Coming to the moon with everyone, Nie Peng pointed to the lander in front of him, which was standing upright on the ground with four feet in support, and said:

"It's this guy, flying 380,000 kilometers away."

Before the words fell, Su Xing ran over in three steps and two steps, but after running not far, the distance alarm on his body sounded, which scared him into a thrill and immediately stopped.

"Are you in such a hurry? I can't fly again. Nie Peng and the three walked over and said teasingly.

"You're not in a hurry, I've been thinking about this thing for a long time, I've seen it in the video, and now it's hard to touch it, can you not be excited, hurry up and don't ink." Su Province urged impatiently.

Listening to Su Province's complaints, Nie Peng smiled indifferently, continued to walk over at the original speed, and circled the lander.

Su Xing was not as calm as him, and he had already crouched in front of the lander to watch, the layer of gold leaf-like skin reflecting the sunlight on his face, and his piercing eyes could not be opened.

"Su Gong, you take it easy, this thing has been in the past 4 years, be careful to break it" Di Zhexiao looked at Su Shengda's posture of climbing up, and hurriedly reminded.

"It can't be broken! This thing is sturdy! "Su Province kicked the support frame of the lander, making a clanging sound." These materials are low-stress alloys, and for this temperature difference on the moon, it will be enough to make it brittle for decades. ”

As he spoke, he stood up on the stand and studied the equipment on top of the lander.

"Su Gong, how did you say this thing was remotely controlled from the earth?" Nie Peng had already circled the lander, and at this time, he saw Su Xing standing on the stand, and also walked over, tapped the solar panel with his fingers, and asked.

"Satellite networking plus ground-based radio telescopes." Su Xing didn't raise his head and fiddled with the equipment on it, as if he was a little stunned.

"Hey, they're all good babies, but it's a pity we can't get them back"

"Let's pull it down, it would be nice if we could get a lunar rover back, and you still want to carry the landing back together?" Nie Peng listened to his words and complained helplessly.

"Okay, come down, why do you still want to buckle an antenna? Hurry up and find the Moon Rabbit. ”

"Okay, okay," Su Xing reluctantly climbed down from it, and looked back at the ground without stopping, "Greedy, all are good babies!" ”

Several people looked at his expression, it was like parting with life and death, and they couldn't stop shaking their heads.

After following the rutted marks of the Jade Rabbit, I walked a short distance to find the traces of this cruiser behind the rocks, two solar panels like wings towards the sky, and a small radar on the top towered, as if it would spin at any moment, signaling the earth.

This time, Su Province did not rush over, but looked at it with a hint of caution.

"What's wrong, Su Gong? Not in a hurry this time? Jiaying quipped.

"I'm thinking, this thing is not too small, are you going to send it directly to Guoan?"

"yes, what's wrong?" Nie Peng was puzzled

"Yes," Su Xing paced over to Jade Rabbit, "First of all, this guy has been on the moon for so long, and the things in it are almost all at the end of their lifespan, and they can't stand the toss back and forth."

Besides, it is inevitable to encounter it when moving, and I personally recommend that it is better to have less contact, after all, fingerprint dander and other things can be detected by an organic matter analysis. ”

The implication of Su Province is that this thing is exposed to the sun during the day and quick-frozen at night, and after practicing in a harsh environment for 4 years, it is better not to move if you can not move. Even if you move, you can't get started directly.

"Well, that makes sense, then let it stay here first, and after finding a good place, pass it over directly." After listening to Su Sheng's words, Nie Peng immediately understood his intentions.

"There is another question" After Su Xing circled around the Jade Rabbit, he simply sat down on the rock next to him and told the question he had just pondered.

"I've pondered a question, you say, are we going to put the base in Rumke Mountain?"

"Huh? If you don't put it, where do you put it? Aren't they all the same? Nie Peng didn't understand what he meant.

"No, the difference is huge, I'll give you an example" Su Province pointed to the earth in the sky. Go on.

"First of all, let's consider the communication problem, the current lunar communication satellite has not yet been built, even if it is the simplest satellite networking, at least three in a row, we can't wait.

Secondly, the energy problem, whether it is now or in the future, the main energy source of the base will be solar energy, but the length of day and night caused by the rotation of the moon limits the way to obtain this energy: during the day, there is too much waste. At night, not at all. ”

Nie Peng heard him say this, and nodded approvingly, he had already discovered this problem, but this was a problem rooted in the location, and he could not get an effective solution, so he was about to open his mouth to express his opinion, but he saw Su Province continue.

"Again, water source, I have thought about the direction of development in the future, no matter what direction you start, you can't do without water, but you can't carry it from the earth again and again, right?" He pointed at Nie Peng and stunned Nie Peng.

"There are many problems like this, and I didn't think of a solution to them before, but after seeing you run 900 kilometers in 3 hours today, I think we have a better choice." Su Province sat on the stone, and his words were chiseled.

"What's the solution?" The three of them asked in unison.

"Move!" Su Province looked confident.

"Moving? Do you mean moving bases? Jiaying was puzzled when she heard him say this. Doesn't moving anywhere solve the problem you said? ”

"Yes."

The answer to the question was not Su Province, but Nie Peng, who found that after such a prompt from Su Province, his previous thoughts seemed to be all unblocked, "Moving to the North Pole can solve these problems." ”

After speaking, he looked at the puzzled Di's father and mother and daughter, as well as Su Xing, who looked slightly surprised, and then said:

"Let's talk about communication first, now the satellite above our head is in a polar orbit, due to the rotation of the moon, every time the satellite goes around, the longitude will be different from us, that is to say, if the satellite does not change its orbit, the base and the satellite will meet once every half a month, but if we move to the polar region, the satellite will pass over our head every time it goes around.

Speaking of energy, there is no atmosphere on the moon, whether at the equator or in the polar regions, a panel facing the sun can convert as much energy. If we can find the Pirry crater, then we can almost say that we have an inexhaustible source of energy. ”

"What do you mean by that?" Di Zhexiao, who heard some eyebrows, vaguely realized what Nie Peng meant.

"The sun can be seen almost all year round on the hill in the Pirry crater, and if we build a solar power plant there, it will be of great help in the future." It was Su Province who answered, and he followed Nie Peng's meaning and said the answer.

"Yes, there is no better place to build a power station than there." Nie Peng nodded and agreed with Su Province's meaning.

"What about the water? You're not going to tell me there's water in the Arctic, are you? Jiaying asked again.