Looking at the flashing red dots on the wall, everyone hoped that it was a message from the end of the sky, but Lin Shanshan opened it and saw that what she received this time was a set of garbled characters.

"It's another garbled code that can't be deciphered. Lin Shanshan said.

"How much information can be read from this password?" Professor Shen Wei still attaches great importance to this.

"Think about it. Lin Shanshan stared at this code, thought for a while, and said to the professor, "Professor, I really can't crack it, I can only say that this is a collision, or a wave after the explosion, the strength is not very large, the direction is in the east, the distance can't be calculated, but it must be outside Proxima Centauri." ”

"It's nice to have so much information. ”

"But it's not that simple, there must be a lot of information in it, and I can't decipher it at my current level. Lin Shanshan said.

"It's okay, leave it there for now, it will be broken one day. ”

Professor Shen Wei's "It will be broken one day in the future" is not an empty word, nor a casual word of encouragement, but a very rigorous sentence, for example, a space code 300 years ago was broken by Lin Shanshan.

When Lin Shanshan was in college, her main direction was to decipher the space code, and she could break the general code after reading it a few times. In the archives of the School of Astronomy, she flipped through a lot of undeciphered space information, flipped through it, and became interested in several strange codes, which were received 300 years ago, from the same target, and received 6 in almost half a year, and never appeared again. At a cursory glance, although these 6 passwords come from the same direction, they are unrelated, and each line and each point has no analogy, and they are all random garbled characters. She looked through the precious information left behind by previous attempts to crack the code, trying to find something enlightening from it. I don't want to watch it, I can't stop after watching it, my interest is unprecedentedly high, and I followed the ideas of my predecessors for 3 months, but in the end I still walked back to the original path. She didn't understand, why the predecessors were so interested in these 6 ciphers, and put them down when other information couldn't be broken, these 6 ciphers have been tried to decipher for 300 years, why did Lin Shanshan herself try to decipher these 6 ciphers after seeing them? What is the charm of these ciphers? Why can it attract so many people to decipher, including herself, who want to decipher it at first sight? Why do these ciphers only appear 6 times and then disappear, and there has been no repetition of information from that direction in 300 years? Lin Shanshan thought hard about finding out the internal connection between the 6 passwords, but she couldn't find them anyway. She had no choice but to give up the study of these six ciphers and donate the materials she had calculated to the archives for future generations to refer to.

One night, Lin Shanshan was walking on campus, suddenly heard the sound of collision in the air, looked up, only to see two flying cars collide in the air, personnel and damaged vehicles fell to the playground, she hurried over and helped up an old man who fell to the ground. None of the personnel on either side were injured, they all felt inexplicable, it stands to reason that they drove their own way, they were all driving in their respective lanes, and there were intelligent avoidance devices, and the flying car could not touch each other in any case when it was autonomous, and the crash accident had not happened for at least 500 years, what the hell. The vehicle was scrapped, but fortunately, the landing shock equipment performed well and the personnel were not injured.

"Classmate, is there any magnetic field interference in your school that makes the smart device malfunction when the vehicle flies to this airspace? The old man joked.

"I haven't heard of it, I don't think so, there has never been a collision when a car has passed overhead before. ”

"Maybe the magnetic field changed when we just passed overhead, and the intelligence of the flying car didn't know the way, so there was a collision. ”

"It can't be such a coincidence, can it?"

"There's no other way to explain it, it's just to blame, haha. The old man said, "Fortunately, there is no need to be held responsible, and there is no need to compensate, if you touch it, you will touch it, and the magnetic field is not a joke." ”

"We are an astronomy academy, specializing in the study of heavenly things, and we can't control the earthly things, and we don't specifically get things with magnetic fields. Lin Shanshan also said with a smile, "This time the collision was not light, and the vehicle was really scrapped." If such a big accident had happened a thousand years ago, it would definitely have been a car crash and a death to people. ”

"This student knows astronomy and geography, and he also knows the things of the world a thousand years ago, which is not simple. The old man said humorously.

A companion on the side is calling for help.

"It's all in the books. Lin Shanshan didn't have anything to do anyway, since they were waiting for rescue on campus, they would talk to them, "A thousand years ago, there were many roads on the earth, and people basically relied on the road to travel, and later invented the flying car, which slowly replaced the car and train on the road." In the beginning, flying cars were fueled by gasoline and made of steel, which was very bulky and slow. Due to the beginning of use, the accident rate is very high, and collisions often occur, and in the event of an accident, not only all the people in the car will die, but also the people on the ground will not be spared, and it will be very dangerous if it is smashed. Later, people continued to sum up experience, slowly improved, and became more and more advanced. After the human catastrophe 900 years ago, it was a turning point, the hegemonic power disappeared, and the people of the whole earth were stable, no longer worried about war, and devoted themselves to development. At the same time, due to the disaster, the population of human beings has been greatly reduced, and there is no need for roads and railways on the ground, and flying cars have completely replaced transportation, and flying cars are getting better and better, and today, there are almost no accidents, and even if they do, dead people will not happen. ”

"You little girl is not very old, but she knows a lot of things. The old man sincerely admired Lin Shanshan.

"I studied astronomy and sociology, so I know a little bit about the past. Lin Shanshan said with a smile.

"Are you studying astronomy, do you know Professor Shen Wei?" the old man asked.

"How can you know him? He is the top astronomer in China, so tall, I am just an ordinary student of astronomy, and the gap between the two is too big. Lin Shanshan said, "Do you know him?"

"Professor Shen's fame is so great that no one who does not know his name is unknown to anyone who is an astronomy enthusiast. I'm just an astronomy enthusiast, and there's a big gap between me and you, not to mention him, I can't and I don't have the opportunity to know him. ”

"Hehe, Mr. is modest, the master is in the folk, your astronomy level may not be below me, I am learning theoretical things, and my practical ability may not be as good as yours. Lin Shanshan said.

"Like us amateurs, we are nothing more than looking at the celestial phenomena, how can we have any practical ability, and astronomical telescopes are also amateurs, and we can't see much far. ”

After a while, the rescue flying car arrived, taking people and scrapped vehicles. Lin Shanshan began to walk alone again.

Her mind was still recalling the scene just now, how could a flying car collide, this accident would almost never happen, and she had never seen or heard of a crash in the world today in her memory. Was the collision between the two cars accidental? Was the collision over the campus also accidental? The old man said that there was a magnetic field on the campus or something that caused the collision, and obviously he was joking, but if the collision was over the campus, could it really have something to do with the magnetic field? So many devices in the school will definitely produce a magnetic field, although it is not subjectively made. Lin Shanshan stopped and looked at the place where the accident happened just now, the collision happened in an unexpected instant, the person and the damaged vehicle did not hit the ground at the same time after the collision, and the materials scattered on the ground after the vehicle was broken did not hit the ground at the same time, and it was quiet immediately after the collision, and nothing seemed to have happened in this airspace.

Magnetic field? The old man just said that the magnetic field in the school has changed? Suddenly, Lin Shanshan's thinking was greatly opened, and she thought, why should that set of passwords follow the train of thought of her predecessors? Why do you have to find out the internal connection of the six passwords? Can't you find another way? Coming from the same direction is itself the biggest internal connection. She hurriedly ran back to the archives, found the six passwords, enlarged the six passwords, and projected them side by side on the wall of the archive room, staring at them carefully. After watching it in the middle of the night, looking at it, the scene just now over the campus seemed to be in the information on the wall. She came to her senses, and suddenly opened her mouth, so it was!

She quickly wrote her dissertation, and when she defended it, she confidently said: "These six codes were sent by two unknown galaxies 10 billion light-years away from the earth, and due to the sudden change in the magnetic field between them, two galaxies that are not affiliated with each other and operate separately collided unexpectedly and irreversibly, and the most tragic moment of the whole collision process occurred 6 times, and these 6 times were captured by the distant earth." After the collision, there was a return to calm, at least there was no enough information to send to Earth. So, for 300 years, there has been no news from that direction. ”

Her whole paper was impeccable, and was highly praised by Professor Shen Wei, the main defense teacher, and after the publication of the paper, it caused a sensation in the astronomical community around the world, and research institutions have turned the astronomical telescope to that direction, and after observation and research, Lin Shanshan's judgment was confirmed. Lin Shanshan thus became the second disciple of Professor Shen Wei's team.

"Shanshan, don't be in a daze, let's go. Professor Shen Wei said.

Everyone agreed on the message sent to the end of the sky, and Professor Shen Wei asked Lin Shanshan to send it, since it was not malicious information, there was no need to hide the location of the earth when sending it.

For sending such a message, Lin Shanshan couldn't help but be a little nervous, this is the first time that human beings have direct contact with outer spacemen, and a slight difference will cause immeasurable losses, the subtitles are played, and everyone has repeatedly confirmed that they are correct, Professor Shen Wei issued a sending order, so the first Chinese character message of mankind flew to a place 15 billion light years away.

Half a month has passed, and there is still no news. Professor Shen Wei told everyone not to worry, "15 billion light years, only half a month, how can the information come and go so quickly?"

"I think there's a problem. Xu Jiawei said.