The rise of nanometers

From the time NASA decided to test it out to the launch of the launch vehicle from Space City, Florida, on July 13, 24 days passed unknowingly.

During this period.

Yao Guoxian's team has set up 17 simple strongholds at the border of Yuhai and various important places, and even rested for a week in between.

At this time, they were building the 18th simple stronghold in the Imbrium area in the Mare of the Moon plain near Aristarchus Crater.

There are also three space capsules and one stronghold.

This kind of wealthy behavior makes the Xizhou Space Agency and NASA, which are powerless at this time, feel envious and jealous.

After all, NASA took eight months to build the Outpost 2 base with only 15 space capsules in total.

As for the Xizhou Space Agency, it is even more shabby. The Alpine base currently only has three space capsules and no astronauts are stationed there.

As for the Federation, in just over a month, hundreds of space capsules were deployed on the front of the moon, forming 34 simple strongholds.

In addition, Mendeleev City on the far side of the moon is also undergoing rapid expansion. This speed of expansion really makes it difficult for opponents to sleep and eat.

More than twenty days have passed, and the Yuhai is shrouded in darkness.

Occasionally, lunar dust caused by static electricity will show obvious traces under the illumination of the spacecraft's searchlight.

Li Zhen moved out a piece of space capsule shell from the cargo hold of the spacecraft. At this moment, an alarm sounded in the communication system.

[Please note that according to the detection and analysis of the Lunar Weather and Astronomy Bureau, a local meteor shower will occur in two hours. The area where this meteor shower may fall is roughly between the southern part of the Sea of ​​Clouds and the northern part of the Oceanus Procellarum. Please operate in this area. The astronauts entered the bunker in time...]

[Repeat...]

Li Zhen was startled, and Yao Guoxian, who was not far away, immediately reacted: "Dabin, Ah Zhen, return to the spacecraft immediately."

"receive."

"almost there."

Li Zhen, Wang Dabin, and Yao Guoxian threw the uninstalled parts outside and then quickly entered the spacecraft.

Although they don't think that being hit by a meteorite will happen to them, astronauts have special work codes and regulations.

For example, if you encounter a solar storm with an intensity exceeding level 9, no matter where the moon is, as long as it is in an open-air environment, you must find a bunker as soon as possible.

It is basically impossible for them to commit suicide tricks like those in movies. This is the professional quality of a professional astronaut. If they cannot do this, the space agency probably will not allow them to become astronauts.

After entering the spacecraft, Yao Guoxian immediately opened the spacecraft's computer system and found the specific data on the incoming meteor shower.

Generally speaking, the probability of being hit by an asteroid is lower on the front side of the moon than on the back side. In addition, the probability of large asteroids appearing is also relatively small.

Asteroids that require early warning from the Lunar Weather and Astronomy Bureau are usually meteorites with a diameter of more than 0.2 meters, or cluster-type meteorite showers.

Obviously, the meteor shower that struck two hours later was a cluster-type meteor shower.

According to detailed monitoring data, the number of meteorites in this shower is very large, including 382 meteorites with a diameter of more than 2 centimeters.

There are also 16 meteorites with a diameter of more than 0.5 meters.

The reason why cluster-type meteorite showers occur is usually because two relatively large meteorites collide with each other in orbit.

The cause of the meteorite rain in front of me was that two relatively large meteorites collided with each other and then broke into hundreds of pieces.

If a meteorite shower of this diameter appears on the Blue Star side, it will probably become a real meteor shower and will not pose any serious threat to the surface of the earth.

However, the target of this meteorite rain is the moon, which has no atmosphere. The mass of the meteorites will not be consumed by the atmosphere due to friction and heat.

Even though the Federation's material technology is relatively powerful, exoskeleton-armored space suits are not omnipotent. There are limits to materials.

Meteorites with a diameter of more than 0.2 meters, especially iron-nickel meteorites, can severely damage the protective layer of exoskeleton armor if they move fast enough.

Yao Guo first looked at the monitoring data and found that the flying speed of this meteor shower was enough to threaten the exoskeleton armor.

But the outer shell of the spacecraft can resist or buffer part of the kinetic energy. Now staying inside the spacecraft is the safest solution.

It happened that everyone also took the opportunity to take a rest.

Of course, even when they were resting inside the spacecraft, they did not take off their exoskeleton armor. After all, meteorites with a diameter of more than 0.5 meters could potentially break through the outer shell of the spacecraft.

Although the probability of a meteorite hitting an astronaut again after hitting the spacecraft is very small, the possibility is almost zero.

But many times, things like probability are unreliable. Once a person is unlucky, anything can happen.

Two hours flew by.

At this time, more than 300 meteorites were hitting the lunar surface in the southern part of Mare Imbrium, the northern part of Oceanus Procellarum, and the Copernicus Crater.

In the sub-vacuum near-Earth region of the moon, there was no roar of meteorite impact, only a few flashes of light.

However, in various bases and simple strongholds on the moon, the special lunar area equipped with Shunfeng ear monitors has accurately locked the location of each meteorite falling.

One of the meteorites with a diameter of 0.31 meters hit the southwest of where Yao Guoxian's team was located, less than 11 kilometers away.

That kind of obvious impact and the shock wave it produced, even Yao Guoxian and others felt the obvious vibration.

Eight minutes later, as the last meteorite fell, the meteorite rain passed without any danger.

Suddenly, a latest message popped up on the spacecraft's communication system:

[Instruct Yao Guoxian's team to send personnel to the nearest impact location of the KG225.0083 meteorite to recover the debris of the meteorite. ]

[receive. ]

Yao Guoxiang turned his head and said, "Azhen, please take a walk."

"no problem."

Li Zhen nodded, and then drove a light electric vehicle to the southwest, 11.23 kilometers away, preparing to recover the remains of the meteorite.

Although there are many ancient meteorite impact craters (craters) on the moon, such freshly baked craters and meteorite debris still have some scientific research value.

the other side.

Outpost 2 base.

Phillips was digging in the sand when he suddenly saw a glimmer of light flashing through the air in the north, followed by a slight vibration.

He hurriedly opened the communication system: "David, did something fall to the north just now?"

After a while, David in the base finally learned through satellite detection data and the seismic detector installed at the base that a relatively large meteorite fell on the moon about 37 kilometers north of their base a few minutes ago. In the sea plain.

David picked up the communicator: "It's okay, it was a meteorite that fell to the north."

"I see."

But more than twenty minutes later, Houston Space City also learned the news, and issued a new order to Sentinel 2.

Balu, who had just returned from picking up trash at Outpost 1 Base, was sent out as soon as he came back.

NASA ordered them to collect data about the meteorite and the crater. Balu could only drive an electric car and cautiously headed north.

Since it was a moonlit night at this time, the surface of the Procellarum was basically invisible.

Coupled with the unfamiliar new route, Balu naturally would not take it lightly and slowly walked towards the crater.

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