information in the entire Ocean of Light, such as civilization, race, starry magnetic field, danger area, scientific and technological level, resource status, etc., and then use the computer to summarize and classify, and then store it in the information database of the spaceship for reference at any time.

Of course, most of this information that can be collected is superficial, after all, no civilization will put important information on it.

Even if it does, it will definitely be sent using the most difficult means to crack, although this may be very energy-intensive, but the possibility of leakage is much smaller.

Even in this Ocean of Light star field, there are many means that even the Ming Empire is very difficult to decipher, such as quantum communication, the Ming Empire is very difficult to decipher.

However, fortunately, there are not many civilizations in the entire Ocean of Light that can master quantum communication, so the Ming Empire can still decipher it with a little more time and energy.

After all, the current civilization level of the Ming Empire is one level higher than all the civilizations in the Ocean of Light. If you really want to crack this information, you can still do it, and there is no absolute thing about anything.

However, there is another means of communication in this ocean of light that the Ming Empire has not mastered here for so many years, and that is gravitational wave communication, although after so many years of exploration, the Ming Empire has a certain accumulation in gravitational wave technology.

But it has not yet been fully mastered, let alone more advanced technology, and in the information collected by the Ming Empire in this star field, gravitational wave communication technology has been mentioned many times, and even key technologies such as gravitational wave engines, and most of these technologies are unique technologies to light and dark civilizations.

Perhaps it is because the light and dark civilization is closer to the black hole in the center of this star field in the core area of the ocean of light, and it is more convenient to observe gravitational waves than other civilizations, which makes them more advantageous in gravitational wave technology.

If there is no specific information, if the Ming Empire wants to really break through the gravitational wave technology, the time it takes, according to the analysis of the scientists of the Ming Empire, it will take at least decades or even hundreds of years to break through, but if the Ming Empire is closer to the black hole in the center of the Ocean of Light and analyzes some black hole information, then the gravitational wave technology can easily break through.

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Just when the fleet of the Ming Empire was building the most basic industrial system of the defense system, a chase battle was going on at this time about ten light-years away from the twin galaxy, and both sides of the chase were fourth-level civilizations in the Ocean of Light, and they were among the top fourth-level civilizations in the entire Ocean of Light in terms of technology and territory.

The two civilizations are the Boulder Civilization and the Swan Civilization, among which the Swan Civilization although the number of spaceships is relatively small, but the overall structure of the spacecraft is very good, and the linearity of the scenery is also very good, these whole spaceships exude a variety of colorful lights, these spaceships are like huge swans when they fly in the universe.

And when the spacecraft is flying, the huge swan's wings are still waving softly, and from a distance, you can still see the light blue light behind the spacecraft after the wings are waved, and these rays are dragged far along the route of the spaceship, which is thousands of kilometers away, which is the unique space engine technology of their swan civilization.

Bionic strong magnetophoton engine, and the outer space of the spacecraft still exudes a little bit of fluctuations, in fact, this looks like space technology, but this is not real space technology, but a gravitational wave technology, and it is also a gravitational wave defense technology that most civilizations have mastered in this ocean of light, which is to use the power of gravity to refract energy ray attack, but although it also has some effect on physical attack defense, the defense is not strong.

But seriously, these spaceships are very dazzling, and if they are seen by those so-called perfectionist scientists in the solar system of the Ming Empire, there is a good chance that they will rush to imitate them.

However, the ship of this civilization is fleeing desperately at this time, and the direction of escape is the galaxy where the trade fleet of the Ming Empire is building a defense system.

The shipboard of the Boulder civilization is much larger than the spaceship of the Swan civilization, but their spaceship is obviously much rougher, and when they fly, they do not emit all kinds of dazzling light, nor do they have the same protective shield as space fluctuations like the Swan civilization.

In fact, although Zhu Lei and the others have detected the information of most of the civilizations in the entire Ocean of Light, and have done an understanding of all the civilizations above level four in the Ocean of Light, they have not made a specific classification, but in fact, the entire Ocean of Light can be roughly divided into four types of civilizations.

The first type of civilization is a racial civilization similar to the human race of the Ming Empire, this kind of civilization is called the five-color race in the entire ocean of light, this is because these races are very similar to the human race of the Ming Empire, although these races are large and small, and the forms are different.

But basically they all maintain the most basic form of human beings, for example, the others are exactly the same as humans, but the ears are like rabbits, and some have more tails, but no matter what, the people of the five-color race will not exceed three meters, and the general race is about one meter five to two meters, and some are smaller and cute.

As for why it is called the five-color race, this is because the blood color of these races is roughly divided into five colors, these five main colors are yellow, silver, blue, green, and purple, and the genetic structure of these five races is very similar, so the five races can even intermarry without hindrance, so in the entire ocean of light, these races are called the five-color race, and the most important thing for the five-color race is to focus on scientific and technological civilization, and there are also some cultivation civilizations.

The most powerful of all the five-color races is the totem civilization called the blue-blooded people, and in addition to the totem civilization, there are several powerful fourth-level civilizations, including the swan civilization.