Chapter 205
When I walked into the Conference Hall, I found that many experts in the room were pleased. The atmosphere of the discussion was very enthusiastic. Zhang Yuan quickly found a seat and took a seat.
"Everyone, please don't be impatient! The most important thing is to choose a suitable planet as our main development base...There are currently six planets observed, plus the number There are more than ten planets to choose from, but we must find the best and most suitable one for development!" In the Great Conference Hall, Captain Zhao said solemnly, but in a tone The excitement in it is hard to conceal.
"...Don’t take it lightly, everyone. Then, whether it is economic development, population growth, industrial development, and the promulgation of various policies..."
"We There is still a long way to go!"
All the members in the Conference Hall geared up, and there was a lively discussion.
All kinds of policies, including economic policies, cultural policies, social welfare, work plans, etc., have been discussed for a long time and have basically been completed. Anyway, when the time comes is promulgated step by step, it will do.
Now the most important thing is to choose 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 3200 degrees Celsius, and the light intensity is only 1.3% of that of the sun. Because the stellar gravitational force is small, the distribution of the 6 planets is closer to the star, a bit like a solar system that has shrunk down.
According to astronomical data, the two outermost planets are Jupiter-like planets, which are gaseous planets. They have relatively large masses, and there are several satellites with thick ice layers around them.
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".
Because the inner galaxy is too hot, it is difficult for molecules with smaller masses such as water and methane to gather. Therefore, the area close to the star can only be formed by high melting point materials, such as iron, nickel, aluminum, and stone silicate.
While Jupiter-like planets are formed farther away from the freezing line, the water resources on these planets are abnormally abundant. Since elements with smaller atomic weights in the universe occupy the overwhelming majority, the masses of these Jupiter-like planets can often grow large enough. After the mass grows large enough, they can capture the lightest and most abundant elements such as hydrogen and helium, making the mass larger.
Essentially, there is a rocky core in the center of a Jupiter-like planet, but its atmosphere is thick enough to cover up the most core things.
Just a few minutes of discussion, and soon, an astronomer stood up and said: "Everyone, please listen to me first!"
The Conference Hall gradually quieted down .
"If you choose a satellite of a gaseous planet as the landing point, for example...this satellite."
A huge cratered ice ball with a diameter of about 100% is displayed on the screen. There are three thousand kilometers, a bit similar to Europa.
"...We can easily obtain more nuclear fuel and water resources. Just like the Europa industrial base in our solar system..."
"At present, the spaceship has gone through a series of After the deceleration, the fuel reserve in the warehouse is not sufficient, it is already below 8% of the reserve line..."
"The quality of Earth Era is too great. Every time the mothership is moved, it will cause fuel The huge consumption of electricity. So I suggest that the first base site selection must be selected."
"Of course, if the main base is selected, according to the current level of power consumption, these nuclear fuels can still be used. It can be used for about three thousand years."
Zhang Yuan frowned.
The figure of three thousand years sounds very exaggerated, but the prerequisite is the current level of energy consumption.
With the rapid development of industry, the use of electricity will definitely increase exponentially, and these nuclear fuels will soon be insufficient. For example, metal smelting and industrial production consume huge amounts of energy, and the increase in population will consume more energy. At present, it is only the lowest standard of subsistence.
I saw the astronomer continue: "If you rely on a Jupiter-like planet to act as a nuclear fuel store, of course you don’t have to worry about energy issues."
"However, choose The satellites of the Jupiter planets are used as landing points. Due to the formation of these planets, they may lack certain minerals with heavier atomic weights, such as rare metals, such as scandium, yttrium and lanthanides."
" The lack of these elements will cause a huge obstacle to the development of industry. We are always impossible to dig deep into the core of the earth, whether it is technical or economic, it is impossible to do so."
Sit Engineer Ye Kaifu on the side tapped the table lightly with his fingers, and was calculating the gains and losses. He whispered: "Compared to more easily accessible energy, I still prefer more easily accessible resources."
"Energy does not have to use nuclear fusion, fission energy is also possible... even Solar energy is all right! Don’t think that nuclear fusion is higher than nuclear fission."
"I think so too...Energy, only economical and cheap is the most suitable." Zhang Yuan nodded .
I saw the scientist on the stage continue: "The second choice is the two planets in the innermost ring. Especially the planet closest to the star, it’s not too much to call it a metal planet. !"
"We can easily find all the scarce metal elements."
But this planet also has shortcomings. Water resources are relatively small and organic matter is scarce. Whether there is uranium or not It's another matter.
"...I have to say that the central star is a variable star, its brightness and electromagnetic radiation are unstable, and flare will erupt from time to time. The revolution period of this planet is very short, only one circle around the entire star 4 days, very close to the star, the economic loss caused by the stellar flares must be taken into account..."
these all are difficult points.
Zhang Yuan frowns, when the star explodes, as long as the defensive measures are done well, there is no big problem. The most troublesome thing is that all kinds of remote communications will be interrupted immediately. If communication is interrupted during an important task, the loss can be great.
"...As for the two planets, which seem to have a lot of water resources and atmosphere, and are located in the habitable zone, they are temporarily out of our consideration."
"But , There is a third option, we can consider a satellite of Gliese 581g."
"One of the satellites is about the size of the moon...or even slightly larger!"
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A bumpy planet appeared on the screen again.
The members of the scientific council are relatively rational people, although the two planets have a large amount of liquid water, they look beautiful in the environment and are suitable for human survival. Even one of them, 581g, from a certain angle, is simply an enlarged version of Earth's twin!
Many people are already on the Internet, cheering and want to travel to aliens.
But...
According to atmospheric spectrum analysis, the poison qi body mixed in the atmosphere, including hydrogen sulfide and sulfur dioxide, has a concentration as high as 0.02%! This is enough for humans to eat a pot.
Moreover, the mass of this planet is 3.1 times that of Earth, and the atmospheric pressure is about 1.7 times that of Earth. Under this atmospheric pressure, humans will feel very uncomfortable and must wear a spacesuit at any time to ensure normality. Survive.
So, since there is no way to breathe the surface air freely, you still have to carry all kinds of survival equipment, it is better to land on a planet that has no atmosphere and is easy to develop.