A flashing red dot on the other wall indicates that news from outer space has come in.

"I don't know what kind of invalid information it is. Lin Shanshan said, because there are too many such situations, and after opening it, almost all of them are useless information, either they can't be deciphered, or they are lightning signals left over from a few years ago in outer space.

"Open it and take a look. Professor Shen Wei still won't let go of any information that might be useful, he said to Lin Shanshan.

Lin Shanshan sat in her seat, swept her right hand against the wall, and the palm print password immediately read out the valid information, and the red dot opened immediately.

"Oh my God?" everyone was so surprised that they couldn't believe the message was true, and they all held their breath and read the message word by word, and the laboratory was dead silent for 30 seconds.

"It's incredible, it's impossible, it's impossible, it's absolutely impossible. Professor Shen Wei broke the silence and said several impossibilities in a row.

Just now, Lin Shanshan opened the red dot, and the information she received from outer space turned out to be a message sent directly in Chinese characters: We have reached a place of 15 billion light years, and in front of us is a transparent, very deep, vacuum-looking, invisible, touchable, and insurmountable wall, please indicate the next step.

Xu Jiawei said: "How is this possible? For the first time, we have received information about Chinese characters that can be read directly without deciphering them, and there are people in the vast outer space who use Chinese characters, and the voice is exactly the same as that of people on Earth? Judging from the language of expression, this is a spaceship sent out by people who use Chinese characters, and now it is 15 billion light-years away, waiting for the next instructions. With our current technology, it is impossible to get to that far, let alone already there. The first time that humans sent an envoy to outer space was more than a thousand years ago in 1977, Voyager 1, which was the fastest at the time, and now it seems to be as slow as a snail, and it is impossible to reach such a long distance with the technology at that time, and even if it can be reached, it will not be possible to reach it in only a thousand years. Since its entry into outer space, Voyager 1 has not been heard from for a thousand years. ”

There was a long pause.

"Are you finished?" Professor Shen Wei said excitedly, he always did not interrupt his disciples' speeches, and let them go.

"That's all I need to think about for now. Xu Jiawei said.

"Don't bask in the surprise you just had, just say whatever comes to mind. Professor Shen Wei encouraged everyone to express their views.

There was silence again.

Professor Shen Wei asked Lin Shanshan to turn off the message from "Tianhua No. 1" and only receive it in the backup. Lin Shanshan didn't know what the professor wanted to do, but she felt that the professor must have a reason to do this, so she didn't say a word and did what the professor said. Then Shen Wei said: "Since everyone is still brewing opinions, then I will talk about my opinions, first of all, this is just an analysis, maybe it is a worthless analysis, the purpose is to let everyone open their minds, but also put forward their own analysis, regardless of whether it is reasonable or useful." Shen Wei continued: " There are two possibilities for this message, one is false information, but this kind of information can be sent here, this is not an ordinary hacker, there is no world's top level of attack can not enter our system, for the sake of insurance, so I just asked Shanshan to turn off the other systems, only the current system; 。 ”

"I agree with the professor's analysis. Lin Shanshan said.

"I agree, but I have something to add. Xu Jiawei said.

Shen Wei was very satisfied and encouraged: "Classmate Jiawei, go on." ”

Xu Jiawei said: "Can we have another way of thinking, this news is the news of the earthlings, and really they have arrived over there......" Xu Jiawei thought for a moment and suddenly stopped.

"How is it possible, humanity has never sent a spaceship to such a far-flung place since history. Ma Biao said.

Professor Shen Wei knew Xu Jiawei's habits, and he must have a new point of view at this time, but he hadn't thought about how to express it yet, so he motioned to everyone not to speak, and let Xu Jiawei talk while thinking.

Sure enough, Xu Jiawei paused for a moment and then said, "Could it be prehistoric humans? Their level of technology at that time has exceeded our current level......

"Prehistoric humans?" Lin Shanshan blurted out.

Professor Shen Wei motioned for everyone not to speak, and listened to Xu Jiawei finish speaking.

"After they went out, they flew for tens of thousands of years or hundreds of thousands of years or even millions or tens of millions of years, and now they are 15 billion light-years away, and they ask the earth to send instructions. And the people who came when they set out have already moved to other places, and their current information is sent to the place where humans live now, and we have captured it by chance. It is also possible that the explorers sent by prehistoric humans after they moved to a new planet, and are now 15 billion light-years away, encountered a situation that they did not know at first, and sent a request to their scientists. If so, the new habitat of prehistoric humans must be in the direction of our planet. If we continue along this line of thought, we are the descendants of the part of the people that prehistoric humans did not take away. They must be hiding in some galaxy near us, most likely in the constellation Centauri, maybe on the planet Proxima Centauri, and according to their level of development, they should know where we are now......"

Hearing Xu Jiawei's eloquent speech, everyone's emotions became more and more excited.

Lin Shanshan couldn't help but interject and said: "This is an exciting hypothesis, the mass extinction of life on earth 65 million years ago, there were human beings at that time, and some of our ancestors may have migrated to other planets when they became extinct. So we have a new problem, to find our own ancestors, and I agree with Garvid, they must be around here, otherwise the signal would not have come in our direction. ”

"There is also a possibility that these emissaries were sent out by the earth, but in the course of their flight, for some reason, the human race became extinct, but they did not know that today, of course, this today does not mean today, they have finally reached the end of the sky - for the time being, because according to their description, it seems that they cannot get by, so they sent instructions to the earth for the next move. If this is the case, then they have been away from Earth for a long time, and according to their technology at the time, it is not impossible to reach a place of 15 billion light-years. Xu Jiawei said while thinking, "As for the 65 million years that Lin Shanshan said, why is it so hypothetical?"

Lin Shanshan said: "Didn't there be a mass extinction of life on earth 65 million years ago? Prehistoric humans may have escaped at that time. ”

Xu Jiawei said: "This is a reasonable hypothesis, but I also have a not necessarily reasonable hypothesis, after the mass extinction, there are also survivors, such as our prehistoric humans, at that time their science and technology was not developed, just passively, luckily survived, after tens of millions of years of development, finally reached a highly developed level millions of years ago, capable of sending spacecraft to outer space, and now the message sent may only be sent four or five million years ago." Later, these prehistoric humans either migrated to alien planets or became extinct due to their own reasons. ”

"Extinction due to its own reasons?" Chen Jie said with a plausible sigh and a question.

"That's right, its own reasons, just like the catastrophe that almost wiped out humanity 900 years ago, are the result of the high development of human science and technology. Professor Shen Wei said.