Tonight is destined to be a sleepless night.

While ordinary people return to their bedding and fall asleep, astronomical research institutions around the world are extremely busy. For the average person, it is nothing more than an unforgettable meteor shower, a wonderful memory, but for astronomical researchers around the world, it is a huge treasure of incalculable value.

In a private astronomical observation building, an old man with white hair is wearing a pair of thick glasses standing in front of an astronomical telescope, looking intently at the picture seen through the telescope, from the comet approaching the blue star to flying near the blue star, every picture the old man did not miss, a large number of observation data is very important to his astronomical research, if there can be outstanding astronomical research, he can obtain unimaginable huge gains, wealth, status, prestige, popularity...... Just thinking about it makes people excited.

From the initial observation of this comet, the old man has been studying, until now there is a lot of data, but there has been no breakthrough, a lot of data obtained are similar to the past research, tonight is the closest time for the comet to the blue star, and it is also the most favorable time for observation, the old man does not want to let go of any second, if there is no new discovery tonight, the old man can only give up, months of research in vain, it is a pity.

When the comet was discovered in the early days, the comet flew straight in the direction of the blue star, so the observation was only on the side facing the earth, and the side of Huiwei was only a small amount of data, and when the comet flew over the blue star, the other side of the comet could finally be observed.

At first, the old man thought that he could find something on the tail of Huiwei, so he slowly moved the field of view of the astronomical telescope from the comet itself to the tail of the tail of the comet, and it was this move that the old man was surprised to find that there was a black shadow similar to a circle behind the tail of the comet, although it could not be seen clearly in the night sky, but the stars that disappeared and appeared around the black shadow could be determined, and there was indeed a black shadow not far behind the tail of the comet.

This discovery surprised the old man, and he immediately switched to another higher-precision astronomical telescope on the side, and cooperated with the other equipment in the room, trying to see what the black shadow was.

After observing for a while, the old man found that the movement speed of the black shadow seemed to slow down, and the black shadow seemed to have become a little bigger, although it was not very accurate to the naked eye, but the old man could clearly feel that the black shadow had become larger in the field of view of the telescope, and turned his vision to the position of the comet, but found that the comet had moved away, this phenomenon made the old man no longer calm, and suddenly thought of a word in his heart---- meteorite.

There was no time to think about other things, the old man immediately operated the various complex machines in front of him, he needed more data to verify his conjecture, if the black shadow was really a meteorite, if such a large meteorite was really attracted by the earth's gravity, the consequences would be unimaginable.

After recording the data once in 5 seconds, and after recording it 20 times in a row, the old man looked at the data on the computer, and his face turned pale.

I may have been dazzled by the naked eye just now, but after accurately recording the data with the instrument, can I still say that I am dazzled, and the data recorded by the observation instrument does prove that the black shadow is slowly getting bigger, and the distance above the ground is also shrinking.

After a minute or so of a daze, the old man came back to his senses, helped his heavy glasses, picked up his mobile phone and dialed a friend who worked at the National Astronomical Observatory.

At this time, in the National Astronomical Observatory, people are jumping back and forth, more than a dozen figures in white clothes are shuttling among them, looking extremely busy, a middle-aged man in front of the window is doing his own thing, obviously in his forties, most of his hair has fallen out, it is not difficult to see what he has done for his career.

Airplanes... Airplanes... A burst of mobile phone vibration interrupted the man's work state, and after glancing at the incoming call on the phone, the man walked out silently, and when he arrived at a place where he would not disturb others outside, he connected the phone.

"Hey, Lao Zhang, what..." As soon as I connected, before I could say hello, I heard the old man on the other end of the phone say: "Xiao Yang, the situation is urgent, I sent a message to your mailbox, quickly." "Duh... Honk...

Looking at the phone hung up in his hand, the man was puzzled for a while, shook his head and returned to his post, just saw the message reminder that there was a new email, thinking that it was okay to take a casual look, so he opened the email.

It didn't matter at first glance, but he was startled and stared at the content of the email displayed on the computer screen, and the man muttered, "How is it possible." ”

Shocked to shocked, the man quickly calmed down, and immediately stood up and shouted: "Everyone, be quiet, deputy director, come and see, there is an emergency." ”

After speaking, a middle-aged man who was called the deputy director not far away walked over, "What's so much fuss, did the meteorite hit the earth?" ”

Walking to Xiao Yang's post, looking at the data recorded on the computer, the deputy director also put away his joking mentality, and said with a solemn face: "Whose data is this, has the accuracy been verified?" ”

"It's an astronomy enthusiast friend who sent the data, and I just got it, and I haven't had time to verify it yet." Xiao Yang also had a dignified face.

Hearing Xiao Yang's words, the deputy director didn't want to say anything, but the data in front of him was too scary, so he had to be cautious, and said to Xiao Yang: "Send the data over and verify it immediately." After speaking, he turned around and clapped his hands, and said, "Everyone stop what they are doing and cooperate with Xiao Yang to verify the data, be fast." ”

After receiving the task, the time that had been suspended in the room flowed again, and more than a dozen figures quickly shuttled between the various devices, resetting the equipment data with Xiao Yang's data, and after a while, they found the location of the black shadow recorded on the data, and then began to collect and record the black shadow simply.

A few minutes later, the data collection was ready, and looking at the recorded data, the researchers were shocked and couldn't believe their eyes.

Cold sweat broke out on the deputy director's forehead, his hands began to tremble, and his mouth kept muttering: "How is this possible." ”

"Deputy Director." A soft cry made the deputy director sober up, shook his head and said: "The situation is urgent, I have to inform the director, you continue to observe, the more detailed the data, the better." Then he turned and left,

Walked briskly to another room.

There was an old man in the room, wearing glasses, and he could see that his hair was dyed, and his hairline was also very high. After speaking, he quickly walked to the room with the old man.

After quickly reading the data in front of him, the director was no longer calm, his brows furrowed into Sichuan characters, and he quickly made a judgment in just a few seconds: "Quick, notify the above, and immediately convene an emergency meeting." ”

Although the data collection time was very short, it did prove that the black shadow was moving towards the blue star, and for a while, both the national-level cadres and officials, whether they were asleep or not, received an urgent notice and quickly gathered to convene an emergency meeting to discuss how to solve the problem at hand.

In a large conference room, dozens of people sat down in just 20 minutes, and seeing that important people were basically present, everyone began to speak and discuss.

"How's the data being processed at the observatory, do you understand what it is?"

"The data is already being done, but looking at the current data, I can't be sure what it is, and the radar observations don't have any reaction, so far, it looks like a cloud of gas."

"Gas? Why does the gas clump together in the universe and be attracted by the gravitational pull of the blue star? ”

"Time is tight, data is limited, and there is no detailed conclusion at this time."

"Why is it only now that I have discovered that even gas cannot suddenly appear in the universe, and the existence of this thing has not been discovered for so long."

"The preliminary guess is that it has been hiding behind the comet before, because there is a comet blocking it, so it was not discovered, it may have been pulled by the comet, followed by the comet, and then attracted by the gravitational pull of the blue star."

"If you are attracted by gravity, why not by the outer gravity of the sun, which is obviously greater."

"This is just speculation, how it appeared, we don't know, Taili is already doing more detailed data."

......

"I just got the news from the observatory, and I have obtained the preliminary data simulation results, the data shows that the black shadow is accelerating towards the blue star, and the diameter of this black shadow..."

"How big is the diameter, you say, everyone is waiting for your data."

"Straight... Diameter about 2... 2300 km. ”

"2300 km, no, no ... Possible. ”

"Also, according to the current data, the Black Shadow will continue to fly around the blue star in a spiral pattern, and eventually make contact with the blue star, and the contact time with the atmosphere is about 10:53 minutes."

......

This night similar things happened all over the world, from individual astronomy enthusiasts to national astronomical observation and research institutions, many of them found the dark shadow in the night sky, at first these people only thought that the data was wrong, but when more and more data was placed in front of them, these people finally realized the seriousness of the situation.

However, in the face of the unknown black shadow, no one can come up with a feasible plan, and no one knows what the consequences of the black shadow will be.