June 4th.

It has been 3 days since the moon landing.

During this period, another Qinglong-class spacecraft on the lunar space station underwent a change of guard with the Qinglong-class spacecraft at Dongfanghong Base.

On duty at the Dongfanghong base are still Chang An, Zhu Gang, Song Quansheng, and Fang Haibo.

At this time, the Dongfanghong base has begun to take shape, with four standard cabins (140 cubic meters), and Chang An and others have leveled the ground of about 5,000 square meters as a temporary landing site for the spacecraft.

As for how to level these grounds, Dongfanghong Base uses an atomic shredder, which uses an atomic shredder to directly ionize ground particles, and then let these plasmas naturally cool and solidify, which will become a glass state ground.

The Atom Crusher can be called a glass-burning artifact, although it is a small amount compared to the glass-burning of mushroom eggs, but this thing is not only fast and controllable, but also has no nuclear radiation pollution.

These 30-centimeter-thick lava layers give Dongfanghong Base a temporary landing site, and as for the runway and the like, there is no need at all.

The gravitational pull of the moon is only about one-sixth of that of the blue star, plus there is no dense atmosphere, the distance of flying with 35 kg of fuel on the blue star can only be reached by using 1 kg of fuel on the moon, that is to say, propelling the same heavy spacecraft, the fuel consumed on the moon only needs about 1/35 of the blue star.

In this case, a direct launch site is enough, and the runway for running is dispensable, not to mention that the Qinglong-class or Xuanwu-class are not space shuttles, and it is useless to have a runway.

"Standing team, when will our nuclear power plant come?" Fang Haibo put down the combined tracked vehicle on the side and asked.

Chang An looked at the holographic file: "Come over on June 6 the day after tomorrow, and a Union-class spacecraft will come over." ”

The United class is the same spaceship as the new Chang'e-1 and Conqueror-1, and the spaceship is combined in a 9+1 way, 9 is 9 standard cabins (140 cubic meters of hexagonal cylinder), and 1 is 1 Xuanwu-class or Qinglong-class, which are combined to form a Union-class spaceship.

The Union-class spacecraft has a length of 30 meters, a middle width of 12 meters, a total volume of 1,540 cubic meters, a dry weight of 195 tons, and can carry 355 tons of supplies (if the head module is the Qinglong class, it will carry 20 astronauts and a payload of 315 tons).

It has one main engine, six auxiliary engines, and a fusion battery (314 million kWh of electricity per year).

"That's good, otherwise the lack of power at the base will allow us to carry out more operations." Fang Haibo started the crawler truck, and the crawler started smoothly.

Zhu Gang walked over, and he found that Fang Haibo had already repaired the tracked vehicle.

"What the hell is broken?" Zhu Gang patted the steering wheel of the tracked car and asked.

Fang Haibo replied while recording some data and situations: "A gear was stuck by a stone, it may be that the gravitational force of the moon is too small, and the tracked vehicle is driving just now, raising a large number of moon dust and moon rocks, these things are easy to invade the inside of the instrument, it seems that the blue star should be strengthened to seal and prevent dust." ”

"I see." Zhu Gang suddenly realized.

"Gangzi, don't drive too far, otherwise it will be troublesome if it breaks." Fang Haibo said.

"Hai Bo is right, just now, don't drive too far, we have time, don't worry about this time and a half." Chang An also persuaded him.

"Alright! I'll just collect samples nearby. Zhu Gang also knew the priority, and after saying hello to the two, he drove the tracked car to the south.

The tracked car crushed out ruts in this virgin part of the moon, and Zhu Gang drove the tracked car about 3 kilometers away from the Dongfanghong base before he began to slow down.

From time to time, he operates mineral detection instruments to perform rough inspections in all directions.

Suddenly, some information pops up from the detection instrument [Azimuth 14.733/167.423, anomalous magnetic field detected].

He quickly looked at the direction, then activated the lunar navigation system, and drove the tracked vehicle towards the anomalous area.

"Is this the area?" Looking at the surface similar to the rest of the moon, Zhu Gang activated the detection instrument again, and sure enough, it was here.

He hurriedly got out of the tracked truck, took a box and a small shovel, dug up some surface soil, and then loaded it into a small numbered box.

[ID: 000579, 2020.6.4, Directions...... He entered the details into the holographic bracelet so that he could refer to it at that time.

Immediately afterwards, Zhu Gang took out a special laser drilling equipment and began to drill the underground situation.

He has been repeating this work for the past few days, and the number 000579 means that he has collected 579 samples.

Through the rough detection equipment in the Dongfanghong base, only the radius of the base is about 10 kilometers, and a rare earth-rich ore (reserves of about 130~1.9 million tons) has been discovered, and the sand on the surface of the moon also contains a large amount of iron oxide, titanium minerals, bauxite, in addition to helium 3, uranium content is also a lot.

The specific details will need to be fully examined by the Mineral Research Institute of Blue Star, but there is no doubt about the abundance of minerals on the Moon.

In addition, in some samples taken underground, the presence of solid water was indeed found, which somewhat resembled the presence of permafrost.

Zhu Gang: They tested 17 samples with water content, and the water content was about 17%~23%, with an average of about 19.4%.

……

On June 6, at around 14:33 p.m. Peking time, a Union-class spacecraft slowly approached the lunar space station, and then docked with the lunar space station.

This time, the joint-class "Zhangzhou" was loaded with 355 tons of supplies to resupply the lunar space station and the Dongfanghong base.

The head compartment of the Zhangzhou, that is, a Xuanwu-class, quickly broke away from the Zhangzhou and headed for the Dongfanghong base near the south pole of the moon, this time carrying a large amount of materials urgently needed by the Dongfanghong base.

"Team Chang, a Xuanwu-class transport ship will come over in ten minutes." Song Quansheng reported.

"You give them directions to where we are." Chang An commanded through the intercom system.

"Roger."

Ten minutes later, a dark blue painted spaceship landed on the landing site on the north side of the Dongfanghong base, it was the Xuanwu-class spaceship that transported supplies, and not far from it was a Qinglong-class spaceship parked.

Except for Zhu Gang, who went to collect samples, the other three people hurriedly unloaded the 60 tons of cargo on the Xuanwu-class spacecraft.

A large condensed matter shield generator, a nuclear fusion battery (with an annual power generation capacity of 3.14 million kilowatt hours), a standard cabin, a large number of equipment and a batch of living supplies.

"Great, with the condensed matter shield and the fusion battery, we don't have to worry about being hit by a meteorite." Fang Haibo hurriedly pushed the fusion battery towards a cabin.

These days they have been worried and afraid, the moon, as a natural satellite of the blue star, has always been under the threat of meteorite impacts, just look at those dense craters to know the horror.

The Dongfanghong base is better on the front side of the moon, if it is on the far side of the moon, the crater there is dense.

With the condensed matter shield and the nuclear fusion battery, they can make the Dongfanghong base impregnable, unless it encounters an asteroid impact with a diameter of more than 100 meters, otherwise the Dongfanghong base will not be mortally threatened.

And asteroids with a diameter of more than 100 meters cannot get close to the blue star and the moon unless the space development committee's asteroid monitoring system is broken.