It is a liquid in the ice, and when it is sprayed out, it solidifies into a snowflake...... This seemed to be one of the physical properties of a certain gas, but Ye Han couldn't remember what it was for a while. Pen, fun, and www.biquge.info

Ye Han's mind was full of doubts, and he shook the ice cube in his hand, as if he could hear the sound of liquid flowing.

Fearing that the liquid gas would expand and break the ice, he carefully lowered this special ice sample into the distance, and when he returned to the sampling site, he expanded the mining face and dug deep into the ice.

When Duan Zhiyang rushed over to take ice samples, Ye Han had already dug out an ice pit more than two meters deep, and four large ice cubes that were hollow and containing liquid were neatly placed on the edge of the pit.

A physical explosion is also an explosion, in order to avoid danger, Ye Han deliberately cut the ice cube into a larger size and used a thick ice wall to bind the liquid in it.

Duan Zhiyang was dumbfounded: "What is this?" ”

Ye Han smiled and crawled out of the ice pit: "It should be liquid air." ”

"How is that possible?" Duan Zhiyang's whole person was not good, "How did you get in?" ”

"I want to know too."

Duan Zhiyang asked suspiciously, "What are you digging so much for?" ”

"There should be someone on the ground who is interested in this thing, cut it out and put it away first, and see what the ground thinks." Ye Han said.

"Okay, I'll find a place to put it alone when I go back."

"Don't forget to say it, don't let Xu Hua stuff the machine." Ye Han instructed.

"Don't worry, how could I make such a low-level mistake!"

The lunar rover loaded with ice samples first sent Ye Han to the next sampling point, and then returned silently.

Not long after, according to the instructions of the ground command center, the temporary base cut open the ice bubble to analyze the composition of the liquid content, and found that the liquid in the ice was nothing more than a mixture of liquid hydrogen and liquid helium, and also contained some solid nitrogen, which was considered a mixture of three gases.

Ye Han expressed great regret about this, why was there no liquid oxygen found in the vacuole?

However, what Ye Han didn't expect was that this kind of vacuole was not an isolated phenomenon, as the investigation progressed, the three groups found more vacuole structures, and the liquid components frozen in the ice were also diverse, some with a single composition, and some with complex compositions containing a variety of gases, and all the liquids in the ice bubbles had only one thing in common, that is, the melting point was lower than the ambient temperature.

Ye Han, who received the news, suddenly realized that eighty percent of the air columns spewed out of the ice cracks contained solid nitrogen, so there would be a scene of snowflakes fluttering.

This was originally just a small episode in the work, but a few days later, Ye Han dug up another opaque ice block in the middle at the sampling point.

The area where the ice sample was collected belonged to a high-quality ice area, and the quality of the water ice was excellent, and the white things in the ice immediately attracted Ye Han's attention......

The magical ice lake once again refreshed Ye Han's three views, and he couldn't help but wonder what else was frozen in this seemingly calm ice lake.

As a result, that afternoon, he sent out nitrogen ice that was sealed in ice.

Ye Han was already unfazed by this, unless he dug out an alien from the ice lake, no matter what was in the ice, he felt that he would not be surprised again. But his discovery still stunned all the astronauts, and also thundered the command center, dry ice and nitrogen ice can still explain, but experts racked their brains and could not determine under what conditions the ice sealed the liquid gas in the ice. But experts have come up with two hypotheses, the small impact theory and the primitive environment theory, to explain this phenomenon.

However, at this time, only a very small number of people care about this kind of problem, and even experts in the aerospace industry are more concerned about whether organic matter can be found in the ice, rather than how many foreign objects are wrapped in the ice.

If organic matter can be found in the glacial lake, it will be of great significance for the study of biological origins.

It's a pity that the northern capital only pays attention to the construction progress of the lunar base, and whether there is gas or mud in the ice is not considered by politicians at all.

Politics is so realistic.

In the following week, the three teams covered half of the crater, collected hundreds of ice samples, and obtained a lot of first-hand information, but it still took a lot of time to complete the survey task.

According to the plan, the Kongtian-2 will be launched in the next few days, and the dilemma of the base's shortage of manpower will be alleviated to a certain extent, and all the astronauts, including Ye Han, are looking forward to returning to Earth to drag all the reserve astronauts to the moon.

However, just as the launch of Kongtian-2 was about to be launched, a tropical storm swept across the South China Sea, and the launch plan had to be postponed, depending on the weather.

The training base selected the second batch of astronauts, but they could not take off because of bad weather, and after a few days the storm subsided, three of the 12 astronauts actually failed to pass the physical examination, so they could only change the generals and re-select the astronauts, and the Kongtian-2 was finally able to take off.

The arrival of Kongtian-2 on the moon was more than a week later than scheduled!

Instead of being integrated into the temporary base, the second group of astronauts set up a new camp a kilometre away, and found another location to dig a mountain wall.

The two bases were named No. 1 Base and No. 2 Base respectively, and the personnel were also organized into a team and a second team, and they lived not far away, but they did not take the lunar rover, and they were tired and half dead after a trip to the door.

This is not in line with the previous construction plan, but it is the latest arrangement in the northern capital.

Beidu plans to use all the space groups separately, dig caves at different locations on the crater, and after the base is initially completed, all the caves will be dug through and turned into a lunar base with a large internal space.

And each cave has a different arrangement, as for the specific arrangement of no one is clear, everyone just need to dig the stone according to the drawings.

The crater looks thin on the map, but the actual thickness is close to four kilometers, and you can imagine how huge the base will be when it is built.

It must be more difficult to arrange astronauts in this way, but the construction efficiency can be greatly improved. Even if you really have an idea in your heart, you will never put it on your face, even if you pretend, you can pretend to be obligatory.

Group construction is equivalent to the introduction of a competition mechanism, the two groups immediately on the bar, you chase me to step up the construction, at least increase the construction efficiency by one-fifth!

Although there are two more people in the first team, and the construction time is half a month earlier than the second team, it seems to be very unfavorable to the second team, but when the second team is stationed, the first team has already gained a firm foothold, and the support facilities already in the No. 1 base do not need to waste resources to repeat the construction, what needs to be provided by the first team.

For the time being, everything is solved on the ground, and only Base 1 needs to supply enough oxygen.