He Jun's eyes glared: "Just like today?" ”

"That's right." Cangban He Jun nodded, "Originally, the environment of Venus was not much different from that of Earth, but what was the result?" You should know what the situation of Venus is, high temperature, high pressure and strong acid rain, and you can come up with a lot of things that are different from other planets just by thinking about it. ”

"Damn, they're too thorough, aren't they?" He Jun's face changed.

He has been fond of astronomy since he was a child and knows much more about the universe than ordinary people.

If the place of Venus is just a bad environment, the key is that Venus not only lies down and orbits, but also rotates in the opposite direction to other planets!

Even if both of these points make sense, Venus's rotation is surprisingly slow, taking longer to make a revolution than a Venusian year.

At the beginning, He Jun stubbornly believed that the heavenly court was on Venus, so there was a saying that there was one day in the sky and one year on earth.

According to the known theory of galaxy formation, the rotation speed of the planets at the beginning of the formation was very fast, and the rotation speed of the earth was slowly reduced to the modern 24 hours in a long time because of the gravitational pull of the moon.

Venus has no moons, and the second is not as close to the Sun as Mercury, and the external gravitational force acting on the stars is very small, and the rotation speed is so slow, which is itself an unreasonable phenomenon. So much so that many astronomers believe that Venus's anomaly is due to a comet impact or some other astronomical catastrophe.

However, the truth of the matter is that the ancient stars deliberately destroyed it 2.2 billion years ago!

Just listening to this thing feels like it is enough, if this was not said from the mouth of He Jun, He Jun would have to spray him with a face.

"Earth is lucky." He Jun couldn't help but complain.

"Not as lucky as you think. The Earth originally had no satellites, and when the Ancients destroyed the Earth, they knocked out a large chunk of the Earth. Finally it became the moon. On the contrary, Mars was also lucky, and it survived like Earth. ”

"That's right. They asked you to take care of Mars, right? What are you going to do? He Jun suddenly remembered modern Mars.

Cangban He Jun sighed: "What else can I do, destroy it like the earth." ”

"Can Mars recover?" He Jun asked worriedly.

"I don't know, leave it to fate, you don't know what Mars will look like in the future."

"It's a pity to know it, so you can't think of a way?"

"I can't." He Jun shook his head firmly, "The ghost star people never transform the planets, they always grab the ready-made, if Mars is occupied by the ghost star people, it will become a bridgehead for the ghost star people." Once the earth's environment is restored. The ghost people will occupy the earth as soon as possible, and what will happen to us at that time? ”

When it comes to the existence of human beings, no one can deal with it calmly, and He Jun is the same.

At this time, there are still more than 800 million years before the emergence of human beings, and only if everything goes down according to the original historical trajectory, and the earth waits until the Cambrian period to recover, the evolution of life on the earth will follow the laws of history from scratch, and finally evolve into human beings who defy the sky. If any link in the middle is interrupted, there is a possibility that human beings will be stillborn.

Speaking of a thousand ways and ten thousand, whether Mars is left or destroyed has little to do with the ancient stars, but from the perspective of human beings. In any case, you can't leave Mars to the ghosts.

"There's no place to reason about this." He Jun couldn't help but mutter.

"Who's to say it's not." He Jun picked up the cup and drank it all, like a cup full of spirits, "And the fog star." Haven't heard the name? Not surprisingly, this place is between Mars and Jupiter. ”

"Asteroid belt!" He Jun's eyes lit up.

He remembers seeing a formula for calculating planetary distances in "One Hundred Thousand Whys" as a child. According to the formula, there should be a planet between Mars and Jupiter. But in reality there is only an asteroid belt.

It turns out that there are no planets, but they were artificially blown up 820 million years ago.

"That's right, it's the asteroid belt." Cangban He Jun nodded.

"Isn't that right? How do I remember hearing that all the asteroids there are not as big as the moon when you put them all together......"

"You're talking about the future, not the present." He Jun knocked on the table with his fingers, and a robot silently slid to the edge of the table, and with a stretch of his fingers, a stream of liquid filled his cup.

He Jun looked puzzled, and He Jun replied to himself without waiting for him to ask: "If such a big planet explodes, how can all the debris stay in the asteroid belt?" ”

He Jun suddenly landed, isn't it, the planetary explosion is not a directional explosion, and the fragments must be scattered in all directions irregularly, how can they all stay in the orbit?

Imagine a planet exploding in the air and debris scattered in all directions, and then what?

The debris of the trumpet is small and fast, first flying away from the explosion position, part of it flies away from the ecliptic plane, part of it stays in the asteroid belt, and the rest is divided into two waves, flying to the orbit of Mars and Jupiter respectively, unless the debris happens to fly near Mars or Jupiter, otherwise this part of the debris is very likely to cross the planet's orbit and become an asteroid orbiting the sun, and will threaten the safety of the earth for a long time.

The asteroid that wiped out the dinosaurs is the fragments of the fog star.

Although medium and large debris is also spreading in all directions, the high mass causes these debris to fly slowly, and even if it flies into the orbits of Mars and Jupiter, it will not be able to fly beyond the orbit for a while.

Forget about the congenitally deficient Mars, at most, who is in its orbit to clean up whom.

But Jupiter, which is like a giant Mac, is not the same, its gravitational pull is too strong, and as long as it enters its gravitational range, it is difficult to escape Jupiter's clutches. Even if it is located close to Jupiter's orbit, it will slowly shift towards Jupiter's orbit due to the huge gravitational pull.

Jupiter has several large moons, a lot of small moons, and layers of rings, and the devil knows how many of these stars come from the contribution of fog stars......

Thinking of this, He Jun suddenly remembered a movie describing Europa, in which there are murderous protists hidden under Europa's ice, and in the real Europa ice sea, there may be descendants of foggy star creatures!

He Jun probably remembered what he was thinking at the beginning, and he didn't bother He Jun, and waited patiently for He Jun to come back to his senses.

After a long while, He Jun smiled apologetically: "Where did we go?" ”

"Speaking of Fog Star." Cangban He Jun said, "There are some things that are inconvenient to say now, but you will know in the future." ”

He Jun's heart moved: "Why do I think you have something to say?" ”

"I can guess your ability, but I can't, and I can't tell you if I ask." (To be continued.) )

PS: Isn't the setting a bit big again?