How long has it been since you've looked up at the stars?

Do you remember the image of a meteor streaked across the sky under a starry night sky?

Human beings have always believed that in the depths of the starry sky, there must be an intelligent race like humans, and rumors about aliens have been circulating for hundreds of years, and there are countless related literary works.

But is it really a good thing that aliens are visiting Earth?

With the restoration of the satellite network, scientists were pleasantly surprised to find that the satellites they launched into Mars' low-Earth orbit were not destroyed, and that they were still doing their job dutifully, and that they had taken a large number of precious photos.

Eight countries on Earth have launched satellites to Mars, among which the two countries of Qianghan and Bodeig have the most satellites and take the most photos.

It was a flying machine, countless times larger than the one developed by Lu Caishi, and it was definitely not the technology of the current earth, even if the six most powerful countries before the Eighth World Alliance invaded World No. 1 could not create this kind of flying machine together.

Because of this behemoth, the newly formed coalition government, which had existed in name only for a short time, once again played its part, and the heads of government met urgently without the participation of the chief designer.

"What do you think?" President Winston from Bodeig asked.

"Intruder." The president of the Snow Bear Country, Medwiki, said very firmly.

The head of state of Qianghan also replied a little conservatively: "It's not certain whether it will invade us or not, but it must be the starry skyke." ”

"It's really a wave of unsettled, and a wave of rises." President Winston said helplessly.

"Where is it now, can you determine where it is?" The president of a certain country asked.

"Scientists have been urgently asked to look for it, but they have not yet been found, and these photos were taken more than three months ago."

"More than three months ago?" One president said with a strange face, "That is, the time when the chief designer had just disappeared." ”

The head of Qianghan suddenly looked unhappy, and said in a deep voice: "What do you want to say?" ”

"Hehe, don't misunderstand Yuan Xiansheng, this may just be a coincidence."

President Winston waved his hand and said: "Even if there is only a 1 in 10,000 chance, we have to guard against it, if the chief designer is really caught by those aliens, we must try to rescue him, he is the hope of our human future." ”

"Well, let's find this craft first."

I didn't know it before, but now that I know that there is an alien spaceship close to the earth, it is still easy to find it under the deliberate search.

Soon scientists found the massive craft in a photograph sent back to the ground by a moon-orbiting satellite.

The moon orbiting satellite is currently in a state of crash, and it has just crashed recently.

Because the Eighth World Alliance destroyed all the satellites around the earth before, plus the loss of power and network, even the loss of one more satellite around the moon does not seem to be a big deal for people on the ground.

However, if you think about it, what caused the moon satellite to crash?

This cannot be the "credit" of the Eighth World Alliance, this pot is too high, and they can't carry it.

The probability of it crashing on its own is extremely low, and even if it breaks, it will become space junk and continue to float in space.

Excluding all impossibilities, then there is only one real possible reason, and it was destroyed by an alien spacecraft.

Then the location of the Star Passengers is self-evident, they have landed on the moon, or they have landed on the moon, and now they have quietly come to the earth.

Governments mobilized and the world was once again on emergency alert.

Fighting aliens, they have no experience, they haven't even seen what aliens look like.

I don't know what strengths the enemy has, I don't know what weaknesses the enemy has, I just know that they have more advanced space technology than Earth.

In the event of a real military conflict, what should they do against these alien invaders?

It was indeed aliens who came, and they didn't have the slightest idea of hiding their whereabouts, and the moon satellite mentioned above did crash because of them, but it was not actively destroyed, but the vehicle hit the satellite when it descended to the moon, and crashed it to the moon, and they didn't pay any attention to all the satellites launched by the earthlings, just like an elephant wouldn't pay attention to the flies that fell on it.

These aliens are also carbon-based life, which is probably the fundamental reason why they were able to discover the Earth.

Different forms of life are difficult to discover each other, because it is difficult for both sides to understand each other's existence, just like the organic and inorganic life forms described in "The Three-Body Problem", even if they meet each other, they do not regard each other as living beings, but in fact the scientific and technological civilization between them is highly developed.

Scientists have long conducted in-depth research on life forms, and the consensus view is that there is not only carbon-based life in the universe, but also sulfur-based life, amino life, boron-based life, silicon-based life, arsenic-based life, etc., but so far, no one has found life other than carbon-based life.

The 19th-century biographer Haldane once proposed that there might be semi-molten silicate life forms deep inside the planet, and he believed that such life forms could use the oxidation of iron to provide energy, but his conjecture has not been confirmed until now.

It can also be reflected from this side that if there is really another new life form that is completely different from the human beings on the earth and invades the earth, the earthlings will probably not find out, and they will most likely not pay attention to the earthlings, and the two sides are very likely to survive in peace for countless years without knowing or even knowing the existence of the other party.

Speaking of this group of extraterrestrial intelligent life, they are taller than humans, generally more than two meters tall, especially tall can reach three meters, even the dwarfs among them will not be less than one meter eight.

Their faces are long, their features and chin are pointed, and their ears are diamond-shaped, but the drooping tips are much longer, hanging like an awl over their shoulders, forming an inverted triangle with their chin.

Their skin is dark and metallic, their bodies are hard as steel, their flesh is strong, their fingers are long and sharp, the backs of their fingers are devoid of nails, but the tips of their entire fingers are keratinized.

They don't even need to wear clothes, because they shed their skin like snakes, but the skin on their bodies does not fall off, but automatically adheres to the surface of their bodies.

Until the age of 16, they will automatically molt once a year, and then they use special techniques to polish the skin so that the layers of leather armor are glued together and not very thick, so that they form a solid armor that encloses all over the body, and there is no weakness on their whole body except for the lower genitals and the head.

Their skin has no sweat glands, so the armor doesn't make them feel uncomfortable, and they don't sweat to sweat, and all the waste in their bodies can only be excreted through the excretory cavities.

They are also humanoids, the overall structure is similar to that of humans, they also stand and walk on two feet, and they are also mammals, but when women nurse babies, they do not breasts on their chests, which is the biggest difference between them and earthlings, they do not have nipples on their chests.

Their tongue in their mouth has a function similar to that of a breast, and can use the glands on the tip of the tongue to secrete the nutrient solution that the baby needs, so their tongue is also very long, up to 20 cm, which can be forked like a snake, and can feed two babies at the same time.

They visited the solar system near the end of the insect plague, and witnessed the destruction of the insect plague on human beings, and also witnessed the process of human beings eliminating the insect plague, but they were somewhat inexplicable, they did not understand how human beings solved it.

They quietly captured a few humans for research, and found that the frequency range of the sounds they could produce was different, and there was very little overlap, which meant that they could not communicate through normal means, and they needed to develop special communication tools.

Their sound frequency range is 5~35 Hz, similar to whales on Earth, the frequency range of human hearing is much wider, but it will still be difficult to hear the voices of these starry passengers.

They also studied the structure of the human body, and this is what surprised them, the human body is not as strong as theirs, but the human body has much more potential to develop than theirs.

This means that in the event of a conflict between the two sides, they may be able to defeat humanity in a very short period of time, but if they cannot eliminate humanity at once, then with the strong development potential of humanity, they will be defeated by humanity sooner or later.

The air on Earth can barely provide them with breathing, but the high levels of nitrogen in the air can take a toll on their bodies, and prolonged exposure to the air can make them dizzy and weak.

Humanity's ability to launch weapons into space was discovered when they first arrived in the solar system, as evidenced by the dense wreckage of satellites in the starry sky.

Human weapons are weak overall, but they have reached a point where they can inflict damage on them.

They didn't think about destroying humanity, but if they could, they wouldn't mind colonizing the globe and turning it into a mine of their own.

However, after a comprehensive assessment of the civilization of the earth, they also have a little wavering about the colony ball, and they may be able to succeed, but they will inevitably pay a great price.

At the same time, the earthlings also possess a super high technology that even they do not have, that is, the ability to open parallel world passages.

Don't look at their flying machines can already fly faster than the speed of light, but if they want to open the parallel world channel, they are far from being able to do it, and the two sides are developing completely different technology trees.

Knowing this information, the Starmen immediately shelved their plans to colonize the Globe and re-established their mission goal of acquiring parallel space teleportation technology.

On the basis of this goal, they will not hesitate to colonize the Sphere if they need it to achieve it, and they will do whatever it takes to destroy the Humanity if it is necessary to destroy it to succeed.

But how do you get this technology?

There are also a lot of differences within them, some people think that more things are better than less things, it is better to trade directly, and the earthlings do not yet have the ability to conflict the solar system, so they can sell the most rudimentary tachymo engine to them and let them exchange it for parallel space technology.

Some people think that it is better to ask for it, they are the strong side, the earth is the weak side, although they do not necessarily have to destroy the human beings on the earth, but they only need a little deterrence, so that the earthlings believe that they have the strength to destroy the earth, and the earthlings will naturally obediently send the technology they need.

Others suggest snatching it directly, since the earth is the weak side, grab it directly, and the earthlings dare to resist, even if they resist, it is a grasshopper shaking the tree, and they can't do it themselves.

There are also peacemakers who come out to mediate, no matter which way is used, contact with the earthlings is unavoidable, it is better to understand the attitude of the earthlings first, maybe things are not as complicated as imagined.