Homo sapiens.

Chapter 601
Inside the Ceylon Island Headquarters Building of the Space Division.

Dr. Mikoyan is discussing with a group of executives how to deal with the alien spacecraft.

Meng Haiyang, the person in charge of the Interstellar Exploration Office, spread his hands helplessly: "Minister, if we want to launch another Cicada-class spacecraft, there will be too little time!"

Chen Jianxiong, who came to observe the meeting, did not agree with Meng Haiyang's idea: "No, I suggest launching a few more cicada-class spaceships there. On the one hand, it can be just in case; You can continue to travel to deep space and explore more distant areas."

Hearing what Chen Jianxiong said, Mi Gaoyang thought for a while, then nodded: "No problem, isn't it just a few cicada-class spaceships, we can still squeeze out part of the production capacity."

In fact, the cost of the Cicada-class spacecraft is not high. The part that really increases the cost of the Cicada-class spacecraft is the propelling hydrogen bomb carried by the spacecraft.

After all, the cost of thousands of miniature hydrogen bombs is not cheap. If it were not for Homo sapiens company’s heavy water enrichment of seaweed, which can lower production costs, the consumption of thousands of miniature hydrogen bombs on this cicada-class spaceship is really not something ordinary forces can afford of.

Even America, which was in its heyday in the past, couldn't afford a spaceship like the Cicada-class spaceship. After all, refining heavy water and making hydrogen bombs is a very uneconomical investment for a capital force.

It is only in the way of Homo sapiens that we can invest regardless of cost.

Mikoyan and the others discussed for a while and decided to launch three more Cicada-class spacecraft.

The head of the Space Equipment Office also said there was no problem.

After all, the production line of the Cicada-class spacecraft is still in production. There is currently one in stock and one is under construction. The factory can produce one Cicada-class spacecraft every three months on average.

But now that the situation is urgent, they plan to increase production, change the previous one shift per day to four shifts per day, and directly increase the manpower by three times. It is estimated that the construction of two cicada-class spacecraft can be completed in less than two months.

After discussing the production of the Cicada-class spacecraft, another organization under the Space Business Department, the Cosmic Observation Office, also stood up to speak at this time.

The person in charge is a rare white-haired old man. Obviously, this person was already very old before he joined Homo Sapiens. Even if he used various life-extending technologies, he could only increase his lifespan by part of it. There was no way to completely rejuvenate his appearance.

The old man didn't care too much about this, especially for the old-school scientists who study cosmic astronomy. They have more theoretical research in this field and rarely involve open and secret struggles between various forces, so their ideas are more "naive".

This old man was from Lucia's side before, and he was dug out by Mikoyan.

In Homo Sapiens' Space Division, the proportion of employees who came from Lucia is very high, reaching about 17.3%.

Therefore, the space business department is somewhat Maoxiong's style.

The old man stood up: "Dear colleagues, our Cosmic Observation Office has some opinions on the situation of this alien spacecraft."

Everyone did not make a sound, quietly waiting for the next step.

The old man continued: "Backing back from the flight direction of that alien spacecraft, we can roughly lock on the route that the other party traveled before, but in that route area, the nearest planetary system also reaches 18.4 light-years. Based on this Judging from the current speed of a spacecraft at 15 kilometers per second, it will take 36.8 years to fly, is this possible?"

is it possible?

Everyone was lost in thought.

Even if the alien spacecraft used to be 10 times faster than it is now, it would take 3.68 years to reach its current position.

The old man didn't hide it either, and continued:
"From the detection data of Cicada-class 004, I found that this spacecraft was very likely to use a nuclear fission power system, but the radioactivity in its core is almost gone. In its graphite buffer layer, the carbon-14 magnetic field feedback Equivalent to about 16% of the forecast model..."

Everyone immediately realized that the half-life of carbon 14 is about 5700 years.

As a buffer layer of a nuclear fission reactor, carbon 14 will definitely appear in the graphite nest due to the absorption of thermal neutrons.

But now in the graphite nest in the alien spacecraft, the magnetic field feedback of carbon 14 is only equivalent to 16% of the prediction model, which can only show a conclusion: the carbon 14 in the graphite has passed about two and a half half-life.

This also points to the fact that the nuclear reactor of the alien spacecraft has stopped working for at least 1.3 years.

But the old man didn't finish his sentence, he continued to add:
"If it's just that carbon 14 is not found, it doesn't mean anything, but I found the existence of another element in another analysis report. Although the content is already negligible, the distance between the cicada-level 004 is relatively close. , or found a part of the weak magnetic field signal, this element is plutonium 239."

Many people who turned their heads quickly discovered the key point in an instant.

The half-life of plutonium-239 is 2.41 years.

There are still traces of plutonium 239 remaining, which means that the downtime of the nuclear reactor of the spacecraft must not exceed 2.41 years.

Plus the residue of carbon 14 found above.

It can be seen from this that the downtime of the nuclear reactor of the alien spacecraft should have been between 13000 and 24100 years ago.

The old man came to a conclusion: "In other words, there is a high probability that all the creatures in this spaceship have died."

Another executive shook his head: "Not necessarily, maybe the other party has body freezing technology, and the temperature inside the alien spacecraft is very low at this time, there is a high probability that alien creatures will be frozen in the spacecraft."

The old man did not refute this, because it was indeed very possible, and he said another thing:
"I have another discovery, that is, the alien spacecraft itself is very complete. According to the general laws of space travel, if you do not take the initiative to slow down in this kind of empty interstellar space, the spacecraft will basically not slow down too much."

Of this point, all the employees of the space business department present are naturally very clear.

"Since the speed of the spacecraft cannot be slowed down too much, let's calculate with the limit speed of 30 kilometers per second. If this spacecraft flies from a planetary system 18.4 light-years away, it will take 18.4 years. The nuclear fuel of the spacecraft can support so long?"

Hearing this, everyone was thoughtful.

Even if you save money and freeze your body all the way, based on the current detection data, the 8 nuclear reactors and 344 plutonium nuclear batteries found, the fuel of the spacecraft will not last for 3 years.

After all, only 239% of the plutonium-33 fuel in those nuclear batteries is left, and there is still a small amount of plutonium-239 left in the reactor residue.

This shows a problem. After the nuclear reactor stopped working, the nuclear battery continued to operate for a period of time.

It can be seen from this that the spacecraft flew from a certain planet to the solar system about 4.3 to 5.41 years ago.

After determining the time range and the speed range, it is natural to determine how many light-years away from the solar system the other party's starting planet is.

The alien spacecraft has been flying for 4.3 to 5.41 years, during which the speed is about 15 kilometers per second to 30 kilometers per second.

It can be concluded that the voyage of the alien spacecraft may be around 20 trillion kilometers to 51 trillion kilometers.

This distance is far, indeed quite far, but on a cosmic scale, it is almost close at hand.

After all, a light year is only 9.46 trillion kilometers.

From 20 trillion kilometers to 51 trillion kilometers, it becomes light years, which is 2.11 light years to 5.39 light years.

This scale is indeed close at hand.

　Thank you for your support (ω｀), please subscribe, collect, monthly and recommendation tickets.

　　
　
(End of this chapter)