The moon base I built was exposed

Chapter 22 The Coming Alien Fleet

deep space.

More than a hundred spaceships passed by slowly.

One of the spaceships is [-] meters long, and several humanoid creatures are communicating in the control room.

"Two wormholes were discovered, one leading to the NB-1250 star system and the other leading to the FC-8815 star system, which one should we go to?!"

"What is the status of the planets in the two star systems?"

"According to gravitational wave calculations, there should be eight planets in the NB-1250 star system..."

"The FC-8815 star system has only seven planets..."

"Then go to NB-1250!"

"I hope to meet other civilizations and destroy one more, so we can return to our home planet..."

"What mother star, there is no mother star!"

"It's all the same!"

……

Lunar base vehicle control room.

This is a field that other than Zhao Yu, even artificial intelligence cannot enter.

【Base: Level 1】

【Experience: 50404/100000】

[Technology points: 223 points. (Increase 1 point every hour.)]

"223 points, I wonder if we can come up with a detection device..."

The purpose of Zhao Yu's coming here is to suddenly feel that he is too passive, without any space detection equipment, as if he is blind.

Before, he didn't dare to build it for fear of being discovered by aliens, but now, knowing that he is on the moon, he is not afraid anymore.

After all, the next door is the earth, and if he knows everything, even if he is exposed, the other party can't do anything to him.

The only thing to worry about is whether the alien fleet will be sent by the earth after more than two months.

After clicking on the base car, Zhao Yu thought for a while, and entered the word "detection" in the search bar.

"Radioactive Decay Calculator: It can use the half-life to measure the position and age of celestial bodies...Required technology points: 10"

"Ground-based telescope: Observing the universe and astronomy through a lens...Required technology points: 15"

"Orbital Telescope: Place a telescope in the space orbit of the planet, which can observe more realistic scenes without being affected by the planet's atmosphere...Required technology points: 20"

"Electromagnetic radiation receiver: can receive electromagnetic radiation in the universe, observe the universe...required technology points: 25"

"Artificial satellite: Use a spaceship or rocket to send it into the orbit of the planet, and use a high-power lens to observe the interior of the planet... Required technology points: 30"

"It's all conventional technology..."

Zhao Yu scratched his head. He set the system in ascending price order, and each search automatically starts from the cheapest technology.

He scrolled down the list, and the detection methods he saw were basically related to the telescope. He kept scrolling all the way to the bottom, and finally found a seemingly powerful thing.

"Gravity Lens: Everything has gravity, you can detect everything through gravitational waves...Required technology points: 500"

"It's a bit expensive!!"

Zhao Yu scratched his head, "Are there only these detection methods?!"

After looking around the detectors, most of them are telescopes, and a small part are various signal receivers such as X-rays, optics, infrared rays, gamma rays, etc.

"It seems that in the field of detection, this gravitational lens is the upper limit of a level 1 base..."

Zhao Yu is only a level 1 base now, and the technological products that can be built have upper limits.

This is the case where he has reached the full level of the seven basic sciences, otherwise it is estimated that the gravitational lens will not appear on the list.

In his own understanding, the base vehicles obtained by Zhao Yu are simply divided into two categories, technology and construction.

There are only seven science and technology categories, namely: Mathematics, Logic, Astronomy, Planetology, Physics, Chemistry and Life Sciences.

The upper limit is the level of the base car, just like it is only a level 1 base car now, and the seven technologies can only be upgraded to a maximum of 1.99.

But even so, the seven technologies cost Zhao Yu nearly 0.01 technology points, an average of 10 technology points per [-] increase.

Under the category of science and technology, Zhao Yu divided sub-categories into scientific research, which mainly focuses on turning theories into practical applications. Applied mathematics, applied physics, and finally Zhao Yu’s usual military robot modules, AI training, etc.

The second category is construction.

All facilities, whether in life or military, can be mass-produced.

Except for the first construction, which requires technology points, subsequent constructions only need corresponding raw materials.

Just like Xiaotian, there are thousands of Xiaotians in the entire lunar base, except for the first one that uses technology points, the rest can be manufactured as long as there are relevant materials.

In the past few years at the moon base, Zhao Yu has built many facilities, among which the military ones are the easiest to mass-produce, and most of them only need steel or a small amount of rare earth metals.

"The gravitational lens is a bit expensive. It seems that in the early stage, we can only use cheap things to make the transition..."

Zhao Yu pulled the list to the front and decided to use these ordinary things, but even ordinary things would not be so ordinary in his hands.

He circled all the names of the first ten detection equipment, and then entered another word: "Camouflage."

In the next second, the names of the ten detection devices changed.

"Orbital telescope (can camouflage meteorite type)..."

"Sputnik (can be disguised as a meteorite)..."

Looking at the price again, there is almost no difference from before, only a few have slightly increased in price.

"Okay, this is much better!"

In the field of camouflage, his technology has also reached the upper limit level of 1.99, which can just be integrated with these conventional technologies.

Zhao Yu now only has more than 200 technology points, and the price of ten detection equipment is a bit too high.

"Man-made satellites and orbiting telescopes must be available. They can detect the earth. Choose from other types..."

Thinking of this, he couldn't help looking at the three options in the title system.

"Once you get the title, you will have the opportunity to get additional technology points..."

"What to choose?!"

He is very conflicted now and tends to choose three, but in these five years of lonely life, he feels that even if there is no earth, he can do it alone.

As for the second option, it is directly ruled out, and he is insulated from the Holy Mother.

"One and three, think about it again..."

It was still difficult for Zhao Yu to make a decision for a while. At the moment, in addition to the detector, he clicked on the spaceship and the like.

Except for the basic rocket systems capable of launching nuclear bombs and sending star destroyers into space, he did not build extra spaceships.

The reason is still the same, I didn't know the surrounding environment back then, I didn't dare to mess around, I was afraid of being exposed.

"Searching for spaceships..."

The list of spaceships is much richer. In addition to the cheaper types of spaceships similar to the earth's technology, there are also various types of spaceships that have appeared in science fiction movies.

"Saucer-shaped spaceship: control magnetic flight, the maximum speed is Mach 100...required technology points: 400"

"U-shaped nuclear-powered spaceship: It can activate the self-destruct program under extreme conditions, and the self-destruct power is amazing...Required technology points: 450"

"Nuclear-powered, magnetic-powered dual-core spaceship: When the magnetic field is shielded, nuclear energy can be used as a backup...Required technology points: 500"

The three spaceships at the end of the list look very good, Zhao Yu nodded, "The cheapest disc-shaped spaceship can save enough technology points in 20 days..."

After thinking about it, he circled the three spaceships and added other elemental words.

"Star Destroyer Cannon", "Plasma Cannon", "Laser Cannon"

brush!
The list was refreshed, which made Zhao Yu heave a sigh of relief, which means that these elemental words can be combined with spaceships to produce combat spaceships.

"The only thing missing now is technology..."

(End of this chapter)