Annihilation of the solar system

The New Year's sunshine shines on the white snow, making the entire hill look particularly enchanting. Xia Lan is handing over work to the team that has come for a shift, and Lin Tianyu is loading luggage into the trunk of the car. The open space of the Near-Earth Object Observation Building

On the edge, Wu Fan and Liu Mengzhu were smoking cigarettes facing the silver plain in the distance.

Wei Xu leisurely passed behind them with half a steamed bun in his hand:

"Excuse me, you two, how does this cigarette smell?"

Liu Mengzhu winked and made a face, "Humph!" and ignored Wei Xu. Wu Fan slowly exhaled a puff of smoke:

"Lao Wei, I now understand how you felt before. But what I can't understand now is why you quit it."

Wu Fan looked at the half-burned cigarette in his hand and sighed meaningfully:

"In this fucked-up era, all the muscles in the body and the nerves in the brain are almost broken. This is the only medicine that can save the world."

Xia Lan walked out of the Near-Earth Object Observation Building:

"Everything has been handed over, let's go back!"

"Without this telescope, I could really forget everything and spend the rest of my time happily treating this place as a paradise!" Wei Xu sighed as he walked towards the car.

Back to the office of the Institute of Near-Earth Space Defense of the National Academy of Sciences. Compared with previous years, the biggest change here is that there is an armed rack in the corridor at the entrance of the office. On the rack are 5 automatic rifles, 5 helmets and 5

Armed bag, this is the weaponry of Xia Lan's office.

Not only in Xia Lan's office, but also in the entire National Academy of Sciences office building, there are different numbers of armed racks at the door of every office. And in wider places, from schools to factories, from scientific research institutions to transportation fleets, from national

From government agencies to material distribution stations, every workplace has such a configuration.

Although highly skilled people like Xia Lan's team will not directly engage in the battle at the beginning of the invasion, no one can tell clearly what will happen to the doomsday war that is already close at hand after it begins.

What does it look like.

Therefore, mastering necessary combat skills has become a required course for every human who wants to survive the invasion. And this course, at this point in time, has become as important as eating and sleeping.

As soon as Xia Lan wiped off the thin dust on her desk and turned on the computer, Shen Manling came to the office. She was not wearing the most common elegant skirt, but a smart and simple outfit.

"Xia Lan, please quickly open the EDA scientific research platform and take a look. The Astronomical Observation Center just called and said that there is something in the latest photos taken by the Gaoming space telescope."

"Okay, Teacher Shen." Xia Lan was operating on the computer.

Wei Xu frowned:

"'Gaoming'? Isn't it responsible for monitoring the outer reaches of the solar system? Could it be..."

Before she finished speaking, a photo of twinkling stars appeared on Xia Lan's computer screen. After zooming in on the photo, a hair-like blur appeared in the center of the photo.

"It passed through interstellar dust material again!" Xia Lan said in a daze.

Others also gathered around, and Xia Lan took another zoomed-out photo. The hair appeared in a corner of the photo, almost beyond the field of view of the telescope. Lin Tianyu looked at the photo and said in confusion:

"The field of view tracking position of 'Gaoming' is determined based on the speed and orbit data calculated when 'Oumuamua was discovered 4 years ago when it passed through interstellar dust. The imaging quality and calculation accuracy 4 years ago were very high. This time The photo taken should appear in the middle of the photo.”

Wei Xu frowned:

"Unless there are subtle changes in both its orbital position and speed."

Shen Manying nodded slightly:

"This is the first photo, and it is exactly what Tianyu said. The telescope's field of view was set based on the observation data 4 years ago. But soon they will readjust the telescope's field of view to take clearer photos. .”

Sure enough, ten minutes later, Xia Lan saw the latest uploaded imaging photo from the eda scientific research platform. After the photo was enlarged, the trail left by Oumuamua's high-speed passage through the interstellar dust cloud became clearer, and the simultaneously transmitted There is more observational data.

Xia Lan and the others immediately started calculations based on the latest observation data.

Wu Fan was the first to notice the anomaly. He looked at the manuscript paper and repeatedly confirmed his calculation process:

"It's a little bit faster than it was four years ago."

"Yes, this is the result of my calculation. But the increase is not large." Liu Mengzhu added.

"According to the current orbital speed, they will reach near-Earth space 8-10 months earlier than the organic creatures in the transfer orbit." Xia Lan said.

Lin Tianyu shook the pen in his hand:

"What did they do when they arrived so early?"

Wei Xu, who had been silent, was still immersed in calculations. Wu Fan said:

"Judging from the observation data, what was photographed this time is still the core of 'Oumuamua. If we look at the previous situation, it may capture natural celestial bodies in the Kuiper belt or asteroid belt, camouflage itself, and then Enter the inner solar system.

This process of deceleration and camouflage also takes time. Calculating this, the time it takes to reach the earth should be about the same as that of organic organisms in transfer orbit."

Wei Xu suddenly stopped the calculation in his hands. After repeatedly checking it with the data on the computer, he picked up the calculation paper and said firmly:

"No, it won't disguise itself and will arrive near the Earth three to six months earlier!"

Wu Fan on the side took the manuscript paper from Wei Xu's hand:

"Tell me the reasons for your judgment, Lao Wei."

"I have just verified the position and angle of the telescope relative to the North Celestial Pole when the Gaoming probe took the photos. Then based on the coordinates of the telescope's field of view, the length and declination of the wake left by Oumuamua when it passed through the dust cloud, the predicted orbit was carried out Correction.

The conclusion is that 'Oumuamua will pass hundreds of thousands of kilometers above the Kuiper Belt and the asteroid belt, rather than passing between them. It will be 3-6 times ahead of the organic life in the transfer orbit. It takes months to reach the Earth. The calculated result may not be accurate, but the order of magnitude is correct.”

Everyone gathered in front of Wu Fan's desk and watched him calculate the contents on the manuscript paper. In the end, there were only slight differences in the numbers after the decimal point. Just as Xia Lan was about to say something, a burst of sound suddenly came from the window. A loud and shrill scream.

The sound gradually became sharp from low to high, and then fell back to a low level. Repeatedly, it was a city air defense alarm.

Everyone immediately put down their work and filed out of the office door quickly and orderly. In the corridor, they skillfully put on their armed belts and helmets, loaded the magazines into the guns, and then ran downstairs.

Amidst the air raid sirens that resounded throughout the city, the entire National Academy of Sciences building and the entire city were doing the same thing.