Ye Han chatted with the two of them for a few more words, and the earth suddenly appeared outside the porthole, which aroused Ye Han's thoughts, and chatted with the two about the changes in the past two years. Pen ~ fun ~ pavilion www.biquge.info

Two years is not a long time, but the changes are really not small.

Ye Han already knew about the changes in Beiyuezhou from Bai Xiaoting, but Bai Xiaoting had slept for two years, and after waking up, she was busy taking care of Professor Qin, and she didn't care much about time at all, except for what she could see around her, she didn't know anything else.

And Xiao Chi and Xiao Chi are both officers who lead the army, and they are very familiar with current affairs, especially the military level that Bai Xiaoting has never heard of, and this is precisely one of the issues that Ye Han is most concerned about.

Ye Han had already heard about the surface changes in Beiyue Continent from Bai Xiaoting, and Ye Han was very surprised by the number of up to 100,000 residents, and he never understood how the ground used to send so many people to the moon.

In fact, the launch of the spacecraft is much easier today than two years ago, because the country has spent huge manpower and material resources to build an electromagnetic catapult orbit of more than 10 kilometers in the mountainous area of Qiongzhou!

This thing is the same principle as the ejection orbit of the moon, but the gravitational pull of the earth is much higher than that of the moon, coupled with the resistance of the atmosphere, the Qiongzhou orbit is shorter, and it is impossible to send the spacecraft directly into space.

However, this thing can give the rocket a very high muzzle velocity, and the rocket itself only needs to carry a small amount of fuel to lift off smoothly.

This was originally the work of the flying rocket carrier aircraft, but the cost of one liftoff of the flying space is not small, and the energy consumption and cost of the electromagnetic orbit are much lower than that of the flying space.

It's easy for rockets to get into space, and it's strange that the population of Moon City doesn't increase.

If it weren't for the Qiongzhou orbit being put into use, the military would not have the confidence to build an orbital airborne force, otherwise every airborne training would have to be sent back to the sky by a carrier rocket, and whoever saw the training cost of the astronomical numbers would have to vomit three liters of blood.

In addition, the application of shallow hibernation technology has also greatly improved the safety of the spacecraft during liftoff and avoided the unexpected risks of special personnel during liftoff, so many elderly people left the earth to settle on the moon, and at least one-third of the lunar residents were in this situation.

Ye Han was very curious, how could the country allow this to happen, and after asking carefully, he found out that these people are basically old experts and professors in various industries, and they are the kind of masters who deserve their names, and a few exceptions are also special contributions to the country, otherwise they are not qualified to settle on the moon at all.

Today's North Moon Continent is not the place where there was nothing back then, away from the earth is equivalent to staying away from giant insects and dangers, all over the world, who doesn't want to immigrate to the moon?

But the artificial ecology of the moon is very fragile, although the base has been repeatedly expanded, it is not possible to immigrate to the moon without restrictions, and special abilities and special contributions are the only stepping stones in the North Moon Continent.

Beidu has also considered the feasibility of a large number of immigrants, after all, the threat of aliens is still not lifted, and it is better not to put all your eggs in the same basket.

In order to solve this problem, as early as a year ago, Beiyuezhou organized manpower to open up the "Nanyuezhou Base" to seize the south pole of the moon in front of the base group.

The operation in Beiyuezhou cannot be concealed from the international base, but from Beiyue to Nanyue, the land distance is more than 10,000 kilometers in a straight line, and if the terrain is taken into account, 15,000 kilometers cannot be stopped.

Beiyuezhou gave full play to its own advantages, and the materials sent to Nanyuezhou were launched into space with electromagnetic orbits, and then landed at the south pole of the moon after flying around the moon for half a circle.

The Yankees are also eyeing Antarctica, but the scale of the international base is always inferior to Beiyuezhou, and it can't grab Beiyuezhou at all.

Step by step, step by step, the Yankees regretted that their intestines were blue, why did they get lost in the first place, and they had to let the northern capital explore any way?

In fact, the so-called pathfinding is not the main reason, the most important reason is that the Yankees are superstitious about their own industrial and technological strength, believing that no country except the United States has the strength to build a lunar base.

After the Moon Palace plan was fully rolled out, it was too late for the Yankees to realize that the situation was wrong.

No one cares what outsiders think, in short, Nanyuezhou is occupied.

The Yankees have never given up on Nanyuezhou, wanting to get a piece of the pie, and have had many contacts with Beidu in private. However, the Beiyuezhou base is stronger than the international base, the Beiyuezhou fleet is stronger than the international fleet, and even the two Jupiter battles were completed independently by the Chinese side in forming an expeditionary force, and the northern capital definitely has the confidence to not bird Washington.

In terms of comprehensive national strength and technological level, the Northern Capital must also recognize the leading position of the Yankees, but China can concentrate superior resources in aerospace to engage in space wars, but the national conditions of the United States do not allow Washington to concentrate resources on the space industry.

The northern capital also wants to build a few more lunar cities to transform the lunar base from a purely military purpose to a colony, but there are ice mines at only the two poles of the moon, so the lunar city can only be built at the two poles of the moon, and other areas do not have the conditions for building cities at all unless they find underground lakes above the horizontal line.

According to the planning of the northern capital, ten or eight moon cities can be built at the south pole of the moon, but the resources are limited, and the sky can feed 100 million people, and the deterioration of the environment cannot be considered, take the route of sustainable development, and feed tens of millions of people in the sky.

Of course, there is no point in thinking about this now, Qiongzhou's transportation capacity is limited, and it will take at least several years to fill a lunar city.

Even so, the Northern Capital was no longer satisfied with opening up lunar colonies and began to set its sights on other stars.

In Ye Han's cognition, the most colonized stars should be Ganymede and Ganymede, these two moons have a lot of water and a large area of land, which can obtain enough mineral resources to support development, unlike Europa like ice, which looks very suitable for colonization, but immigrants can't live on water and ice alone, right?

Mars also seems to be a good choice, with evidence that it has a lot of groundwater.

However, the exact location of the groundwater and how much it is is still a mystery, and colonizing Mars is a joke until enough water is found.

Asteroid belt? There aren't any asteroids rich in water, right?

Saturn's moons may also have the basic conditions for colonization, but the place is far from the sun, and the temperature is so low that the air will become solid, and even if there is water resources, it cannot be used as a colonization target.

At the current level of technology, colonizing Galileo moons is an impossible task, even if those moons don't allow aliens to occupy the magpie's nest.

Ye Han could only think of these, but the answer Xiao Yuan gave him surprised him, the next target of the military was actually Mercury!