About two light-years away from Eternal, a huge Battlefortress-class spaceship is anchored in space, tens of millions of kilometers away is a huge star, emitting intense energy day and night. Pen & Fun & Pavilion www.biquge.info

Tens of thousands of kilometers away from the surface of this star, there are a large number of solar films floating, which absorb countless light energy, and then convert the light energy into electrical energy and store it in countless batteries.

Countless huge solar panels occupy an area of hundreds of thousands of square kilometers, and how big is an area of hundreds of thousands of kilometers? In the era of countries on Earth, it is much larger than the area of many countries.

The star is not as large as the Sun, about half the radius of the Sun, and if there are living planets in this star system, then when they look up at the star, they will find that the shadow is large enough to cover half of their planet.

These solar panels absorb energy all the time, enough energy per minute to compare to several small fusion reactors.

This is known as a Dyson sphere, where a large number of solar panels are artificially created to wrap around the star, and the powerful heat energy is absorbed and then stored in batteries.

This kind of battery is very delicate, made of graphene material, the smallest is only the size of a fist, can be fully charged in a few minutes, but the amount of electricity contained is very staggering, equivalent to the amount of electricity used in a city of more than 100,000 people in a day in the national era.

Although mankind has now mastered the technology of controlled nuclear fusion, after all, there are no star systems without any liquid water, and nuclear fusion materials cannot be obtained, so they can only use the natural super fusion reactor.

Spacecraft are constantly flying around in space, some are laying solar panels around stars, and some are collecting high-efficiency batteries that have stored a lot of energy behind the panels, and then filling up the batteries that have been depleted.

The batteries are to be transported to ships and machines that are mining for minerals on several nearby planets.

This huge Battlestar-class spaceship is known as the Collector, the largest spaceship of mankind today, capable of carrying 600,000 humans.

Of course, in addition to humans, the Collector spacecraft can carry nearly a hundred small and medium-sized carrier ships, taking them to the star system to mine various minerals.

Nowadays, there is basically no problem with human energy, as long as there is water, there is a continuous supply of nuclear fusion materials.

But energy alone is not enough, but also need a large number of minerals, such as the most cutting-edge subspace technology of human beings, it needs an extremely precious metal, this metal has not been found in nature, can only be produced by constantly bombarding the mass of atomic nuclei to make it fusion, such as francium, radium, actinide and so on.

But these elements are also extremely precious in nature, a galaxy the size of the solar system will not exceed hundreds of tons, after all, this massive element is the product of the collision of black holes, even in the scope of the entire universe is extremely rare.

But even if these hundreds of tons of such materials are refined, in the end, only less than one kilogram of precious materials needed for subspace can be extracted, and it will be consumed in just a few experiments, subspace technology is a technology that human beings must overcome when they enter the advanced peak civilization, and no one can stop it, so human beings must frantically exploit resources.

It has been half a year since the Collector spacecraft arrived in this star system, which has thirteen planets with a diameter of more than 1,000 kilometers, seven of which are solid planets, and the purpose of this time is to mine these seven planets.

Before mining, the planet should be deeply explored, two spacecraft are located on both sides of the planet, one spacecraft emits a beam of subneutrinos, this subneutrino has a strong penetration, almost nothing can block their penetration, but after artificial control, the subneutrino will have a certain reaction after encountering a large atom, and after the reaction, it will decay into another subatom, and the other spacecraft is to receive this subatom, according to the abundance of the received to calculate the reserves of the large atom, and then use the spectrum to analyze the depth of storage, once determined, humans will send excavation machinery into the earth's crust nearly 1,000 kilometers below to mine.

This kind of mining is devastating for a planet, and soon after mining, it will become a death star, and there is no possibility of giving birth to life.

Of course, humans don't care, the stars in the universe are almost infinite, except for those planets that have already produced life, other planets are bases for mining in the eyes of humans.

Survival and development are what every intelligent civilization must do.

The five planets that have been mined by the Collector spacecraft in half a year are not very ideal, and the most mineral is diamonds.

Diamonds were placed in hundreds of years of national times, which was a symbol of status and wealth, and a few grams of diamonds were worth a fortune, but now, diamonds are the cheapest minerals, and mining a planet can easily obtain tens of millions of tons or even hundreds of millions of tons of diamonds, and even copper, aluminum and other metals are greatly inferior.

On the cosmic scale, it is not uncommon for diamonds to be as numerous as cow's hair, this kind of material composed of carbon elements is almost all over the planets, but the conditions for their production are high temperature and high pressure, which can only be formed in the depths of the earth's core, when the country era, human technology has not been able to reach the interior of the stratum, so it is precious, but now, human machinery is enough to dig through a planet, and the value of diamonds is almost the same as soil.

A total of 7,000 tons of heavy metal ore have been excavated from the five planets, which have been sent to the refining spacecraft, and will eventually refine about 10 tons of heavy metal materials, which will be brought back to the Eternals after the completion of this mission and handed over to the Human Federation to be distributed to the subspace laboratory for various experiments.

"These planets are too low in heavy metals, and there are only two planets left, so let's hope we have a little luck. ”

Inside the Collector, Captain Tom was speaking to his men.

Under normal circumstances, in an ordinary star system, there are about tens of thousands of tons of heavy metal minerals required, and dozens of tons of pure heavy metals can be extracted, but now the work of the collector has passed most of it, and it has only excavated more than 3,000 tons of minerals, of course, other minerals have also been dug a lot, such as gold, about tens of thousands of tons, which is also a commonly used metal for human beings today, but it is still far inferior to those heavy metals.

This efficiency is still too low, and now Captain Tom even regrets coming to this nameless star system to dig, and the fleets that dig elsewhere are much better than him. (To be continued.) )