Zhang Yuan carefully pondered these astronomical data. He saw a circle of yellow and purple on Glitzer 581g. This circle of yellow and purple is widely distributed in the dusk line, and it seems very neat, unlike it is produced naturally.

Because the spacecraft is still seven astronomical units away from the planet, the photo resolution is not high, and I don’t know what it is.

"Professor Fan, have you found traces of the activity of smart life?" Captain Zhao also saw this photo, pondered for a while, and asked.

The astronomer immediately replied: "...There is no intelligent life discovered yet. The detector we launched is still on the way. But for now, no regular electromagnetic waves are found in the universe."

"No large buildings on the surface of artificial satellites, nor have they been observed..."

Zhang Yuan couldn't help asking: "What are these yellow ones? Such a regular global wonder cannot be formed naturally, right?"

Professor Fan said: "These abnormal colors are likely to be large quantities of alien plants, but the colors are slightly different from those on the earth. The large areas of our earth's original forest are green, while the plants here are yellow and purple..."

"We suspect that these lives do not need oxygen, and they obtain energy through reactions such as sulfur oxide and nitrogen oxide. This breathing method is essentially different from our aerobic breathing."

Alien life?

Zhang Yuan's heart jumped heavily, and many people sitting around him couldn't help but discuss in a low voice.

Especially some biologists, compared with the sense of crisis, they are mostly excited. For them, any alien life has strong reference and guiding significance for issues such as the origin of life.

"These planets have all the stars locked by tidal locks. The side facing away from the stars is too cold, and the side facing directly facing the stars is too hot. The dusk line is neither lukewarm nor hot, which is a very good place to live."

"The large community of life located on the dusk line can be subjected to eternal light and has a suitable temperature..."

"The strength of life is really incredible."

"Ahem, everyone, calm down first, and in a few days, the satellite will be able to transmit first-hand information back...but I think..."

The professor said a lot of things, and he meant that according to the current data, the probability of not having smart life is greater. Even if there are smart life, it is likely that it is just some natives, and it is not worth fearing.

Anyway, as long as these lives do not have the ability to threaten humans, there is nothing to worry about.

After humans develop to a certain stage, they will definitely have to conduct more detailed on-site investigations on the life of this planet.

Zhang Yuan and many people here breathed a sigh of relief. What they were most worried about was that there was a very strong interstellar civilization in this star field... Even if the probability of this is very small, once this civilization exists, their ship will undoubtedly become a turtle in the jar.

"It is impossible for civilization to develop into the space age without electromagnetic waves or satellites, right?"

"yes."

Listening to the discussion, Zhang Yuan stood up and spoke: "To be cautious, we should block the radio waves of the spacecraft as much as possible until more specific information appears."

The proposal was quickly unanimously adopted.

Next, after a series of discussions, combined with the various mechanical equipment carried on the spacecraft, everyone selected the No. 1 satellite closest to Glitzer 581g for development.

The six major planets are named b, c, d, e, f, g, etc. This name is named in the order of human discovery. However, the satellites attached to these planets are not named. For simplicity, people directly called the largest satellite of the 581g planet No. 1.

The satellite has a diameter of nearly 4,000 kilometers, is bare, with a surface full of craters, and an orbital period of about 14 days.

In addition, due to tidal locking, its rotation period is equivalent to an orbital period.

The reason for choosing satellite No. 1 is that it is a moderate distance from the star, and even if the star bursts out with flares, the spacecraft will not be affected too much. And theoretically, according to the planet's formation conditions, it has all the resources needed by humans, including various common metals, rare elements, radioactive elements, etc.

The only disadvantage is that it is closer to the planet of life, and there may be some potential threats. Life always has endless possibilities, so who knows what strange life will be inside?

However, the distance between the satellite and the planet is 360,000 kilometers. If something really happens, there is still time to react. Zhang Yuan did not believe that any creature could use his body to break free from the gravity of the planet and jump to the Earth Age.

Therefore, being closer to the life planet is not necessarily a disadvantage, but it may also be an advantage. At least it will be much more convenient for scientific research in the future.

Compared with other planets that may have irreparable defects, No. 1 is already a pretty good planet.

"But, Lao Zhang, at this rotation speed, if a space elevator is placed on this planet, the height of the synchronous track will be very exaggerated!"

Ye Kaifu whispered under his seat: "The rotation speed of this planet is too slow. I just calculated it casually. The height of the synchronous orbit is more than 80,000 kilometers. We don't carry so much raw materials at all... What should we do?"

"No, you've calculated it wrong..."

Zhang Yuan smiled and pointed at the right direction: "In this case, the laying of space elevators requires consideration of the huge gravity of another planet. Therefore, our spacecraft will not stay in the synchronous orbit directly..."

"You calculate again, the gravity of the satellite will offset the gravity of the planet, and then use the rest to calculate..."

“What you said makes sense!”

Ye Kaifu suddenly realized, "I haven't touched this thing for several years, and I have forgotten it a little. Fortunately, I didn't ask a question directly, otherwise it would be embarrassing."

He calculated carefully and found that it only took 8,000 kilometers to get the orbital height, and he couldn't help but feel happy secretly.

This distance is good, and the construction difficulty of space elevators has been greatly reduced, so there is no need to worry about anything.

As for energy issues...

"The planet should be able to find enough uranium mines to support the development of mankind in the first few steps."

Moreover, when there is sufficient light, you can consider laying solar panels on the sunny side of the planet to replace nuclear energy. Solar panels are a very cheap and simple technology. Zhang Yuan feels that with the equipment currently carried by the spacecraft, it can be mass-produced in one or two years.

After some discussion, Captain Zhao made a passionate decision and said: "... Then it was decided to open our first landing point on satellite No. 1!"

...
Chapter completed!