At this moment, even if scientists have powerful observation equipment unprecedented in the history of civilization, they cannot find that nebula at all.
Zhuang Yunwei's judgment received a considerable amount of support in the face of this ironclad fact.
So……
Zhao Changxing looked at the civilization that was already at the edge of the outer solar system. It had developed for nearly 700 years, had a population of more than 6.6 million, and a space fleet composed of more than 100,000 soldiers.
It is strong but weak, prosperous but also in decline.
But no matter who it is, one can easily draw a conclusion.
It is impossible for human civilization at this moment to fight against a powerful civilization that can span the vast distances between stars and come from afar.
Boundless despair is like an ocean drowning people. But Zhao Changxing still looked calm and seemed to have no negative emotions.
"Awaiting further analysis."
The nebula lit up for a little more than three days in total. For most of the past three days, people have used the most powerful observation equipment at their disposal to focus on it, trying their best to obtain all kinds of information contained in it.
At this moment, a large team of scientists is analyzing these data.
Five days later, Zhuang Yunwei, chief scientist of the Academy of Military Sciences, once again came to the human government building.
Today, he will report to all high-level human beings, headed by Zhao Changxing, including members of all civilization management committees and war committees.
"According to our analysis, we believe that if the thing that 'lit' this nebula is really an ion thruster, then the fleet we speculated most likely does not exist. What does exist is more likely It’s a spaceship. Yes, there’s only one.”
Zhuang Yunwei explained his basis in the most straightforward language possible.
"First of all, the coordination in different areas is too consistent. It's like this fleet is completely the same whole, accelerating and decelerating at the same time, without any lag between multiple parties. Considering the communication delay caused by the distance between each other, this This action is extremely difficult.
Secondly, even if they can do the above, their forward trajectories also maintain a high degree of coordination, which is not easy to explain. After all, it is a nebula, and its constituent materials will inevitably have random effects on different spacecrafts, causing their routes to deviate. But we didn't observe this either.
To sum up, we are more inclined to believe that there is only one spaceship. "
This obviously means more stuff and more information.
The first thing people feel about this is shock.
One spaceship, just one spaceship, lit up a nebula with a range of more than one billion kilometers?
Just how big does it have to be, and how high its injection power is, to do this? And how powerful must be the technological strength of a civilization that can create such a spaceship?
Zhuang Yunwei continued: "According to the information obtained from deep space civilization, we already know that the Moyunlitar civilization has mastered 'antimatter annihilation', an energy source method that is far more efficient than nuclear fusion. Based on this, we assume that On average per unit area, the jet power of the ion thruster manufactured by the Moyun Litar civilization is one order of magnitude higher than ours. Then extrapolating this and substituting the jet power received by this nebula, we can calculate that the spacecraft The injection area is at least about 10 square kilometers."
10 square kilometers!
This number made all the high-level civilization officials who listened to the report feel breathless.
You know, this is just the injection area of the ion thruster! What is obvious is that the spacecraft cannot be designed with only one jet. Therefore, these 10 square kilometers must be spread out.
So, how much tail area is needed to accommodate a spray area of 10 square kilometers spread out?
Calculated based on current human spacecraft design, it is at least 200 square kilometers. Even though Moyun Litar's technology is relatively advanced, there is still a limit.
Taking all things into consideration, its tail area may be between 80-120 square kilometers.
If it is a square, then its area is between approximately 9 kilometers * 9 kilometers and 11 kilometers * 11 kilometers.
That's not counting its length.
If it has a bottom area of 9*9 to 11*11 and a length of 20 kilometers, isn't it too much?
Just thinking about such a huge spaceship will make people feel desperate.
"Another thing to note is that if the jet direction of this spacecraft is facing our galaxy, then it is obvious that this spacecraft is in the process of decelerating at this moment. As for why it is decelerating, I don’t need to say more. ."
The atmosphere in the conference room became a little heavier.
Why slow down? It must eventually be anchored in the solar system.
Zhao Changxing was thinking quickly at the moment. However, what he was thinking about was not about the technology or power of this spaceship, but about another thing.
He knocked on the table gently, attracting everyone's attention.
"I'm very curious. The Moyunli Tar civilization only sent one spaceship. What was its purpose?"
Zhao Changxing's words caused people to think deeply.
Does the Moyun Litar civilization think that just one spaceship can wipe out human civilization?
Everyone here is sure that the answer will not be that simple.
The first point is that the Moyunlitar civilization has the ability to detect traces of the existence of intelligent life in the solar system in the Lalande 21185 galaxy, which is several light-years away, and can roughly analyze its technological level.
The method is also very simple, just analyze the spectrum of the earth's atmosphere when the earth is transiting the sun.
Observing the sun from the Lalande 21185 galaxy, when the earth moves between the two galaxies, the sunlight will reach the Lalande 21185 galaxy after passing through the earth's atmosphere. The changes in the Earth's atmosphere caused by the sun's rays can reveal the elemental composition of the Earth's atmosphere.
By analyzing this and the content of some trace elements, such as hydrogen sulfide, we can basically confirm whether there is intelligent life on this planet. If so, what is the approximate technology level?
Or, if the technological strength of the Moyun Litar civilization is strong enough, even if there is no transit, they can directly observe the sunlight reflected by the earth's atmosphere to draw this conclusion.
In short, human existence cannot be hidden.
But at the same time, the Moyun Litar civilization will not regard human civilization as an opponent at all. Even at this moment, the most intelligent people in the entire civilization are thinking about how to fight them.
Because human civilization is simply not qualified.
They would think that the process of a black hole swallowing the sun is enough to completely destroy such a backward civilization. Even if a few survivors occasionally reproduce, so what?
Human civilization in its heyday could be wiped out with a wave of hands, so how could we still be afraid of a few survivors?
Therefore, it is not that the Moyun Litar civilization is too arrogant to think that human civilization can be destroyed by just sending a spaceship. More likely, they simply don't care about human civilization.
They ignore human civilization.
This spaceship is simply here for "mining".
This is a mining spacecraft, at best an armed mining spacecraft. It is not a professional combat spacecraft.
Perhaps it is because the resources of the Lalande 21185 star system have not been fully digested and absorbed, but the minerals that exist in the black hole accretion disk are needed at the current stage. At this stage when the main body of civilization has not yet set sail, we dispatched We bought a mining spaceship and collected some of those minerals to take back for emergency use.
That's why this happens.
"This is our chance."
Zhao Changxing pointed this out.
Zhuang Yunwei lowered his head and thought for a moment, then said again: "Even if it is a mining spaceship, I don't think we, our fleet, can defeat it."
"But our enemy has at least changed from an entire civilization to just a spaceship, right?"
This is a fact. But another fact is that for people who jump from buildings, there is no difference between jumping from a 100-story building and jumping from a 20-story building.
"Professor Zhuang, can you analyze how long it will take to reach our solar system if it is indeed a spacecraft?"
"We have relevant data." Zhuang Yunwei quickly flipped through the document in his hand and said: "Based on the luminosity change data of the nebula, we roughly calculated its deceleration rate and current speed. The conclusion is that it is about 12-18 Years later, it will cross the orbit of Sedna. By then, if its direction remains unchanged, it will probably pass by a distance of 820 million kilometers from us."
"Is it possible that this mining spacecraft flew directly to the sun and started collecting minerals, completely ignoring us and ignoring us?"
Zhao Changxing whispered: "If it were me, I wouldn't like a bug flying next to me when I'm working."
Zhuang Yunwei said: "So what if it ignores us? You know, the main body of the Moyun Litar civilization will come sooner or later. They are a wandering civilization. After digesting the resources of the Lalande 21185 galaxy, they will inevitably go to the next place. A star system. Since we can go anywhere, why not come to the solar system?"
Zhao Changxing knocked on the table again to stop people's discussion. After that, he looked at Zhuang Yunwei: "Professor Zhuang, I hope you can imagine the future development of science and technology, and roughly divide the different civilizations that may exist in the universe into a level according to their technological level and strength. Can you do this? "
Zhuang Yunwei said: "Scientists in the earth age have already done this. The Kardashov index is."
Zhao Changxing shook his head: "This is too general. I want something more detailed. I want to know what the iconic technologies of different levels of civilization are, what capabilities they have, how wide their scope of activities is, and where the basic theory has reached. ."
"good."
