When he walked into the conference room, he found that many experts present were overjoyed, and the atmosphere of the discussion was very warm, so Zhang Yuan hurriedly found a seat and sat down.

"Everyone, please be calm! The most important thing is to choose a suitable planet to develop as our main development base...... There are currently six planets observed, and counting the huge number of moons, there are more than a dozen planets to choose from, but we must find the best one for development! ”

In the large conference room, Captain Zhao said solemnly, but the excitement in his tone was difficult to hide.

“…… Don't take it lightly. Next, whether it is the development of the economy, the growth of the population, the development of industry, and the promulgation of various policies......"

"We still have a long way to go!"

All the members in the room were gearing up, and there was a lively discussion.

Various policies, including economic policy, cultural policy, social welfare, work plan, etc., have been discussed for a long time and have basically been completed. Anyway, when the time comes, it will be promulgated step by step.

The most important thing now is to choose the planet, the most important step.

The mass of this central star is only 0.31 times that of the Sun, the surface temperature is about 3,200 degrees Celsius, and the light intensity is only 1.3% of that of the Sun. Because the gravitational pull of the star is smaller, the distribution of the six planets is closer to the star, a bit like a solar system that has shrunk by one.

According to astronomical data, the outermost two planets are Jupiteroids, that is, gaseous planets, which are relatively massive, and there are several moons with thick ice in the vicinity.

The remaining 4 planets are all terrestrial planets.

The main reason for the formation of such a structure similar to the solar system is the "nebula theory".

Inner galaxies are too hot for smaller molecules such as water and methane to gather. Therefore, regions that are relatively close to the star can only be formed by substances with high melting points, such as iron, nickel, aluminum, and stony silicates.

Jupiterans, on the other hand, form farther away beyond the freezing line, and these planets are unusually rich in water resources. Because the universe has a large majority of elements with small atomic weights, the masses of these Jupiter-like planets tend to grow large enough. When the mass grows large enough, they are able to capture the lightest and most abundant elements, hydrogen and helium, making them even more massive.

Essentially, Jupiteran planets will have a rocky core in the center, but its atmosphere is thick enough to hide the most core.

It went on for a few minutes, and soon one of the astronomers stood up and said, "Guys, please listen to me first!" ”

The room fell silent.

"If you choose a moon on a gaseous planet as the landing site, for example...... This one satellite. ”

The screen shows a huge, cratered ice hockey ball about 3,000 kilometers in diameter, somewhat similar to Europa.

”…… We have easy access to more nuclear fuel and water. Just like Europa in our solar system......"

"At present, after a series of decelerations, the fuel reserves in the warehouse are not sufficient, and they are already below 8% of the reserve line......"

"The mass of the Earth Age is so great that every time the mothership is moved, it will cause a huge amount of fuel consumption. Therefore, I suggest that the site selection for the first time must be selected. ”

"Of course, if the main base is chosen, at the current level of power consumption, these nuclear fuels can be used for about 3,000 years."

Zhang Yuan frowned.

The figure of 3,000 years sounds exaggerated, but the prerequisite is the current level of energy consumption.

With the rapid development of industry, the use of electricity is sure to rise exponentially, and these nuclear fuels will soon run out. For example, the energy consumed by smelting metals and industrial production is huge, and the increase in population will also consume more energy, which is currently only the minimum standard of subsistence.

The astronomer continued: "If you rely on a Jupiteroid planet to act as a nuclear fuel reservoir, of course, you don't have to worry about energy. ”

"However, the choice of Jupiter-like moons as landing sites, due to the formation of these planets, may lack certain atomically heavy minerals, such as scarce metals such as scandium, yttrium and lanthanides."

"The absence of these elements is a very significant obstacle to the development of industry. It's never possible to mine deep into the earth's core, either technically or economically. ”

Engineer Ye Kaifu, who was sitting on the side, tapped the table lightly with his fingers, thinking about the gains and losses. "I'm leaning towards more accessible resources than more accessible energy," he whispered. ”

"Energy doesn't have to be nuclear fusion, fission energy is also possible...... Even solar energy does! Don't think that nuclear fusion is higher than nuclear fission. ”

"That's what I thought, too...... Energy, only economical and cheap is the most suitable. Zhang Yuan nodded.

I saw that the scientist on the stage continued: "The second choice is the two innermost planets. Especially the planet closest to the star, it is not too much to call it a metal planet! ”

"We can easily find all the scarce metal elements."

But this planet also has its shortcomings, there are relatively few water resources, there is a lack of organic matter, and whether there is uranium ore or not is another matter.

“…… It has to be said that the central star is a variable star, its brightness and electromagnetic radiation are unstable, and flares will break out from time to time. The planet has a very short orbital period, only 4 days around the entire star, and it is very close to the star, and the economic damage caused by the flare of the star must be taken into account......"

These are the difficult points.

Zhang Yuan frowned, when the star erupts, as long as the defensive measures are done well, there is no big problem, and the most troublesome thing is that all kinds of remote communications will be interrupted immediately. If communications are interrupted in the middle of an important task, the losses can be significant.

“…… As for the two planets that appear to have a lot of water and have an atmosphere, and are located in the habitable zone, they are not on our radar for the time being. ”

"However, there is a third option, and we can consider one of the satellites of the Gliese 581 G."

"One of the moons, about the size of the moon...... It's even a little bigger! ”

A potholed planet appears on the screen again.

The members of the Council of Science are more rational people, although the two planets have a large amount of liquid water, and the environment seems to be beautiful and suitable for human survival. Even one of them, which is 581g, is simply an enlarged version of the Earth's twin from a certain angle!

Many people are already on the Internet, cheering for the desire to travel to the extraterrestrial.

But......

According to the analysis of atmospheric spectroscopy, the highly toxic gases mixed in the atmosphere, including hydrogen sulfide and sulfur dioxide, have a concentration of up to 0.02%! That's enough for a human to eat a pot.

In addition, the mass of this planet is 3.1 times that of the Earth, and the atmospheric pressure is about 1.7 times that of the Earth.

Therefore, since there is no way to breathe the surface air freely, it is better to carry various survival equipment, it is better to land on a planet with no atmosphere and easy to develop.