June 10th.

At this time, the Dongfanghong base expanded again, and the Xuanwu-class spacecraft had already transported all the materials carried by the Zhangzhou to the Dongfanghong base.

The Dongfanghong base, which has abundant materials, will finally complete the first floor of the main building, surrounding the 19 standard cabins that are combined together, like a silver-white beehive.

In addition, Chang An and others have built a water resource refining plant (three standard cabins), which is in the planned third angle area.

Zhu Gang collected 10 tons of ice from a water-rich soil layer, and the electric tracked truck dragged a sealed body with 10 tons of ice and soil.

In fact, there is not only water in these ices, but also some dry ice (carbon dioxide), which is already a number of other minerals that can be used.

But now they can only extract water, and the rest of the material can only be stored temporarily.

"Team Chang, the ice and soil have been transported." Zhu Gang shouted to Chang An through the walkie-talkie.

"Roger, the refining equipment is ready, you drag some ice over here, let's try the equipment." Chang An hurriedly replied.

Zhu Gang opened the body, and inside were storage boxes, each of which was made of fiberglass composite graphene material, with a standard storage capacity of one cubic meter.

The density of these ice is between 2.4~2.5 tons per cubic meter, which means that a standard storage box contains 2.4~2.5 tons of ice, but the gravitational pull of the moon is only about one-sixth of that of the blue star, so the weight of a box is about 0.5 tons.

Although it was a 0.5-ton box, this was not something that Zhu Gang could carry, and he drove an electric forklift from the tool compartment of the main base to move one of the boxes down.

Forking the box into one of the cabins, Chang An was also inside, he pointed to a reactor that had been opened and said, "Gangzi, pour ice and soil into the reactor." ”

"No problem." Zhu Gang hurriedly operated the forklift to close the box to the entrance of the reactor, and then he got out of the car and opened one side of the box, and shoveled the ice and soil inside into the reactor with a shovel.

As soon as he shoveled down, the ice was very sticky, and it took him more than ten minutes to shovel all the ice and soil in the box into the reactor.

"Team Chang, I loaded a cube of ice and soil into it."

"Okay." Chang An pressed the reactor off switch, the reactor slowly closed, and then he started the heating function, for ice soil, there is no need for a complex extraction process, only heating can be used to initially separate the water.

Soon the temperature in the reactor rose rapidly, and the ice and dry ice in the ice began to change, most of the ice became liquid water, a small part became water vapor, and the dry ice was directly sublimated into carbon dioxide gas.

The liquid and gas are quickly pumped into a filtration and separation pipeline, and the water is quickly separated. After the water has been separated, the carbon dioxide and other substances are pumped into another storage tank for storage.

[The reaction has ended, and 457 kg of purified water has been obtained...... ］

"It was successful, and the water problem at our base was temporarily solved." Chang An said excitedly.

"However, this water refining plant is not yet very complete, and this feeding system has to be sent by Blue Star, as well as transport trucks, mining robots and other ......."

Suddenly, there was a slight tremor on the ground.

"It's a moonquake." Zhu Gang opened the holographic bracelet to call up the earthquake detection system of Dongfanghong Base, and after he looked at the data: "The shock center is located in the southwest of the storm ocean, and the magnitude is 2.4. ”

"These moonquakes are a bit frequent, and we have to pay attention to them." Chang An said with some concern.

"Rest assured, earthquakes on the moon are relatively small, but sometimes they last longer." Zhu Gang didn't worry too much.

Like this time, there was a 2.4 magnitude moon earthquake, which is already a relatively large earthquake, and the moon earthquake is generally below 2 magnitude, and at least thousands of times occur every year.

However, due to the lack of water and other liquid materials in the lunar formation, the energy exhaustion of moonquakes is very slow, which is characterized by small magnitude, long duration, and large impact.

Unless it is a huge asteroid impact, it is possible to cause a large-energy moonquake, and the usual moonquakes are below magnitude 2.

This time, the moonquake lasted for about 3 minutes, but the moonquake of this level did not have much impact on the Dongfanghong base.

"Quansheng, is the base damaged?" Chang An asked Song Quansheng in the general control cabin.

"It is reported that the various systems are functioning normally and have not been affected."

"Okay."

Chang An, who was relieved, hurriedly worked with Zhu Gang to refine the remaining three boxes of ice soil, and obtained a total of 1,854 kilograms of pure water.

Coupled with the 3.2 tons of water stored in their base itself, this water is enough for the four of them to use for a while, and there is a water recycling system in the base, which can recycle about 96% of the water.

However, if you want to extract fresh water on a large scale, it is obviously not ideal on the moon, even if there is abundant solid water near the south pole of the moon, it is still not an ideal water source for large-scale mining.

The idea of the Space Development Commission is to use the asteroids with abundant water resources from the near-Earth asteroids as water mining sites, and the water resources of the moon as self-supply from local bases.

The four of Chang'an were busy with the affairs of the Dongfanghong base.

On the other side, the Zhangzhou was already moored in the berthing area of the Xinba Zhong space station at this time.

A Xuanwu-class spaceship, which was specially responsible for transporting supplies to the Blue Star ground, was quickly transporting storage boxes to the cabin of its own spaceship.

The driver rummaged through the freight list, this time to the ground to transport supplies, this is their fifth return mission, the goods transported to the main goods from the Iron Star No. 1 planet 20 tons of platinum, 20 tons of gold, 11 tons of high-purity tungsten.

Then there are some samples and souvenirs.

At 11:21 a.m. on June 10, the Xuanwu-class spacecraft returned with a full load and quickly headed for the spaceport in Bazhong City.

Although the gold and platinum did not enter the market, the news that the Space Development Committee had obtained a large amount of gold and platinum in outer space has long since spread far and wide.

In the past two months, the precious metals market has suffered a catastrophe, and the price of gold has plummeted from 314 Chinese dollars 1 gram in April to 126 Chinese yuan 1 gram now, which is obviously unimaginable.

The prices of platinum and silver also fell by about 87% and 41% respectively.

Anyway, the international investment in precious metals is a river of blood, and the central banks of various countries are the real ones who want to cry without tears.

However, precious metals do not maintain their value, and the impact on the Dongtang and Galaxy consortiums is not great, and the Dongtang Central Bank and Mars Bank have joined forces to repurchase many precious metals in their own systems.

If the Central Bank of Dongtang is still somewhat concerned about face, the Bank of Mars is much simpler and rude, directly announcing the abolition of the currencies of member countries such as the South Korean won, the Japanese yen, and the Australian dollar, and directly adopting the Mars coin as a unified currency.

This time the monetary unification plan directly made the previously looming Galaxy Consortium territory appear directly in front of the countries of the world.

The Dongtang Central Bank has also successfully incorporated their economy into the economic system of the Dongtang Dynasty by holding the Mobei Central Bank, the Myanmar National Bank, the Laoguo Central Bank, and the Jianpuzhai National Bank.

And Huayuan and Mars coin guarantee each other's currency value, which is equivalent to the same monetary system, and the power of Huayuan has begun to suppress the oil knife.