Annihilation of the solar system

Liu Mengzhu's words with a slightly weeping tone seemed to hit the mark on the minds of most astronomy experts on the basketball court.

Wei Xu closed the lunch box that had been eaten to the last bit:

"Of course it makes sense. If we know the mass of their stars, we can use Teacher Zhou's mathematical model on wormhole transportation capabilities and energy consumption to deduce that they can open large wormholes."

Lin Tianyu shook his head:

"It's useless. We don't even understand what those things in the transfer orbit are now, and we can't even talk about winning against them. If one day they really send a fleet through the wormhole, in their eyes,

There is no difference between us and ants."

Wei Xu wanted to say something, but he was speechless for a moment. Although Lin Tianyu's words were unpleasant to hear, they were true. After a long silence, only a scarlet residual light from the red sun on the horizon was projected onto the bloody sunset.

Xia Lan said solemnly:

"Before we ants were trampled to death by the giant, no matter whether the giant noticed it or not, we at least looked up at it."

The basketball court is always crowded no matter day or night. Astronomers are not prescribed fixed working hours. They all work until they are tired, then go back to the dormitory to supplement the necessary sleep, and then go back to the screening work.

Dusk had just broken, and a pale gray morning light shone on a corner of the sky. All the experts who participated in the analysis during this period gathered in the basketball court. The rows of large tables in the middle of the basketball court were also pushed aside and replaced with

What is shown are rows of chairs and astronomers sitting on them.

Three images much larger than ordinary photos hung on the mobile blackboard in front. Shen Manling stood in front of the photos with a slender pointer in her hand:

"After a long period of unremitting efforts by thousands of astronomers, we finally screened out these three star systems from tens of millions of solar gravitational lens photos. During this time, everyone was immersed in their own analysis and screening groups, and the

We may not understand the overall situation, so now we ask the discovery teams of each photo system to tell us about their findings."

An astronomer from North America stood in front of the first photo, which looked like three uneven birthday candles on a birthday cake at the other end of the living room after the lights were turned off.

"As you can see, the triple star system we discovered is about 570 light-years away from the Earth. If you look carefully here..."

He pointed at a tiny black shadow next to three orange-yellow spots. If he hadn't been pointing at it with his pointer, no one would have seen that there was a planet there.

"There is a rocky planet here, about the same size as the Earth. Its three suns are all yellow dwarfs and have similar masses to our sun. We have roughly calculated that the motion trajectory of this four-body system is very stable. At least according to our calculations

This is the pattern for the past 100,000 years and the next 100,000 years. The poor planet will not encounter chaotic eras repeatedly like in the novel."

When this was said, everyone laughed slightly, but quickly became quiet again.

"This planet will repeatedly move stably around three stars in a certain period. Based on calculations of the star's luminosity and the position of the planet's orbit, this planet is suitable for habitation and may evolve advanced civilization. In terms of distance, it is also in line with Professor Shen's previous predictions

Prediction. This is what we screen for.”

The expert returned to his position amidst applause. Another astronomer took the pointer from his hand and walked to the second photo. The photo looked like a flashlight sweeping through the shadows in a dark night.

A cat, two bright lights reflected from the cat's eyes.

"This is a binary star system we discovered about 810 light-years away from the Earth. The mass and age of these two stars are comparable to our sun. They move in circular motions around their center of mass and are very stable. In them

Around it, we have discovered at least four giant gas planets, which are similar to our Jupiter."

She pointed to a few small black dots next to the two groups of light. These black dots were much more obvious than those in the previous photo.

"Further analysis shows that there are rocky satellites twice the size of the moon around these gas giant planets. At least two of them are located in the habitable zone. We believe that life may exist on these rocky satellites.

Even civilization evolved."

Xia Lan walked to the last photo. There was only a blurry orange light spot on that photo, and there was a slightly reflective dot next to the light spot.

"This is a lone star system with only one star. The mass is about 1.5 times that of the sun, and it has only one rocky planet. The mass is about 2.5 times that of the Earth, and they are about 650 light-years away from the solar system."

An astronomer below raised his hand,

"Dr. Xia Lan, we have studied the system you mentioned. The planet is too close to its parent star. I deduced that it is unlikely to have liquid water or life."

Xia Lan nodded:

"Yes, its orbit is indeed too close to its parent star, and its revolution period is only about 120 Earth days. But through calculations, we believe that the planet and its parent star are in a tidally locked state. Just like ours

Just like the moon, its revolution period and rotation period are equal, so only one side always faces us. That planet always has only one side facing its parent star."

There was a discussion in the basketball court, and another voice said:

"But I don't understand, how can civilization evolve when it is almost impossible to produce life in such an extreme environment?"

Xia Lan pointed to the planet in the photo that was half reflecting the shimmering light and half submerged in the background of the photo:

"Yes, this seems impossible. But let's not ignore that this huge rocky planet will have a long, narrow, vast, and very stable twilight line due to tidal locking. On that twilight line, forever

It will only be mornings like ours now..."

Xia Lan pointed at the golden morning light streaming in through the ventilation windows on the upper part of the court.

"Or dusk."

The experts from various countries below were in an uproar. Xia Lan continued:

"We have calculated that although this planet is not habitable as a whole, its habitable range on the dusk line is equivalent to half of the earth's land area. The temperature is equivalent to our temperate zone, and there is liquid water. If their cores are not extinguished,

Then their magnetic field is enough to resist stellar winds. So we think it is possible for civilization to exist on this planet."

There was a long discussion on the basketball court. Most astronomers still support the judgment that triple stars and binary star systems are the mother stars of alien civilizations, because those two stars do seem to be more suitable for the evolution of life and civilization.

Appear.

Xia Lan put down the pointer and looked at the astronomers with deep eyes. After a while, he said solemnly:

"If the three planets we discovered have each other's parent star civilization, my personal preference is the Twilight Line civilization. Because their living conditions are worse."

Xia Lan's tone was not serious, even a little flat. But those words that did not set off many sound waves in the air instantly made the entire basketball court quiet, as if there was no one inside at all.

(The storm is about to come, the wind is everywhere, long live the motherland!!!)