Minsk didn't know much about gravitational waves, but he had a keen political sense, and he knew that if he could get the technology of a mysterious civilization, he would have a heavyweight chip in his hands, and all opponents would be vulnerable in front of him.

Human beings now have planetary transformation technology, there are now more than 120 large cities on the moon, of which several of the relatively high development have carried out habitability transformation experiments, survival on alien planets is no longer an unattainable dream, for the current human beings to immigrate to alien planets The biggest obstacle is only two points.

One is distance, and the other is energy.

Any galaxy that reaches far away is a big problem, and now the closest galaxy to the Earth is also four light-years away, and it is impossible for the nuclear fusion engine used by human beings to run so far, and the new concept engine has not broken through for a long time, and the warp speed drive card has been in the initial experimental stage for almost twenty years, and now human beings do not have any effective means to leave the solar system, and this mysterious cube, which can accelerate the earth to the third cosmic speed in a short period of time, proves that they have a powerful driving engine technology, although they do not know the principle, But at least it is much more technologically advanced than the current stage of human beings, and it is not a generational gap. This kind of technology is a key to ascension for humans, and getting it is equivalent to the ancient apes getting the black **, the medieval knights took the stealth warplane, and the humans will instantly cross several technological ladders and directly enter the era of interstellar travel.

Energy is the same thing, the mysterious cube has the power to propel the entire earth, then there must be enough energy, Qin Yi measured its volume, and calculated that the size of the mysterious cube is about one-fifth of a moon, if it is nuclear fusion technology, even if it burns itself all out, it is not enough to push the earth to do long-distance travel, then it must have more advanced energy technology, Minsk's first thought is antimatter, which makes him very excited, this technology was proposed at the beginning of the last century, But so far there has been no progress.

Antimatter of the same mass can explode hundreds of times more powerful than fusion fuel, and not just for energy technology......

Historically, energy has always been linked to another thing, that is, weapons, after human beings discovered the use of fire, fire has become the most powerful weapon of human beings, oil was the secret weapon of Byzantium in the Middle Ages, the famous Greek fire, electromagnetic weapons were born after the invention of electricity, after the discovery of the powerful energy of nuclear energy, compared with nuclear power plants, human beings created nuclear weapons earlier.

Antimatter weapons are even more terrifying, and the mass the size of an apple is enough to destroy a country, and Minsk is naturally very excited, and the easiest way to maintain a high degree of centralized power is to master the weapons that make people smell so bad.

Of course, these are just fantasies, just as Minsk and Qin Yi are eager to try to plot alien technology, Mark and they are still struggling with how to save the earth, and Mark fell into despair and frustration after Sun Tan explained his conclusions.

He was willing to believe this result no matter what, the family he thought about day and night was still at home, all the good memories he had since he was a child happened on the earth, this great change came too quickly, Mark was one of the first people to witness the appearance of the white square, it has only been two days now, but he is already about to lose everything, if there is no home, is there any point in living? Having to do repetitive labor on the moon until he died, the sea change will make the situation on the moon more tense, and there will be fewer opportunities for people like him to seize it, and Mark feels that his future is dark.

No matter how hard and tired he was before, as long as he thought about being able to return home, he could grit his teeth and resist, once the lunar rover he was driving was penetrated by a miniature meteorite, and a large hole was opened in the front of the lunar rover, and the fragmented meteorite fragments pierced Mark's shoulder, the earth's atmosphere can block most meteorites, but on the moon without an atmosphere, such small stones the size of mung beans often appear, they are invisible and deadly ghosts, which will pierce you like bullets at every turn, and there are barriers against miniature meteorites in the city, but when working outdoors, you can only consider yourself unlucky. Mark was isolated at the time, the communicator was destroyed, so he had to use the medical kit in the lunar rover to deal with it simply, and then cowered in the car waiting for rescue, Mark waited for more than 30 hours before being discovered, and when he was frozen and almost lost his will, he would think about his family, if he died, how sad they would be...... With this will, he managed to survive until the rescue arrived.

However, now that the earth has suffered a catastrophe, and his family's life and death are now uncertain, how can Mark be willing to live in secret.

"Have you calmed down?" Sun Tan poured him a hot drink, the moon's unique imitation hot cocoa has a plastic smell, but it is better than nothing, Mark did not drink it after taking it, just looked at the drifting white smoke and thought a lot.

"I'm sorry...... I'm so excited, do you still hurt? Mark realized that he was too bad at venting his emotions with his friends, and he just told himself the truth and did nothing wrong.

"It's okay, just your little pink fist can't hurt me." Sun Tan said with a grin.

"What do we do next? What else can we do? Mark asked Sun Tan for help with a desperate face: "It's good for you to lie to me, at least let me have a direction, don't tell me that I can only wait next." ”

"It's not that we can't do anything, at least we're ahead of everyone, I don't know if the researcher's people can successfully decipher it in the end, but this long-wave band is currently only under my control, and then we can infer a situation based on the existing information." Sun Tan suggested: "There must be incomprehensible barriers between civilizations, but there are always similarities, such as civilization always takes survival as the first element, and the development of civilization always brings about a reduction in entropy."

"I don't understand what you're saying, can you put it simply."

"In short, we know that we are invincible, we don't know anything about that mysterious civilization now, we might as well try to describe what they look like, just like the police do a mental sketch, maybe we can find some clues." Sun Tandao.

"Aliens...... The only thing I have of aliens is the big-headed dolls in old movies. ”

"First, speculate from what we know." Sun Tan raised a finger and said, "Why do they send a series of signals, have you ever thought about it?" If it is a civilization that has never seen other extraterrestrial civilizations, they will definitely come up with a theory similar to the Fermi paradox, believing that life is rare and that there may not be an advanced civilization in the universe. But now they are testing with signals, which proves that they may have encountered advanced civilizations, and they have been attacked by the other side for hijacking the planet. ”