Xiao Yu waited quietly in the dark space. During this month, Xiao Yu carried out a major repair on all the damaged spacecraft. In this overhaul, twenty more spaceships were dismantled by Xiao Yu, and the parts on them were installed on the rest of the spaceships.

Xiao Yu's long-distance fleet, the total number of which is still two hundred and seventy-one. Among them, only the Sun is left as a flagship-class spacecraft.

While arranging for the overhaul of the damaged spaceship, Xiao Yu was still deducing, trying his best to simulate what might happen to the planet after being attacked by the wood spirit.

Gradually, a month passed. Xiao Yu steered the spaceship and began to return home.

Bright blue flames illuminate the pitch-black space and also emit intense radiation. In the darkness of space, it is very conspicuous. Xiao Yu believed that if the other party was still alive, they would definitely be able to detect this movement.

However, until Xiao Yu's fleet approached the other planet for five million kilometers, there was still no movement on the other planet.

No spacecraft took off, and the space-based laser batteries, missile launch pads, etc., operating in geosynchronous orbits, did not release any attacks.

Xiao Yu was overjoyed. Wu Bai's distance of 10,000 kilometers, at Xiao Yu's speed, can be crossed in less than four hours. If an interstellar missile is launched, it will only take half an hour for the interstellar missile to bombard the planet.

In terms of the universe, this is a very close distance.

Xiao Yu was not sure that his civilization would definitely succeed in exterminating Jihua. Because of the creature Mu Ling, although it has accompanied Xiao Yu for thousands of years, Xiao Yu has never used a smart creature to make a shiyan, so he really doesn't know how much of a role it can play.

"It could be a trap." Xiao Yu thought in his heart.

Xiao Yu is not worried that the other party will lay a trap in space to ambush him, because when the spaceship takes off, its engine will expose its tracks. During this time, Xiao Yu has been monitoring this direction with all his might, and has not found any signs of the spaceship taking off.

The only thing worth worrying about is that the other party set up an ambush on the ground of the planet, and then when Xiao Yu landed, he suddenly killed and severely damaged Xiao Yu.

Xiao Yu didn't believe that just relying on these wood spirits could completely destroy a civilization. When a civilization is facing destruction, it will always burst out with amazing potential, and endless heroes will emerge, which has been proven countless times on Earth.

In Xiao Yu's speculation, the most likely scenario is that the wood spirits are all killed by the other party, but these wood spirits will also cause heavy damage to the other party, as for how hard they can be injured, it depends on luck.

"I don't care if you die or not, let's launch a few missiles first." Xiao Yu thought about it, the missile launcher at the bottom of the Sun stretched out, and five interstellar missiles carrying high-yield hydrogen bombs flew towards the planet at a rapid pace.

This time, Xiao Yu did not set the hydrogen bombs to explode at the periphery of the atmosphere, but to let the missiles explode when they reached the ground.

Among the warheads of these interstellar missiles launched by Xiao Yu, they were loaded with large-yield three-phase bombs.

Wrapping a layer of thermonuclear material around the outside of an atomic bomb is a hydrogen bomb, and then wrapping another layer of fissile material around the outside of a hydrogen bomb is a three-phase bomb. Most of the hydrogen bombs on the earth are three-phase bombs.

Three-phase bombs can achieve maximum lethality, but also cause maximum radiation damage, which will cause irreparable damage to the planet. Xiao Yu believes that if they still have the ability to resist, they will definitely resist.

It took a full five hours for these interstellar missiles to reach the opposing planet. In fact, if you calculate the full speed of the interstellar missile, it will only take less than half an hour to arrive, but if you fly at that speed, when these missiles come into contact with the opponent's atmosphere, they will be instantly destroyed by the opponent's planet's atmosphere. At such a high speed, there is no difference between the planet's atmosphere and the hard steel plates.

There was no way, Xiao Yu had to speed up these missiles first, and then slow down before reaching the opponent's atmosphere, so as to ensure that these interstellar missiles reached the ground safely.

Xiao Yu saw that on the alien planet five million kilometers away, five bright lights like meteors appeared, which were caused by the friction between the missile and the atmosphere of the opposing planet.

The missile smoothly entered the atmosphere of the opposing planet, and no one came out to stop it.

Xiao Yu silently looked into the distance, looking at the huge fire that suddenly erupted on the planet.

There were a total of five fires, even if Xiao Yu was five million kilometers away, Xiao Yu could clearly observe this movement.

The power of a hydrogen bomb is severely limited in space, but it is not the same on the ground, where gas is abundant. It can be said that the destructive power of a hydrogen bomb exploding in the atmosphere is more than ten times higher than that of a hydrogen bomb in space.

Xiao Yu knew that during the Cold War on the earth, the former Soviet Union had built a hydrogen bomb with a yield of 100 million tons at a moment, but it was not detonated, the reason is very simple, with a hydrogen bomb of 100 million tons, the former Soviet Union simply did not have a Shiyan site that was sufficient to accommodate its huge explosive power. In desperation, the former Soviet Union split it into two hydrogen bombs with a yield of 50 million tons, so that they could be successfully detonated.

Even if it is a hydrogen bomb with a yield of 50 million tons, its power still exceeds the predictions of former Soviet researchers. As a result, all the Shiyan instruments and Shiyan creatures prepared in advance were completely destroyed, and all animals within a radius of several hundred kilometers around the nuclear explosion lost their hair and died miserably in the next few months.

The 50 million ton equivalent of hydrogen bombs is still the same, and the smallest of the five hydrogen bombs launched by Xiao Yu is 200 million tons of TNT equivalent.

This means that these hydrogen bombs, in addition to the conventional high temperature, radiation, shock wave and other lethality, will also have a permanent impact on the crust of the opposing planet, and in the future, the opposing planet will frequently have violent earthquakes, volcanoes and other phenomena.

If it were Xiao Yu, Xiao Yu would never allow these hydrogen bombs to explode on his planet. Xiao Yu believed that the other party would never allow the planet on which he lived to be so damaged. But these missiles were not blocked.

This only says ...... The other party really lost the liliang who resisted.

"Could it be that the wood spirit really wiped out the other party? If that's the case, maybe I should focus on the remaining wood spirits. If I worked so hard to eliminate this civilization, but the wood spirit took advantage of it and killed me, then the fun would be great. ”

Xiao Yu thought in his heart, manipulating the fleet, and began to slowly approach the planet.

The distance has slowly narrowed to 500,000 kilometers.

Xiao Yu first destroyed all the other party's space-based laser turrets, missile launch pads, space docks and other equipment that might hide ambushes around the planet before starting the next move.

This is the first time that Xiao Yu has been so close to this planet, and this distance is already within the enveloping range of the magnetic field of the other planet.

Xiao Yu detected a magnetic field about twice the strength of the Earth.

"Sure enough, there is a magnetic field...... Otherwise, a planet without a magnetic field would be too rebellious if it developed an intelligent civilization. Xiao Yu thought.

This is interstellar space, there are no stars sheltering this planet, if it does not have a high-strength magnetic field, and has developed a smart civilization, Xiao Yu will have to overthrow many things that he knew before.

Although the solar wind often affects radio communications on the Earth, it also protects the Earth from various interstellar radiation. Without the presence of the solar wind, it is still unknown whether life can appear on Earth.

The distance is still slowly shrinking, 400,000 kilometers...... 300,000 km ......

This distance is equivalent to the distance between the Earth and the Moon. At this distance, Xiao Yu measured the atmospheric composition of the opposing planet in detail and began to prepare for the upcoming landing operation.

"The atmosphere of this planet contains extremely high concentrations of sulfur, which is not a good phenomenon, and some modifications are needed to the robot to adapt to this air without being corroded."

Xiao Yu thought about it and began the transformation of the robot.

In the early days, Xiao Yujihua sent five village-level spaceships carrying a thousand robots down, and after figuring out the situation first, he sent more robots.

The distance has been shortened to 100,000 kilometers.

Xiao Yu began to operate the newly manufactured thermal imaging detector to carry out geological mapping work on the opposing planet. Since there is no light source here, infrared light can only be used instead of visible light.

Under the detection of the thermal imaging detector, Xiao Yu found a phenomenon that surprised him extremely much. The results of the detection show that the temperature on the ground of this planet is about 20 degrees.

"There are no stars here that give them heat, so where does that heat come from?" Xiao Yu was puzzled, and after further exploration, he understood.

The core material composition of this planet is not the same as that of Earth. The core of the earth is mainly composed of iron and nickel, and the core of this planet is mainly composed of various radioactive elements, and as the radioactive elements continue to decay, a steady stream of heat will be released to the ground.

The earth relies on the sun for heat, and the planet relies on the decay of its core radioactive elements for heat.

"I see, I see, no wonder it has a gaseous atmosphere." Xiao Yu suddenly realized.

With the solution of a puzzle, the distance between Xiao Yu and this planet has also been shortened to 30,000 kilometers.

"It's time to launch satellites." Xiao Yu thought about it, and manipulated the spacecraft launch pad to launch more than eighty satellites. These satellites have different roles, some are responsible for detecting geology, looking for minerals, some are responsible for delineating the terrain, etc., but they all have one basic function, which is communication. After being launched, these satellites will provide signal coverage for the planet, and Xiao Yu, who is in space, will be able to command robots anywhere to carry out various actions.

"It's time for a landing operation." Xiao Yu thought about it, and sent five village-level spaceships, carrying a thousand robots, to slowly approach the atmosphere of the opposing planet.

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The third watch is over! Ask for tickets, reward, collect and cheer!!! Staying up late to code words requires motivation!!