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May 30, 2027, Zhongnanhai.

The atmosphere in the conference room was stagnant, the participants looked heavy, a dozen old smoking guns in military uniforms swallowed the clouds, the ashtray on the conference table was full of cigarette butts, and the air was filled with the lingering smell of smoke.

The first brother took a sharp puff, poked the burned cigarette butt into the ashtray and twisted it fiercely: "Everyone knows the situation, don't look at Europa There is still a year and a half to go to Earth, but there is not much time left for us, we ...... No, the situation facing humanity as a whole is unprecedentedly severe, and we cannot sit idly by, let alone pin our hopes on other countries! ”

Speaking of this, the first brother lit another cigarette, took a heavy puff, and spewed out a puff of smoke like a fire in his stomach: "Lao Qiu, has the new plan been brought out?" "Brother Yi didn't smoke originally, but the pressure on him has been too great lately.

"The preliminary plan has been brought out, but it has not had time to be perfected." There was a lingering heaviness between Qiu Tianning's eyebrows, and his tone was the same.

The first brother waved his hand, and the cigarette between his fingers drew a few irregular bright lines: "Tell me, be detailed." ”

Qiu Tianning said: "The analysis believes that even if the nuclear bomb with a yield of 100 million tons is equipped, the possibility of the Fourth Fleet stopping Ganymede is very small, and it is recommended to suspend the expeditionary plan." ”

"Is this planning to shrink the forces and wait for the Wood Guards to come over?" The first brother frowned, condensing a sense of unluck.

"It's not!" Qiu Tianning opened the folder in front of him, took out a piece of paper and shook it, "This is the document I got from the Astronomical Bureau, the detailed orbital data of Europa, the analysis found that the current speed and direction of Callisto is not flying towards the Earth at all, but Callisto will fly near Mars in the near future - note, not flying over the orbit of Mars, but meeting with Mars!" ”

Everyone immediately realized that Qiu Tianning had something to say, and everyone's eyes looked at Qiu Tianning together.

Qiu Tianning put down the document and turned his head to look at the first brother: "We feel that this is an opportunity." ”

The first brother was puzzled: "What chance?" ”

Qiu Tianning said: "The speed of Callisto is too fast, it has to slow down to get close to the Earth, so we think that the purpose of Callisto approaching Mars may be to use the gravitational slingshot effect to slow down Callisto with the gravitational pull of Mars!" ”

"What? Impossible, right? Wu Shenglong's stunned eyes widened, "The diameter of Mars is less than 7,000 kilometers, which is a large circle smaller than Europa!" ”

Qiu Tianning said: "Except for this, we can't think of why Europa is close to Mars, and aliens won't come to Callisto to hit Mars, right?" ”

"It's not impossible!" Wu Shenglong said, "The combined mass of Mars and Ganymede is not much worse than that of Earth, right? Mars is still on the edge of the habitable zone, and if these two stars collide and become a new planet......"

The latter words are not spoken, but everyone can imagine what the consequences of Mars being occupied by aliens are.

The first brother turned his gaze to the right: "Huo Qiang, what is your opinion?" ”

The pensive Huo Qiang raised his head: "Mars is very dry, but there is a lot of water on Europa, and the combination of the two can at least form a stable water system, even if it cannot form a vast ocean, and it is indeed possible to turn Mars into a habitable planet!" ”

"It's not that simple, is it?" Wu Shenglong had a different opinion, "How can a celestial impact be so simple, if it really hits a piece of it, it is called an astronomical disaster, even if it really hits a new planet, what can it do, but it took hundreds of millions of years for the earth to stabilize, and the new planet can not be stabilized in 1,800 years?" ”

Qiu Tianning said: "Maybe they have a way to shorten the stabilization time of the new planet...... Who can say anything about aliens? ”

Wu Shenglong was a little stunned: "This brain hole is too big, right?" So what do we do? Wait for the aliens to get the new planet out and grab it, or continue to stop Europa? ”

If Mars could become a habitable star...... That's a habitable star, and it's a lie to say that it's not exciting.

"How can alien things be so easy to grab, of course it's to block Europa!" Qiu Tianning replied as a matter of course, "Don't think about beautiful things, if the aliens really knock out the new planet, we won't be able to grab it." As you said just now, it would be an astronomical disaster for two planets to collide together, and if the new planets didn't come out, the two planets would be smashed first, and then all the asteroids in the sky would fly towards the earth, and the asteroids alone would be enough for us to have a headache. And Mars is too far away, hitting Mars is not as good as hitting Venus, at least the temperature is guaranteed. ”

The last sentence is pure nonsense, but anyone who knows a little about astronomy knows that the problem with Venus is not only the dense atmosphere and ultra-high temperatures, but more importantly, the ridiculously slow rotation of Venus.

Half of the year is daylight, even if Venus is really a habitable star, the temperature will definitely not be low after being exposed to the sun for half a year, and the temperature on the night side will definitely get lower and lower.

Unless Venus's rotation accelerates, it will never be a habitable star.

The first brother said: "How high is the probability of impact?" ”

"It's small." Qiu Tianning said, "No matter how advanced the technology of aliens is, they can't withstand the impact of two planets, and I don't think aliens will mess with their home planet." ”

The first brother nodded thoughtfully: "Go on!" ”

"Yes!" Qiu Tianning agreed, "Our focus is not on what Callisto wants to do, but on Callisto must pass through Mars!" ”

Huo Qiang asked in surprise: "What?" What's next, is it to stop Callisto on Mars? Mars...... Well, how to use Mars to complete the blockade? ”

Finally got to the point, Qiu Tianning said loudly: "It's not about using Mars, it's about using Mars' satellites!" ”

Stunned again, the first brother asked intently, "How to use it?" ”

"The specific plan has not yet come out, the initial plan is to put engines on Phobos and Deimos, and drive them to hit Europa! Qiu Tianning said.

"Will it work?" Wu Shenglong looked at Qiu Tianning's gaze like looking at a neurotic, "How massive are those two satellites?" Do we have that big engine? Besides, is it so easy to ship the engine after it has been built? ”

Just kidding, put engines on satellites? When humans are like aliens, can even planets be driven away with engines?

"It's man-made." Qiu Tianning said, "When I was a child, there were countless nuclear bombs buried on the moon and the plot of pushing the moon to hit aliens, what is it to install engines on two small satellites? ”

"No, the solution is good, the key is whether we have this technology!" Wu Shenglong knocked on the table with his fingers.

"I think it's okay with the technical aspects." Qiu Tianning said, "Even the details need to be carefully scrutinized. ”