When all the spaceships of the fleet passed through the parade channel, all the warships began to accelerate, but they did not drive to the highest speed, after all, the spacecraft is still in the solar system, and there are many private spaceships in the entire solar system, so in order to avoid accidents, when the speed of the spacecraft reaches one percent of the speed of light, it will no longer accelerate, because in the solar system this speed is fast enough, if it is faster in the solar system, it will be too late to brake in case of an accident.

Although the fleet led by Zhu Lei has just set out, the human beings on the earth have begun to look forward to Zhu Lei's safe return this time, after all, since mankind entered the interstellar age, the fleet led by Zhu Lei has defeated and destroyed an alien civilization, so in everyone's subconscious, the fleet led by Zhu Lei will not fail, it can be said that the expectations of the entire human race for Zhu Lei are very high.

The 200,000 warships led by Zhu Lei, more than 200 million people are heading towards the vast space, and the mainland of the Shan Empire is not idle at this time because of Zhu Lei's fleet, and the human Mars program is still in progress, according to computer simulations, Mars will be able to accept the first batch of immigrants in about ten years, because in about ten years, the first suspended city built by human beings on Mars and all its affiliated cities will be completed, and then human beings can officially start living on Mars.

The second is that the armed forces of mankind should continue to be strengthened, after all, Zhu Lei took away more than 200,000 warships in the solar system this time, and these warships are all the most powerful warships of mankind, and now the mainland of the Ming Empire in the solar system is left with some relatively old-fashioned warships, it can be said that the solar system of the Ming Empire is now when the armed forces are weak, if there is an alien civilization attacking the solar system at this time, then the solar system is backward old warships except for a limited number of cutting-edge warships.

Therefore, the solar system has started a new round of ship-building storms, and this ship-building plan is more than the 200,000 ships of the expeditionary fleet that Zhu Lei has taken away, reaching a full 300,000 ships, and since there is no hurry to go on the expedition now, most of the 300,000 warships are some large warships, and the Ming Empire is also preparing to build sixty-one battleships.

And because the technology of the Ming Empire is now more advanced than ten years ago, these planned new battleships, both in terms of tonnage and firepower, are much stronger than the one Zhu Lei took away, after all, the battleship that Zhu Lei is now on was built ten years ago, so a lot of technology has been updated.

However, the human ship-building plan is very large, after all, there are 300,000 space warships, and most of the warships in the plan are large warships, so the demand for resources is very huge, and now there are no metal minerals worth mining in the center of the solar system except for the eight planets and their moons.

All the meteorites in the center of the entire solar system have disappeared, such as the asteroid belt that used to be between Mars and Jupiter, but now it is empty, and even the meteorites the size of dust have become raw materials for making spaceships or become part of Mars, and now the solar system has become very empty.

Therefore, all the minerals needed for the construction of the ship can only be brought from Kuiper.

The Kuiper Belt is located in the outermost part of the solar system, at the edge of the solar system outside the orbit of Neptune, and Pluto is also a dwarf planet in the Kuiper Belt.

Compared with the asteroid belt between Mars and Jupiter, the number of asteroids in the Kuiper Belt is undoubtedly many times larger in terms of quantity and total mass, after all, compared with the Kuiper Belt, the number of asteroids in the asteroid belt is only a few less than a million asteroids, and the number of asteroids in the Kuiper Belt cannot be estimated at all, and the size of the Kuiper Belt is countless times wider than the asteroid belt between Mars and Jupiter.

The Kuiper Belt is the original material of the formation of the solar system, most of these materials are the remnants of the solar nebula in the early days of the sun, you can imagine how rich the material here is, after all, as the residual material formed by the sun, it will never be less, how big is the volume of the sun?

All the planets in the entire solar system are far worse than the sun combined, and as a remnant of the solar system's formative period, the total mass of the Kuiper Belt is quite large.

Therefore, the Kuiper Belt has become the first choice for human beings to create a new fleet, and because of the large number of asteroids in the Kuiper Belt, it is an inexhaustible source of minerals for the Ming Empire, and if the mineral lighting of the Kuiper Belt in the future, there is also the Oort Nebula, which is richer in the outer part of the solar system, it can be said that in a short period of time, the Ming Empire will not have a shortage of mineral resources, but now the most important thing is how to mine these minerals and turn them into materials that can make spaceships.

Now there are human beings everywhere in the solar system, from the low earth orbit near the earth to the distant Kuiper belt, and even Mercury is relatively close to the sun.

Rich in resources, there is no rule that it cannot be mined, which has become the planet that all mining ships in the Ming Empire want to mine, but due to the environment of Mercury, it still stopped most of the people, and because Mercury is too close to the sun, as long as the sun erupts, the mining ships mining on Mercury may even disappear in the solar system with people and ships.

After all, although human technology has reached the level of intermediate civilization, it still has no ability to wrestle with the sun, so there are still many people who go to Mercury to mine, but every year many mining ships disappear on Mercury.

The other planets and moons of the solar system, the Ming Empire has clear regulations, without official permission, no individual or collective is allowed to mine all the materials on these planets, so those small mining ships in the early empire, in addition to transporting carbon dioxide gas between Venus and Mars, and mining on Mercury, are left with the Kuiper belt to mine ore.

However, due to the relatively long distance, it is very difficult for human small space mining ships to come here to mine, and those small mining ships are limited in size, after all, they only have a mass of five or six hundred tons, and the energy carried by these small mining ships is limited, and they cannot support such a long distance to mine in the Kuiper belt.

But this is difficult for smart human beings, human beings have a lot of ideas, but the most amazing thing is that some people get along with the same way as in the ocean age on the earth, that is, so tugboats, yes is cosmic tugboats, and shrewd businessmen have created cosmic tugboats, like small boats in the canals of the earth era, one by one and then towed to the asteroid belt by tugboats, which saves a lot of energy required for flight.

Then after mining, it was towed back by tugboat.

Of course, if the mining ship drags a huge asteroid behind it, there is no way to tow it back with a tugboat, after all, the power of the tugboat is also limited, after all, these tugboats are produced by private shipyards, because private shipyards have no way to buy high-thrust engines, let alone controllable nuclear power engines, after all, as civilian spaceships, most of them do not need high-thrust engines, after all, civilian spaceships are generally active in the solar system.

Therefore, for the sale of high-thrust engines, Yongan Group's restrictions are very strict, so most of these tugboats use ordinary engines, but the number of engines used by these space tugs is more than double that of ordinary spaceships, and some are even several times more than ordinary spaceships.

And the size of these space tugs is generally about 10,000 tons, although the speed of these space tugs is not very fast, and they can reach a speed of about fifty or sixty kilometers per second at the fastest, but because of the many engines on these spaceships, the strength of these tugs is not small, generally about 1,000 tons of space tugs, can drag more than a dozen small mining ships around.

And a tugboat of tens of thousands of tons can even tow hundreds or even more small space mining ships to operate in the solar system.

Of course, medium-sized mining ships and large mining ships do not need to use tugboats, because medium and large mining ships are manufactured by the official shipyards of Yongan Group and the Ming Empire, so the engines used by medium and large space mining ships are not ordinary engines, whether in terms of energy saving, or in terms of the propulsion of the spacecraft, they far exceed the space tugs, so generally when a medium or large space mining ship goes out to mine, it also drags a large row of small mining ships behind.

Although it is said that medium and large space mining ships can also serve as space tugs, but in terms of profits, they cannot be compared with mining at all, after all, the main role of space mining farms is mining, so these medium and large space mining ships generally only act as space tugs when they go back and forth, after all, acting as space tugs can also earn energy fees on the way back.

Therefore, a large row of small space mining ships of different appearances can be seen everywhere in the entire solar system, expanding behind a tugboat, and flying towards the outer periphery of the solar system, that is, the Kuiper Belt.

And the appearance of these cosmic tugs is also very different, it can even be said that none of these cosmic tugs are the same in appearance, and even the small mining ships towed behind him have various appearances.

This is very different from the mining ship with only four models when the Ming Empire first began to sell cosmic mining rights, which is due to the cosmic policy of the Ming Empire.

Although the Ming Empire has strict restrictions on various means of transportation such as planets, what is the factory, then if you want to modify it, it is very troublesome, all modified or self-made atmospheric vehicles, as well as land vehicles have strict testing procedures, as long as one does not meet the standard, then you can't go on the road.

However, for the modification of spacecraft, the policy of the Ming Empire is not so strict, the most important thing is that the production structure of the spacecraft, and the safety are relatively strict, and the others have not made detailed regulations, and in terms of the appearance of the spacecraft, there is no clear regulation.

Therefore, the human spaceships in the solar system have a variety of appearances, some are like airplanes from the time of the nations on the earth, some are similar to the sail warships of the Great Exploration Period, and some are even brainstormed to design the appearance of the aircraft to look like a tree and a grass.

In short, in terms of the appearance of the aircraft, there are as many styles of aircraft as there are brain holes, although many of the designs do not conform to various mechanics, but in general, these spaceships have all passed the safety inspection of the Ming Empire, and there is no need to worry about the sudden disintegration of the spacecraft when flying, because the appearance design of the aircraft with major safety hazards cannot pass the spacecraft test.

In addition to the mining industry, the Ming Empire also encourages other industries to develop into space, so for a while, the whole person has set up countless space-facing enterprises, the most developed of which is the space shipbuilding industry, although the leased Yongan Group and the shipyards of the Ming Empire government monopolize most of the shipbuilding industry, but the Yongan Group and the Ming Empire government monopolize some military spaceships, and resource gathering ships, that is, all kinds of mining ships, and the manufacture of general civilian spaceships is very small, It can even be said that the civil spacecraft of the Ming Empire and Zhu Lei's Yongan Group are not involved at all.

After all, the development of a civilization needs not only the development of a company and the official, but also the common development of countless enterprises, so for civilian spacecraft, whether it is the official of the Ming Empire or the leased Yongan Group, they all abide by the same code and will never be involved.

Other industries are also developing rapidly, such as space agriculture, space industry, space tourism, space entertainment, space exploration and a series of space-related industries are developing at an unprecedented speed, so human beings can be seen everywhere in the solar system, and even in the skin of the solar system, there are human explorers in the Oort Nebula.

So at this time, the entire human race is full of vigorous and upward atmosphere, after all, it is only a short fifty or sixty years for human beings to enter the interstellar age, which is the most active period, compared with those old and decaying intermediate civilizations in the galaxy, the development speed of human beings can definitely be described as a thousand miles a day.

Therefore, Zhu Lei's heart is very much looking forward to the future of mankind, and he is also confident that the Ming Empire can be promoted to an advanced civilization within a thousand years, that is, an advanced civilization among all civilizations in the universe.