When the spacecraft entered the atmosphere, it was even more shocking, and the black smoke inside, which was quite thick, was still tumbling from time to time.

It seems that this is also the reason why this smoke has not disappeared, if it is calm, the dust in the smoke will slowly fall to the surface of the planet, if there is any more steam, these smoke and dust will directly turn into dirt.

The more the spacecraft descends, the lower the temperature, and even the strong wind, when it does not stop, now the navigation of the spacecraft basically relies on the navigation route more than a thousand years ago, slowly from 30,000 meters, to 20,000 meters, to 10,000 meters, until 5,000 meters later, the lights of the spacecraft can shine farther, and the wind at this height is greater, however, while the height changes, the wind direction also changes from time to time, is it related to the rolling of the smoke, you know, the smoke and dust on the top layer, the temperature is quite high, It absorbs the heat of the sun, and the smoke and dust on the other side are on the dark side, and the natural temperature drops very low, which may be the cause of the strong winds on the surface of the planet.

"The system keeps the spacecraft flying at an altitude of 5,000 meters at a slow cruising state, keeps the spotlights at the bottom fully on, and scans and maps the surface."

The ash layer, all the scanned images, is on the surface of the ground with a thick layer of dust, and there is no movement with the wind, and the surface is not flat, but has various shapes, it can be clearly seen that this is the ruins of the collapse of the building, and even some buildings that have not been broken after the collapse, but why is there a layer of dust on the surface.

"System, the spacecraft hovers, and a prospector ship is arranged to go down to collect some samples from the surface." Since I can't guess. So. Just collect the sample directly. If you have a sample, you don't know why?

Under the illumination of the light, I saw a prospecting boat fly straight down, and then stopped on the surface, it seems that at this time it is collecting samples, by the way, since you can't see it directly, is there any monitoring equipment?

"Monitoring. Mining monitoring, here, zoom in. As Yang Heng enlarged the picture, some curious people in the cabin also came over to watch.

It was seen that the prospecting boat did not fall directly on the ground, but was erected on the ground with several supports, and at the bottom of the airship there were ten probes working on the surface at the same time, and this probe would be withdrawn into the boat after a while, and it was estimated that the collected samples would be put down, and then continue mining.

"Marshal, how deep do you need to collect?" "Ten meters is enough."

Soon. On the screen it is simple that ten probes are recovered at the same time, and then. The airship also took off, the support frame was also recovered, and the airship was slowly recovered by the spacecraft, and as soon as the screen turned, I saw that the samples collected by the airship entered the spaceship's analysis room with numbers.

This is a ruined lot, it can be clearly seen on the sample, there are several millimeters thick dust layer at the top, first of all, this layer of dust adhesion test, that is, with cold wind for partial strength blowing, it can withstand ten winds without dust, it is a miracle, and then look down, it is understood, below is an ice layer, this ice layer has been measured, it looks more than 200 degrees below zero, it seems, this is the reason why the dust is very strong, it is frozen, it can be guessed, at the beginning, There was an all-round nuclear explosion on the surface of the planet, this Xuanyuan was too ruthless, Yang Heng wondered why he had stored so many nuclear bombs at that time.

"System, do you know why nuclear bombs were stored at that time?" "Back to Marshal, there were not many nuclear bombs stored at that time, looking at this phenomenon, it should be caused by the explosion of the missile engine, and these nuclear bombs are interstellar nuclear bombs, which are prepared for the development of the surrounding Proxima Centauri."

"Proxima Centauri, but why a nuclear bomb?" "Marshal, this is not an ordinary nuclear bomb, these three nuclear bombs will turn the moon into ruins, the Emperor originally wanted to turn Proxima Centauri into a gravel defense belt for the morning star, after the nuclear bomb was ready, after argumentation, it was impossible to succeed, so these nuclear bombs were preserved, but used other ways to develop Proxima Centauri."

Well, I can understand that the emperor at that time, I don't know which one exactly, wanted to expand the diameter of the Morning Galaxy, and the way to expand it was to bomb it with nuclear bombs.

Knowing the reason, Yang Heng didn't want to continue asking, this was not his goal, he was just curious to consult.

The detection of the sample is still in progress, under the ice, is a layer of ash, it seems that this is the ashes that fell after the original fire, naturally, there are also the ruins of buildings, and further down, some charred items began to appear, the bottom, is the soil layer, it is conceivable that after the nuclear explosion, first of all, the fire, the surface of the planet, even the fuel stored in the underground warehouse and even some trees were burned, and then, it was a big flood, why, the temperature on the surface of the planet rose, so that the ice at the poles melted, Led to the world's floods, in the image, Yang Heng did not find particularly high peaks, it seems that because of the long-term construction, the peaks have been leveled, and even in the image, it was found that the rain is artificial rainfall, even if there is natural rainfall, it is for the isolation layer to slowly divert the rainwater into the river and the sea. So, the mountains are useless to the planet.

"System, does our Morning Star have a human habitation satellite attached?" Suddenly, Yang Heng remembered a question, when he watched some interstellar movies or novels in his previous life, he said that a country would have how many habitable stars, how many habitable stars, how many galaxies, but it was not mentioned here.

"Back to the marshal, Morning Star does have a subordinate star, but it is not the kind of subordinate star that submits, but the kind of subordinate star of the federal nature, each with its own defensive circle, is a loose alliance state, they only have the right to support each other, and there is no right of who commands whom, this, related to communication, transportation, etc., although there are some advanced communication methods, but those methods are also transitioned, you know, no matter what kind of order, once there is a delay in communication, it is considered a mistake, so, Many galaxies, after assisting them to develop, they will easily become self-reliant, so from the initial mastery of multiple galaxies slowly into this loose alliance state, that is to say, our Morning Star is Emperor Cheng, and their country is the king, only these differences, this symbolic meaning, is greater than the actual meaning. ”

Well, this can be understood as the form of the empire on which the sun never sets in Yang Heng's previous life, at first the sun never sets, and then it became a symbolic rule.

"Marshal, it's not that there are no big interstellar countries, but that one requires luck, that is, there are several habitable planets in a star system, or there is a habitable planet, and then there are several modifiable planets, and there are also habitable planets and modifiable planets in Proxima Centauri, so that there are still several planets that become a country."

"Then, why don't we grab a few of these planets, forget it, I didn't ask." When Yang Heng asked, he realized that this is really redundant to ask, just look at the surrounding defenses, this, can be relocated in a thousand years, two thousand years, or can be built, you don't want to rob other people's planets, as a result, if the defense system can't be established, it will be destroyed, and some gains outweigh the losses, isn't it, this is also the reason why Yang Heng found that the human beings on the surface of this planet are more crowded.

"Report marshal, the sample has been tested, if you want to restore the habitable state of the planet, you must invest a lot of external force, and it will take a thousand years, otherwise, it may not be able to recover in 10,000 years, naturally, this is not included in the calculation of geothermal energy, maybe with the participation of geothermal energy, even if you don't need manpower, it will let the planet slowly recover by itself."

"Let's go into more detail, how do humans participate, how does geothermal energy participate?" "Back to Your Majesty, according to the records, if human beings participate, one way is to find all the combustible materials, gather them together, and ignite them, because the oxygen in the atmosphere is relatively sufficient, so it is still possible to burn some fuel, so that a microclimate will slowly form, and there will be steam transpiration, which will let the dust in the atmosphere fall down with the steam, this method is relatively slow, and the second method is to decide according to the geothermal situation, that is, to artificially drill out the volcano, Using volcanic heat or even volcanic eruptions to blow away the smoke and dust in the atmosphere, and let the surrounding ice melt, will also create a short dust-free space in the air, allowing the sun to shine in, this is an artificial way, and relying on geothermal heat its own way, that is, to wait for when, there is a weak point on the surface, which will make the volcano erupt automatically, which is an unpredictable thing, and it needs to be carefully explored to make it possible. (To be continued......)