Chapter 1043 The Second Home Project

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It didn't take long for the expedition fleet to return to Earth.

The Supreme Council of Humanity has launched a secret plan.

Some students from the military scientific research class, as well as scientists from scientific research departments such as the Academy of Military Sciences participated.

Among them, Lang Xiaonian is the leader of the military scientific research team.

"Splitting the mine is such an important task, why is Xiao Siyan the person in charge? I don't agree!" When Niu Dazhi heard that he was going to listen to Lang Xiaonian's arrangement, he immediately became unconvinced.

"Xiao Nian, let's kick him out of the secret planning team." Eve urged.

"Brother Dazhi, this secret project is related to astronomy. I am the representative of the class, and my dad is in charge of the Academy of Military Sciences. It will be more convenient to contact me this way." Lang Xiaonian explained.

When Niu Dazhi heard this, he laughed, patted Lang Xiaonian on the shoulder and said, "Xiaonian, I have absolute confidence in your astronomy attainments. I am optimistic about you and work hard."

As soon as he finished speaking, a hand flew out and hit the wall.

"Everyone sit down, the professor is going to allocate 10% of the computing power to participate in the discussion of this secret plan." Fang Yuan slapped Niu Dazhi with a slap, let everyone sit down, and officially started the first meeting of this secret plan .

The meeting begins.

Admiral Rhodes and Fang Zhenguo walked onto the stage at the same time.

Admiral Rhodes is the representative of the Supreme Council, and Fang Zhenguo is the representative of the East China Sea Headquarters. They announced the plan together: "The purpose of gathering everyone here is to start a project 'Second Home'.

"According to the report of the Planetary Defense Crisis Prevention Analysis Group, the Earth has become the focus planet of the Milky Way, and may become the main battlefield of advanced civilizations at any time.

"Therefore, we need another terrestrial planet as a second home to continue the fire of civilization and raise our children and grandchildren.

"The first thing in the second home plan is the selection of the terrestrial planet. What kind of planet should we choose as the second home of human civilization."

This problem is indeed a comprehensive problem of astronomy, biology and many other aspects.

The most critical issue is actually the choice of star system.

Next, Chu Xingyun of the Planetary Defense Staff Department made a speech: "With the current level of human technology, we have the ability to go to very distant places to build a second home.

"Therefore, we have many star systems to choose from, and the key element is that we need to avoid the gaze of advanced civilizations.

"We need a second home that will not be discovered by advanced civilizations, so today we need the astronomers here to find the most suitable star for us."

A professor of astronomy raised his hand and asked: "I have a question. With the current observation methods of human beings, only stars can be observed outside the solar system, but planets cannot be observed. It is very difficult to find an earth-like planet." difficulty."

"About this point, the planning team has already discussed..."

Chu Xingyun replied: "The planet we need does not have to be the same as the earth's environment. With the ability of human beings to transform the environment now, the requirements for the planetary environment are not strict.

"According to the planetary data collected by the expedition fleet, the probability of human-livable planets appearing in a star system is not low. Please ask Professor Lang to explain the relevant astronomical data."

Lang Tongguang stood up, holding a document, and said, "Everyone, when I received this task, I had already done some data collection.

"I started doing astronomy research 30 years ago. At that time, the astronomy community believed that the number of stars in the Milky Way was 100 billion to 400 billion.

"Yes, we actually don't know how many stars there are in the Milky Way, because most of the stars are invisible to us."

He paused, and then said: "Let's turn to the topic, the problem to be analyzed and discussed today is to find a planet that can become the second home of mankind.

"Actually, the problem can be transformed from finding an Earth-like planet to finding a G-type star.

"Why do you say that?

"Actually, the deep-seated reasons why humans so-called need terrestrial planets,

In fact, a sun-like star is needed.

"Because only G-type stars can meet human requirements for planetary environment and climate.

"We can't see planets, but we can see stars.

"According to the research data, what is the probability of terrestrial planets appearing in a G-type sun-like star system?

"The answer is 18%, yes, in G-type star systems, the probability of terrestrial planets reaching 18%.

"This means that looking for terrestrial planets around G-type stars, and finding an average of 5 or 6 stars, can find an terrestrial planet.

"Then, the search for Earth-like planets turns into the search for Sun-like stars.

"As long as an area including at least six stars is delineated, then according to the expected calculation, it is entirely possible to find a second home for human beings."

After listening to Lang Tongguang's explanation, things did become much simpler.

"We have a star map, isn't that much simpler?" said a participant.

"No, we can't choose a second home on the star map." Chu Xingyun immediately denied this idea.

"Why?"

"First of all, the star map we got came from the Carbon-based Alliance. The accuracy of the star map cannot be determined..."

Chu Xingyun explained: "Secondly, this star map is actually a star map from 20,000 years ago, and its timeliness is questionable. Of course, 20,000 years is not a big change for the universe, so this star map is still valuable. huge.

"However, human beings must use their own power to update the star map, instead of blindly relying on this old star map.

"Third, there are only 80 million stars marked on the star map, while the number of stars in the Milky Way should be more than 200 billion.

"That is to say, the stars marked on the star map only account for 0.04% of the total number of stars, and the exploration of the Milky Way is far from complete.

"We should look for a second home for human beings in unexplored star systems, a second home that will not be discovered by advanced civilizations."

next.

Astronomers from all walks of life began to discuss in which star field they should choose the second home of mankind.

The military scientific research class also gathered together to discuss.

"First of all, particularly bright O-type, B-type, A-type, and F-type stars can be excluded, um... F-type stars may be retained, and F-type stars are at most twice the mass of the sun..."

Lang Xiaonian began to discuss with everyone: "Then the M-type stars with the smallest mass can also be given up, and this kind of stars are also difficult to observe, so don't worry about it.

"The main search targets are G-type sun-like stars, the temperature of which is around 5000K.

"In fact, it is easy to find sun-like stars, but how to prevent advanced civilizations from discovering them is the most difficult thing."

"Actually, it's not difficult. As long as it is a star field far away from the hyperspace channel, advanced civilizations will basically not approach it." Fang Yuan said with a shrug.

And it is.

The main reason why the solar system was discovered by advanced civilizations is that there is a hyperspace node leading to Tianyuan 4 in the solar system.