In the 19th year of the Earth calendar, the Earth finally crossed Mars and came to the asteroid belt between Mars and Jupiter, driven by the gravitational propulsion engine of the planet.

The Earth rested here for a year and captured more than 10,000 resource asteroids before setting sail again.

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In the 26th year of the Earth calendar, the Earth passed Jupiter, and after absorbing a large amount of hydrogen and helium, it flew towards Saturn.

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In the 30 years of the Earth's calendar, the planet's gravitational propulsion engine finally completed its first acceleration and successfully reached Saturn. After capturing Titan as a satellite of the Earth, the Earth set sail again.

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In the 34th year of the Earth calendar, the Earth has successively crossed Uranus and Neptune, and is closer to leaving the solar system.

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In the 38th year of the Earth calendar, the planet's gravity pushed the engine to complete the second speed, but unfortunately Pluto had already turned to other places at this time, and the Earth did not have time to say goodbye to it, so it went straight to Kuiper.

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After 40 years and more than 20 years, the Earth has finally reached the Kuiper Belt.

At this time, the burning rate of the sun has increased to a limit, even in the distant orbit of Pluto, the sun can be seen as a bright dot, and the temperature near Pluto's orbit is not the usual low temperature, but there are signs of rising.

This means that the hydrogen inside the Sun is about to be burned out, and it may not take a few decades, maybe a hundred years, for the Sun to expand and evolve into a red giant, at which point Mercury, Venus, and the Earth's orbit will be absorbed by the expanded Sun.

Of course, if Mercury and Venus hadn't melted by then, it would have been a pity that the Earth would not have seen that spectacular scene

Because at this time, the Earth has crossed the orbit of Pluto and officially entered the edge of the Kuiper Belt.

More than 3 million warships formed a cone-shaped array in front of the Earth, constantly cleaning up all the meteorites and asteroids encountered along the way, and now there are more than 100,000 moons around the Earth.

Except for 30,000 of these 100,000 satellites, the rest have been transformed into satellite fortresses by the old men of the Federal Academy of Sciences, which can be regarded as a simplified version of the planet fortress, which has higher attack power than ordinary second-level civilization warships, but the defense power is lower.

But it doesn't matter, they were originally built to replace warships at certain times, because compared to the terrifying energy consumption of battleships, the energy consumption of satellite fortresses is almost pediatric.

Although the energy reserves on the earth are now enough to support hundreds of millions of warships to fight continuously for ten years, adhering to the concept of conservation, it is still possible to save money, and who knows if there is still a chance to replenish energy in the solar system.

Therefore, satellite fortresses were born from this, and these are basically satellite fortresses built from abandoned resource satellites, which can be said to be the cheapest combat power.

However, at this moment, in the face of the overwhelming asteroids and meteorite swarms, the role of the satellite fortress is minimized.

At the same time, the gravitational propulsion of the planet's engine is slowly slowing down to prevent the Earth from going too fast and crashing into the larger asteroids.

After all, advancing in this place is like going to the market, all the stars and cosmic dust are crowded together, and the speed is no different from slow. In that case, it might as well slow down and walk slowly, so that it may be safer.

Only the planet-level shield was propped up when the Earth entered the Kuiper Belt, enveloping the entire Earth and all the resource satellites and warships inside.

Here, danger occurs all the time, Meng Ke didn't dare to bet that the entire earth would collide with those asteroids and meteorites, even if there were warships in front of the way, there would still be fish caught in the net, and opening the planet-level protective shield was the wisest choice.

"Jarvis, how long do we have before we get out of the Kuiper Belt?" While the planet-level protective shield was propped up, Meng Ke stood on the balcony of the Führer's office and asked.

Jarvis's figure hovered beside him, and he replied aloud: "The speed of the planet's gravitational propulsion engine has been reduced to thirty-five percent, and at this rate, we have at least a year and a half to cross the Kuiper Belt and enter the Oort Nebula." ”

"Hmm." Meng Ke nodded and continued to ask, "Is there any progress in the collection of cosmic rays from the Federal Academy of Sciences?" ”

"Yes, they have basically figured out the material at the junction of the Kuiper Belt and the Oort Nebula, where there should be a large amount of interstellar matter and various cosmic rays such as super-electromagnetic fields, with the strength of today's planetary shield, there is a chance of more than 90 percent that the earth can be protected from those interstellar materials and cosmic rays, but equipment such as the circum-earth orbital defense circle, satellite fortresses, and artificial satellites may be destroyed by super-electromagnetic fields." Jarvis said quickly.

Almost at the same time as his words fell, Meng Ke's brows furrowed again: "Haven't new anti-radiation materials been developed yet?" I remember that this plan was already being implemented seven years ago, right? ”

"That's true, because this kind of radiation-resistant material has high requirements in all aspects, so those scientists have been experimenting with various methods for the past seven years, and six months ago they finally found a suitable hybrid material, and now they are testing. I think in two months at most, those scientists should be able to produce results. Jarvis also said helplessly.

The kind of material that Meng Ke mentioned is prepared for superelectromagnetic fields and various cosmic rays, and it is a kind of material that belongs to the second-level and mid-stage civilization. Although the current Earth Federation has also reached the middle stage of the second-level civilization, it will take some time for some scientific and technological theories to be realized.

This kind of material is like this, even with the most basic theories and assumptions, those scientists still have to spend a lot of time thinking about how to make it, and the improvement of a civilization is not something that can be achieved by just thinking about it.

It's just seven years, which is a bit too long.

You must know that those scientists are all intelligent new humans, whether it is calculation, memory, or analytical ability, they are all rebellious, and it takes so much time to study the materials of a middle level of civilization, it is impossible to say.

Fortunately, Meng Ke was not the kind of stern person, and he was a little depressed in his heart, and said: "Then let them hurry up, and be sure to replace all the materials of the entire Orbital Earth Defense Circle when crossing the isolation zone (here referring to the junction of the Kuiper Belt and the Oort Nebula)!" As for those satellites, don't worry about them, it's the same with them or not. ”

"Okay, I've been informed."

After receiving Jarvis's answer, Meng Ke waved his hand and sat back on the recliner to start his routine lunch break. (To be continued.) )