The date is July 24, 2015.

This day was later called "the day of the first fire".

At 12:21:39 p.m., the deep space exploration satellite in space and many surface observation stations received the signal almost simultaneously.

The signal is strong, regular, and continuous, and it is impossible not to attract great attention.

Even if it's lunchtime in many places.

But after all, the earth has 24 time zones, and important observatories are all manned after all.

Not to mention the fact that space activities are becoming more frequent and space observations are becoming more and more important.

So on the desk at the top, a sudden incident put everything else aside for the time being.

After listening to the report, Tang Yuanfeng immediately asked, "Where is Gu Song?"

……

The scientists stationed there on the Tiangong space station, which has been transferred to synchronous orbit, opened their mouths wide and looked at the still-fluctuating signals on the screen.

"This ...... What is this?"

"Is the data being recorded?"

"All the time...... That's a lot of data!"

"Can the source of the signal be analyzed?"

"Not so fast...... But such a strong signal is either a very distant, very strong signal source, or it is ...... It's close!"

"The key is the scale of this signal...... It's not like a natural phenomenon......" a scientist from the northern bear, his tone trembling slightly.

"Have you contacted HSA? Have you contacted Flint Aerospace? We need to analyze it as soon as possible! The computer on Tiangong is not enough to cope with this task!"

"It has been reported to the ground, and such a strong signal will be received by the ground. ”

"Oh my God, something is wrong!"

……

"Houston! Houston! Did you get the signal?"

Houston.

In the mission control hall of the Johnson Space Center, everyone was nervous and busy, excited and scared.

Flight Control Commander Leddings pressed the headset and said, "We can see! ”

"Houston! This is definitely a signal of extraterrestrial civilization! The people who do SETI should be partying!"

Ladence said helplessly: "Calm down! Calm down! Continue listening and recording, but don't send any signal in the direction of the source! Repeat, don't send any signal in the direction of the source!"

"Ouranos understands!"

"Sir, Professor Paul is already online. ”

Ladence nodded, and walked over to her seat and sat down.

On the screen, Professor Paul, who is now in charge of the billion-channel extraterrestrial detection project at Harvard University, greeted excitedly: "Mr. Ladings, do you have a more complete and clearer signal data?"

"That's right, Professor Paul. I guess you'd better get off to Houston. The Commander-in-Chief is gathering senior officials and scientists. ”

"Oh, thank you for having me, I've asked my assistant to book my plane ticket for me. Oh my God, this is crazy!"

In a small house not far away, a group of people are busy.

The door was slammed open, and a man rushed in with a stack of papers, gasping for breath and asking, "Is the modeling complete?" ”

"It's been done a long time ago, give it to me. ”

As soon as the person sitting in front of the computer kicks his foot, the chair slides over. He snatched the stack of papers, then slid back to the computer.

While his fingers were rapidly entering the parameters, he couldn't help but say aloud: "This is impossible, is this data real? The magnitude of this data...... The source of the signal cannot be beyond the confines of the solar system!"

"God, I want to inform my boss and get Spitzer, Hubble and Fermi to get right. Gemini and LBT are also on standby as soon as possible. The data will be calculated very quickly. ”

In a state of high tension, the two major ground-based Tianwang telescopes and the three major space telescopes urgently stopped their current tasks and adjusted their standby.

"The source is constantly moving, but very regular...... Initial Signal Position...... Oh my God, near Saturn!"

There was a moment of complete silence in the room, and then a voice said, "Saturn is near...... It is impossible for a natural phenomenon to produce electromagnetic signals of this level......"

Let's quickly calculate the position of the signal source. ”

"It's in motion...... It's fast!"

“Fxxx…… This is to the earth...... Wait a minute. ”

As the signal data continuously transmitted at different times is continuously analyzed, its signal source positioning data is gradually calculated.

"This trajectory ......"

"It's out! It's Titan's orbit! No, it's strictly speaking!"

"Quick, tell the boss!"

……

In space, time comes first, and many observation devices are aimed in the direction of Titan.

Among them, it also includes the new Sky Survey space telescope recently sent to the sky by HSDA.

On the ground, the 500-meter aperture spherical radio telescope FAST, which has been completed two years ahead of schedule after the establishment of HSDA, has also been added to the observations.

Gu Song had already returned to Yanjing and was on his way to Shuhai.

Along the way, they were all on the phone.

"That's a lot of data, and the amount of information it contains, it's amazing. The participation of quantum supercomputing centers in the analysis is certain, but the involvement of linguists is also required. ”

Tang Yuanfeng asked very seriously, "Is there no clue over there?"

Gu Song said calmly: "There really isn't it now, now it's just a large number of signals, and preliminarily, the signals are still encrypted." For me, this is one of the topics that I have always paid the most attention to, and you can rest assured, I will do my best!"

"According to your opinion, where is the headquarters located? Changwen, Wuhu, Yanjing, or Xinghai?"

"Xinghai. HSDA's quantum supercomputing center is there, and the power of the communication antenna at the galaxy airport is also sufficient, and the communication conditions there are better than those of Yanjing and Wuhu. ”

"Okay, I'll start arranging. When I arrived, I came straight to my office. ”

……

Tejing rushed to the airport in a very hurry, and the special plane had already been arranged.

"Elder Tang said that the emergency summit was held at the HSDA headquarters in Xinghai?"

"Yes, the leaders or envoys of the countries in the know have converged in Xinghai City. The quantum supercomputing center over there is modeling and parsing the data. ”

Tejing nodded: "Have the professors already arranged for someone to pick them up?"

"It's all on the way. ”

No more words along the way.

On the way, Tejing closed his eyes and thought about the impact of this event.

There is too little information that is known now, and according to the information obtained by Beixiong himself and the HSDA information shared by the Tang elders, it should be highly transparent.

Directional signals of suspected extraterrestrial civilizations......

This is really a big event that disrupts all the arrangements, and it is the top sudden event that has occurred since human civilization has been recorded on Earth.

It's ...... How big is the crisis, how big is the opportunity, and where will the world be led?

Sensing that the car had stopped, he opened his eyes and got out of the car to board the plane.

On the plane, everyone got up from their seats to greet him.

Tejing shook hands with the two people in front of him, stood in the cabin and said, "Professors, you represent the top intelligence of the Northern Bear. According to the current information, this must be a major human event that all countries will face together. But the first task now is to decipher these signals and get to the bottom of the matter. Like you, I don't know what the future holds. But in any case, maybe from the beginning of the cracking process, we have to go all out. Your performance may have a bearing on the future of the country. ”

At the moment of the event, these scholars who were urgently summoned looked solemn, and the cabin was full of swearing.

The plane took off and crossed the clouds. Every eye by the porthole is looking up at the deep sky.

At this moment, the sun was shining on the clouds, but everyone only felt the cold coming from their bones.

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