Luo Yuan unraveled the curvature bubble and flew slowly through the galaxy.

Ignoring the wandering planets on the outskirts, this star system is undoubtedly much smaller than the solar system, with four planets, large and small, slowly orbiting the star according to their respective orbits.

Based on the distance from the star, Luo Yuan labeled the four planets as No. 1, No. 2, No. 3 and No. 4 respectively.

One and four are solid planets, and two and three are gaseous planets.

The largest of these is the No. 3 gaseous planet, which is comparable in diameter to Saturn, and has a ground guard system composed of five moons.

The smallest is Planet 1, with a diameter of about 4,000 kilometers, only one circle larger than the Moon and only one-third of the Earth. Because of the dim light and extremely low temperature in space, even if the planet's orbit is close to the star, it is still covered with a thick layer of ice, and the surface is smooth, making it difficult to see the undulations of the terrain.

And Luo Yuan's target is the outermost planet four, the earth is already the largest solid planet in the solar system, and Luo Yuan found that this planet is one and five times larger than the diameter of the earth, and it is a veritable giant solid planet.

As you can see from the gravitational field it emits, it has quite a large mass.

This is a rather positive signal for Luo Yuan, which shows that this planet is basically a rocky planet, and it is full of a large number of heavy elements, which is a perfect resource planet for humans.

In fact, on the scale of the universe, the stock of heavy elements is finite and rare.

The reason for this is that the nuclear fusion of stars generally begins with hydrogen or helium, and ends with iron, if the internal pressure of the star is not strong enough, to carbon, oxygen will be terminated, and to finally fuse into iron, the mass of the star needs to be at least eight solar masses, and the zinc element has the highest sequence that fusion can form.

Most of the heavy elements in the universe come from supernova explosions, when a giant star collapses violently, in the "severe pain" of its eventual death, it can produce a terrifying high temperature of hundreds of millions of degrees Celsius, and under the energy of this near-death explosion, it is "baked" to form elements beyond iron and zinc, as for superheavy elements such as gold, platinum and radioactive heavy elements, it comes from the collision between neutron stars and the regurgitation of black hole matter.

Luo Yuan guessed that there used to be extreme celestial bodies such as neutron stars in this surrounding star field, including the solar system, and it was their death and dissipation that made this star field full of heavy elements.

……

It didn't take long for him to fly near the planet, and like a meteor, he quickly fell towards the planet's surface.

Although the gravitational pull of this giant planet is huge, it does not have an atmosphere, after all, no matter what gas, it is solidified at this low temperature close to absolute zero, but it has to be compared to whom, compared to the near-vacuum space outside, it still has a meager atmospheric concentration.

As Luo Yuan followed the gravitational pull of the planet, his speed became faster and faster, and his body began to burn gradually under the friction of trace gases in the atmosphere, from the imperceptible red light at the beginning, it turned into a raging fireball in the blink of an eye, and finally turned into a dazzling light.

On this originally dead planet, fierce winds gradually appeared, and countless air currents vaporized on the surface of the ice, like smoke and fog, blowing away in all directions.

When approaching the surface, Luo Yuan's speed had reached a quarter of the speed of light, and the huge kinetic energy he carried, before it could collide, the ice in a radius of hundreds of kilometers had begun to sink inward, forming a huge bowl shape.

"Boom!"

A blinding light, like the explosion of a nuclear bomb, lit up from the surface.

The ice at the center of the explosion was several kilometers thick and instantly decomposed into microscopic particles, and even at a distance of more than 100 kilometers around the explosion, the ice quickly vaporized under the illumination of this light, which was hundreds of times brighter than the surface of the sun, and was then carried in all directions by the shock wave that followed.

If you stand at a high altitude, you can clearly see that this area was impacted, forming a huge basin with a radius of hundreds of kilometers, which is equivalent to half of Jiangnan Province on the earth.

The energy generated by this impact was not comparable to the last time when the force was tested.

Luo Yuan's own mass has reached more than 100 tons, plus more than 200 tons of the space ball, the overall mass is close to 400 tons, and the energy carried by the impact at a quarter of the speed of light is not much lower than that of the antimatter bomb that fell in the reconstruction area.

Luo Yuan was suspended quietly at the bottom of the pit, his face was expressionless, under this level of impact, his body was still unscathed, the ice layer was not a substance with a 50,000 collapse ratio, and there was no essential difference between it and passing through the air for him.

By this time he had penetrated directly through the ice and into the rocky layer, and his surroundings were still filled with a blinding light, no matter could exist in such high temperatures, and all matter was broken down into elementary atoms.

"The gravity is 3.5G, and the magnetic field strength is 0.001T, which is 20 times that of the Earth...... Fe:51.5%，C:13%，H:8%，O:3%”

He quickly analyzed the surrounding environment, this planet is quite rich in iron elements, at least in this area, iron accounts for fifty percent of the elemental species, placed on the earth, this is undoubtedly an iron-rich mine, and the water resources are also quite rich in light elements, enough to be used as fusion fuel.

He waved his hand, and the water vapor that had accumulated like mountains around him was separated by him with a wave of his hand, and the next moment, his whole body soared into the sky.

Hundreds of seconds later, he was back in space.

He took out the space ball and opened the space channel, and after a while, a sesame-sized mini spaceship flew out slowly along the space channel.

In flight, it began to expand rapidly at a speed visible to the naked eye, one second, it was only the size of a sesame seed, the next second, it had become the size of a round table, and after more than ten seconds, it had become a behemoth......

……

A year and a half later.

The dead and desolate Barnard galaxy has become increasingly noisy.

On the surface of Planet 4, centered on the basin formed after the impact of Luo Yuan, a huge mining and metallurgical base has spread over the entire basin like a steel forest, and even spread hundreds of kilometers to the periphery, and tens of thousands of huge robotic arms are filled with endless power, constantly going deep into the ground, absorbing the rich minerals of the ground.

And in the synchronous orbit of the planet, a huge metal space city covering an area of tens of thousands of square kilometers is also in full swing and extremely busy.

A large number of mining ships like busy ants shuttle back and forth between space cities and planets, transporting various crude elements, which are then further processed and smelted here to make various mechanical equipment.

The productivity that has been suppressed for a long time due to resource constraints is simply terrible once it explodes.

With a large amount of technology in the virtual world being quickly translated into reality, tens of thousands of factories have been established here in the past year and a half, and they are still being built and expanded.

And in one of the giant factories covering an area of thousands of square kilometers, two huge gantries have been towering high in orbit like mountains, and the construction of a new type of spaceship,

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