Supernova explosions can only occur on stars that are more than eight times more massive than the Sun. The lifetime of a star is inversely proportional to its mass, i.e., the greater the mass, the shorter the lifespan. Stars with more than eight times the mass of the Sun generally have a lifespan of only a few tens of millions of years. Some supermassive stars, such as those dozens of times the mass of the Sun, may have a lifespan of only a few million years.

Because the more massive they are, the more they need the core to raise more energy to fight their own gravitational pull. In this case, their nuclear fusion reactions are much more intense than those of ordinary stars, with hundreds of millions of tons of matter being converted into energy every second. Under such a drastic and rapid transformation of matter, no matter how large their mass is, they cannot sustain it for too long.

The lifespan of millions of years, on a cosmic scale, is only a blink of an eye. At the end of their lives, they will die a heroic supernova explosion, presenting a brilliant cosmic fireworks for the entire universe.

This is the most magnificent event in the universe, the death of a star, but it will bring the conditions for the birth of life. Although these stars have existed for a short time, they are an indispensable link in the evolution of the universe. It can be said that without supernovae, without these massive stars, there would be no life in the universe, at least, there would be no human beings.

Because all the elements in the periodic table that are heavier than iron are produced during spectacular events such as supernova explosions or neutron star collisions.

During the Earth era, all the heavy elements such as gold rings, silver bracelets, and copper wires used in cables on human fingers came from the remains of supernovas. Because a star fuses to the point of iron, it can only fuse out elements of iron and below. At the moment of the supernova explosion, all the elements on the periodic table were produced and thrown into the universe.

Supernova explosions give these substances a powerful kinetic energy, and they spread out into the universe. Magnificent nebulae are formed. At some point, if the conditions are met, they will regroup, and if their aggregates are massive enough, they will form a second or third generation star, if they are not massive enough, they will form a rocky or gaseous planet, and if a rocky planet happens to be next to a young, healthy star, they will be supported by the abundant elements that make up the planet after they have acquired the right temperature. Life may slowly develop on it......

That's how humans were born. All the elements that make up the human body, all the elements that we come into contact with on a daily basis, except for hydrogen, which is the most basic element, all originate from the stars. Elements above iron originate from stellar fusion, and elements above iron originate from corpses that occur after the explosion of a stellar supernova.

And not just humans. All intelligent life forms in the universe are children of stars. A child of the stars in the truest sense of the word. Because it is the stars that give us everything.

That's the whole process of a supernova explosion. It is currently known. The star to which the aging ghosts are attached is only about the size of the sun, and it is not qualified for a supernova explosion. Moreover, even if it had this qualification, when would a supernova explosion occur, how could Xiao Yu be able to control it?

But Xiao Yu was in his heart. There are already rudiments of stellar weapons. That is, a weapon that destroys a star by causing it to explode, as the Guardian civilization did.

But there is one point, Xiao Yu's understanding of stellar weapons is still very shallow. It can even be said that there is no clue at all, and the stellar weapon only exists in Xiao Yu's conjecture. What Xiao Yu needs to do now is to make a guess about whether the Molian civilization has stellar weapons.

After a moment of contemplation, Lukka III said: "At present, the stellar weapons within our theoretical system can only destroy stars through the mechanism of triggering supernova explosions. Supernova explosions are caused by the sudden loss of energy support inside the star, causing the outer layer of material to fall inward and collide, and stellar weapons are also based on the same principle, there is a special tachyon, which does not react with low-density objects, but will be hindered by high-density objects, thus annihilating high-density objects. This kind of tachyon is very much in line with the concept of stellar weapons. ”

"Yes." Xiao Yu nodded and said, "A star with the mass of the Sun will have a core density of about one hundred and fifty times that of water, which is enough for this kind of tachyon to react with it." After the tachyon is launched, it penetrates the thin outer layers of the star, travels all the way to the interior of the star, and only annihilates them when it encounters the dense material in the star's core. In this way, we can hollow out the core area of a star, so that it loses the energy support of the core, causing it to fall inward under external pressure and its own gravity, thus creating a process similar to a supernova explosion. In fact, I estimate that the four stars of Tianyuan that were destroyed by the Guardian civilization had a supernova explosion because of this mechanism. ”

"This is indeed a viable stellar weapon manufacturing scenario." "But the problem we face is not one, there are many obstacles waiting for us in the process of building this stellar weapon, not only at the Jishu level, but also at the scientific level...... Judging by the current pace of scientific and technological development, it is impossible for us to create such a weapon in more than 800 years. ”

"Yes." Luca III took Luca IV's words and said, "One of the biggest obstacles is that in the face of a behemoth like a star, how big of a hole does it need to take out of the core of the star to cause it to explode?" I estimate that it will take a few trillion tons of negative matter artillery at least to achieve its goal. But...... It's just an ordinary negative matter cannon, and the power we can achieve so far is only 8,000 tons. The gap between 8,000 tons and several trillion tons is too huge. What's more, the negative matter tachyns required by stellar weapons are not the same as ordinary negative matter tachyns, and its manufacturing process is much more difficult. ”

"I know that very well." Xiao Yu said, "It is impossible for us to create a stellar weapon with actual combat significance in a short period of time. That's why I'm asking you to make an assessment of the likelihood that the Murlian civilization has this kind of technology. Well, in fact, I know very well that the Merian civilization will never have this kind of weapon, I just let you assess whether the Merian civilization has a specific method of making this weapon in theory. ”

"If they have, that's great, they have theories, we have a huge amount of action, and in fifty years, we may not be able to make this kind of weapon."

"That's my whole idea, now, you guys evaluate it."

Xiao Yu said.

Lukka III, Luca IV, and the other three scientists fell silent.

"Before making an assessment, I first need to make sure that even if the Murlian civilization really has the means to create this weapon, how do we get them to give us this technology? We are currently in a hostile relationship. One scientist first objected.

"This problem will be solved by me and Luca II, as well as the psychosocial scientists led by Luca II, and you, as scientists of the science department, do not need to think about this problem." Xiao Yu said very simply.

"Okay...... First of all, as a civilization with a deeper understanding of negative matter than we do, there will certainly be similar ideas in the Merian civilization, and their creation obstacles lie in the development of specific technological details and the degree of progress in material technology, just like ours. We have a provincial-level spaceship of the Merlian civilization, and by analyzing this provincial-level spaceship, perhaps we can find out some clues and make a clear assessment of the specific scientific and technological strength of the Melian civilization. ”

"I've got all the materials ready, you guys take a look." Xiao Yu gestured and showed the data of the provincial spaceship captured from the Molian civilization.

The room fell silent. The scientists each took out their personal computers and began to work on calculations and calculations.

"In terms of military science and technology, the Melian civilization is at least 500 years more advanced than ours...... At this level, their material technology will probably develop to ......"

"Energy technology will probably grow to ......"

In the midst of intense calculations, the conclusions of data evaluation were obtained one by one.

Each of these data is more advanced than Xiao Yu's current one, but the extent to which this excess is not too outrageous. From this aspect, it can also be seen that after reaching the relatively advanced stage of civilization, the development of science and technology is difficult.

In terms of military industry, the Molian civilization is at least 500 years more advanced than Xiao Yu, but in 500 years of development, only such a little progress has been made.

After about half an hour, Luca III stood up.

"If you look at the calculations, the possibility of having a preliminary manufacturing theory of stellar weapons in the Merian civilization is about sixty percent."

This result lifted Xiao Yu's spirits. In fact, Xiao Yu's own assessment conclusion is similar to this figure.

"Sixty percent? That's high enough to make us take a risk for it. So...... While performing the concealment jihua, let's unfold the stellar weapon jihua again. Send a communicator to the Melian civilization, get in touch with them, and then, whether it is a method of deception or a method of inducement, in short, let them cooperate with us, and in the remaining fifty years, build a negative matter cannon with actual combat ability! (To be continued......)